PNEG-4021
40 Series 18', 21' and 24'
Diameter Bins
Construction Manual
PNEG-4021
Date: 06-11-13
2 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Table of Contents
Contents
Chapter 1 Safety ..................................................................................................................................................... 5
Safety Guidelines .................................................................................................................................. 5
General Safety Statement ..................................................................................................................... 6
Safety Instructions ..................... ... .... ............................................................................. ........................ 7
Safety Sign-Off Sheet ........................................................................................................................... 9
Chapter 2 Decals .................................................................................................................................................. 10
Roof Damage Warning and Disclaimer ............................................................................................... 10
Overfill Warning ...................... ... ... .............................................................................. ... .......... ... ... ... ... 13
Chapter 3 General Overview ............................................................................................................................... 14
General Information ............................................................................................................................ 14
Anchor Bolt Charts .............................................................................................................................. 14
Tools Required for Construction ............................ ... .... ... ... .......................................... ... ... .... ...... ... ... 20
Guidelines for Proper Storage of Grain Bin Materials Prior to Construction .............................. ... ... ... 20
Guidelines for Construction Procedures and Lifting Jack Usage ........................................................ 21
Guidelines for Placement of the Decal Sidewall Sheet ....................................................................... 22
Chapter 4 Bolt and Nut Usage ............................................................................................................................ 23
Hardware Requirements for Sidewalls and Stiffeners ......................................................................... 23
Bolt Identification ................................................................................................................. ................ 26
Color Chart for Bin Hardware Bucket Lids .......................................................................................... 31
Chapter 5 Assembling Sidewall Sheets ............................................................................................................. 32
Color Codes for Sidewall Gauge Identification .......... ................. ................ ................ ................ ......... 32
Caulking Detail for Standard (Non-Laminated) Sheets ....................................................................... 33
Caulking Detail for Laminated Quad Pattern Sheets .......................................................................... 35
Chapter 6 Stiffeners ............................................................................................................................................. 38
Stiffener Part Number Description ...................................................................................................... 38
Color Codes for Stiffener Gauge Identification .... ................ ................ ................ ................ ................ 38
Standard Stiffeners ............................................................................................................................. 39
Top Stiffeners ...................................................................................................................................... 40
Stiffeners Splice ............................................................................................................................... ... 41
Base Stiffeners .................................................................................................................................... 42
Base Boots .......................................................................................................................................... 43
Close-Punch Connection for a 1 Ring Top Stiffener (16 Gauge) and a 2 Ring Stiffener (16 Gauge) . 44
2 Ring Top Stiffener to a 2 Ring Stiffener (15-16 Gauge) Connection ................................................ 45
Close-Punch Connection for a 2 Ring Top Stiffener to a 2 Ring Stiffener (16 Gauge) ....................... 46
2 Ring Stiffener (15-16 Gauge) to a 2 Ring Stiffener (15-16 Gauge) Connection ............................... 47
Close-Punch Connection for a 2 Ring Stiffener (16 Gauge) to a 2 Ring Stiffener (16 Gauge) ........... 48
2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (0-14 Gauge) Connection ................................... 49
Close-Punch Connection for a 2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (0-14 Gauge) ..... 50
2 Ring Stiffener (0-14 Gauge) to a Close-Punch Base Stiffener (2-8 Gauge) Connection ................. 51
Close-Punch Connection for a 2 Ring Stiffener (0-14 Gauge) to a Base Stiffener (2-8 Gauge) ......... 52
2 Ring Stiffener (0-14 Gauge) to a Base Stiffener (10-16 Gauge) Connection ....... ... ... ... ... .... ... ... ... ... 53
2 Ring Stiffener (2-14 Gauge) to a Base Stiffener (10-16 Gauge) Connection ....... ... ... ... ... .... ... ... ... ... 54
2 Ring Stiffener (15-16 Gauge) to a Base Stiffener (10-16 Gauge) Connection ................................. 55
Close-Punch Connection for a 2 Ring Stiffener (16 Gauge) to a Base Stiffener (10-16 Gauge) ........ 56
Close-Punch 2 Ring Stiffener (2-14 Gauge) to a Laminated Stiffener (2 Gauge)
with an Insert (10-14 Gauge) .............................................................................................................. 57
Close-Punch Laminated Stiffeners (2 Gauge) with Inserts (10-14 Gauge) ......................................... 58
Close-Punch Laminated Stiffener (2 Gauge) with an Insert
(10-14 Gauge) to a Laminated Base Stiffener (2-5 Gauge) with a Base Insert (2-14 Gauge) ............ 59
Base Stiffener (10-16 Gauge) to a Base Boot Connection ........................................ ... ... ... .... ............ 60
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 3
Table of Contents
Close-Punch Connection for a Base Stiffener (10-16 Gauge) to a Base Boot .................................... 61
Close-Punch Connection for a Base Stiffener (2+2 Gauge - 8 Gauge) to a Base Boot ...................... 62
Close-Punch Laminated Base Stiffener (2 Gauge) with Insert (2+14 to 2+10 Gauge) to a Base Boot 63
Close-Punch Standard Stiffener to a 12 Bolt Pattern Laminated Stiffener with Insert ........................ 64
12 Bolt Pattern Close-Punch Laminated Stiffeners with Insert ........................................................... 65
Close-Punch 12 Bolt Pattern Laminated Stiffener to Laminated Base Stiffener
with an Inserts to a Base Boot ............................................................................................................ 66
Close-Punch 12 Bolt Pattern Laminated Stiffener to Laminated Base Stiffener
with an Inserts to a Base Boot ............................................................................................................ 67
Chapter 7 Base Angle Installation ...................................................................................................................... 68
Installing the Base Angle ..................................................................................................................... 68
Anchor Bolt Detail ............................................................................................................................... 69
Installing the Base Angle Shims .......................................................................................................... 70
Anchor Bolt Washer Installation .......................................................................................................... 71
Chapter 8 Instructions ......................................................................................................................................... 72
Instructions for Stirring Devices .......................................................................................................... 72
Auto-Vent Assembly and Installation Instructions ............................................................................... 73
Wire Grill Guard Roof Vent Assembly and Installation Instructions .................................................... 76
Chapter 9 Manway Cover Assembly .................................................................................................................. 79
Round Manway Cover ......................................................................................................................... 79
Chapter 10 Center Collar Details ........................................................................................................................ 80
Chapter 11 Roof Assembly ................................................................................................................................. 81
Roof Assembly for 18' through 24' Bins ............................................................................................. 83
Chapter 12 Support Ring Instructions ............................................................................................................... 86
Ring Instructions ................................................................................................................................ 86
Roof Support Ring Instructions .......................................................................................................... 87
30° Roof Panel Information ............................................................................................................... 89
Chapter 13 Accessories ...................................................................................................................................... 90
Wind Ring Requirements ................................................................................................................... 90
Installing Wind Rings ......................................................................................................................... 91
Chapter 14 Warranty ............................................................................................................................................ 95
4 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
1. Safety
DANGER
WARNING
CAUTION
NOTICE
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE is used to address practices not related to
personal injury.
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Safety Guidelines
This manual contains information that is important for you, the owner/operator, to know and understand.
This information relates to protecting personal safety and preventing equipment problems. It is the
responsibility of the owner/operator to inform anyone operating or working in the area of this equipment
of these safety guidelines. To help you recognize this information, we use the symbols that are defined
below. Please read the manual and pay attention to these sections. Failure to read this manual and its
safety instructions is a misuse of the equipment and may lead to serious injury or death.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 5
1. Safety
This product has sharp edges, which may cause serious injury. To avoid injury, handle
sharp edges with caution and always use proper protective clothing and equipment.
General Safety Statement
Our foremost concern is your safety and the safety of others associated with grain handling equipment.
This manual is to help you understand safe operating procedures and some problems that may be
encountered by the operator and other personnel.
As owner and/or operator, you are responsible to know what requirements, hazards, and precau tions exist
and inform all personnel associated with the equipment or in the area. Safety precautions may be required
from the personnel. Avoid any alterations to the equipment, which may produce a very dangerous
situation, where SERIOUS INJURY or DEATH may occur.
You should consider the location of the bin site relative to power line locations or electrical transmission
equipment. Contact your local power company to review your installation plan or for information
concerning required equipment clearance. Clearance of portable equipment that may be taken to the bin
site should also be reviewed and considered. Any electrical control equipment in contact with the bin
should be properly grounded and installed in accordance with National Electric Code provisions and other
local or national codes.
This product is intended for the use of grain storage only. Any other use is a misuse of the product.
Sidewall bundles or sheets must be stored in a safe manner. The safest method of storing sidewall
bundles is laying horizontally with the arch of the sheet upward, like a dome. Sidewall sheets stored on
edge must be secured so that they cannot fall over and cause injury. Use care when handling and moving
sidewall bundles.
Personnel operating or working around equipment should read this manual. This manual must be
delivered with equipment to its owner. Failure to read this manual and its safety instructions is a
misuse of the equipment.
6 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
1. Safety
Follow Safety Instructions
Carefully read all safety messages in this manual and
safety signs on your machine. Keep signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from the manufacturer.
Learn how to operate the machine and how to use controls
properly. Do not let anyone operate without instruction.
Keep your machinery in proper working condition.
Unauthorized modifications to the machine may impair
the function and/or safety and affect machine life.
If you do not understand any part of this manual or need
assistance, contact your dealer.
Read and Understand Manual
Practice Safe Maintenance
Understand service procedures before doing work. Keep area
clean and dry.
Never lubricate, service, or adjust machine while it is in operation.
Keep hands, feet and clothing away from rotating parts.
Keep all parts in good condition and properly installed. Fix
damage immediately . Replace worn or broken p arts. Remove any
built-up grease, oil, and debris.
Maintain Equipment
and Work Area
Safety Instructions
Our foremost concern is your safety and the safety of others associated with this equipment. We want to
keep you as a customer. This manual is to help you understand safe operating procedures and some
problems that may be encountered by the operator and other personnel.
As owner and/or operator, it is your responsibility to know what requirements, hazards, and precautions
exist, and to inform all personnel associated with the equipment or in the area. Safety precautions may be
required from the personnel. Avoid any alterations to the equipment. Such alterations may produce a very
dangerous situation where SERIOUS INJURY or DEATH may occur.
This equipment shall be installed in accordance with the current installation codes and applicable
regulations, which should be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 7
1. Safety
Prepare for Emergencies
Be prepared if fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,
hospital, and fire department near your telephone.
Keep Emergency Equipment
Quickly Accessible
Wear Protective Clothing
Wear close-fitting clothing and safety equipment appropriate
to the job.
Remove all jewelry.
Tie long hair up and back.
Wear safety glasses at all times to protect eyes from debris.
Wear gloves to protect your hands from sharp edges on
plastic or steel parts.
Wear steel-toed boots to help protect your feet from falling
debris. Tuck in any loose or dangling shoestrings.
A respirator may be needed to prevent breathing potentially
toxic fumes and dust.
Wear a hard hat to help protect your head.
Wear appropriate fall protection equipment when working at
elevations greater than six feet (6').
Eye Protection
Gloves
Steel-Toed Boots
Respirator
Hard Hat
Fall Protection
8 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
1. Safety
Safety Sign-Off Sheet
As a requirement of O.S.H.A., it is necessary for the employer to train the employee in the safe operating
and safety procedures for this equipment. This sign-off sheet is provided for your convenience and
personal record keeping. All unqualified persons are to stay out of the work area at all times. It is strongly
recommended that another qualified person who knows the shut down procedure be in the area in the
event of an emergency.
Date Employee Name Supervisor Name
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 9
2. Decals
Excessive vacuum (or pressure) may
damage roof. Use positive aeration
system. Make sure all roof vents are
open and unobstructed. Start roof
fans when supply fans are started.
Do not operate when conditions exist
that may cause roof vent icing.
DC-969
CAUTION
GSI Group, Inc. 217-226-4421
The manufacturer does not warrant any roof damage caused by excess ive v acuum or internal
pressure from fans or other air moving systems. Adequate ventilation and/or “makeup air”
devices should be provided for all powered air handling systems. The manufacturer does not
recommend the use of downward flow systems (suction). Severe roof damage can result from
any blockage of air passages. Running fans durin g high humidity/cold weather conditions can
cause air exhaust or intake ports to freeze.
Roof Damage Warning and Disclaimer
10 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
2. Decals
Rotating flighting will
kill or dismember.
Flowing material will
trap and suffocate.
Crusted material will
collapse and suffocate.
DANGER
Keep clear of all augers.
DO NOT ENTER this bin!
If you must enter the bin:
1. Shut off and lock out all power.
2. Use a safety harness and safety line.
3. Station another person outside the bin.
4. Avoid the center of the bin.
5. Wear proper breathing equipment or respirator.
Failure to heed these
warnings will result in
serious injury or death.
DC-GBC-1A
GSI GROUP, INC. 217-226-4421
ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and the roof manway cover. If a decal has been damaged or is missing in any of
these locations, contact the manufacturer for a free replacement decal.
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: 1-217-226-4421
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 11
2. Decals
WARNING
GSI GROUP, INC. 217-226-4421
1. Use CENTER FLOOR OUTLET ONLY until NO grain
remains above this outlet.
2. Side floor outlets to be used ONLY when above
condition is satisfied.
3. Lock all side floor outlets to avoid accidental
premature use.
4. See manufacturers instructions for proper use of
factory supplied sidedraw (wall) discharge systems.
UNLOADING INSTRUCTIONS:
Failure to heed these warnings
could result in serious injury, death,
structural damage or collapse of tank.
DC-GBC-2A
ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and the roof manway cover. If a decal has been damaged or is missing in any of
these locations, contact the manufacturer for a free replacement decal.
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: 1-217-226-4421
12 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Overfill Warning
WARNING
DO NOT OVERFILL BIN. Stored grain, although heaped in the center, should
be no higher than the roof eaves at the outer edge. (See Figure 2A.) Filling the bin
above this point creates excessive internal pressure and may cause swelling and
eventual roof failure. The overfilling of a bin may also cause the blockage of roof
vents and eaves, which will lead to a build-up of air pressure causing roof damage.
27°
Roof eave height
(Based on grain with an angle of repose of 27°.)
2. Decals
Figure 2A Maximum Bin Capacity
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 13
3. General Overview
General Information
General information, overview and instructions needed before performing work.
Read this manual carefully. This manual will provide instructions on building the sidewall and stiffeners.
You will also need to consult other instructions in building the tank.
These include, but may not be limited to:
1. A stiffener and sidewall gauge layout chart. If such a chart is not included with this manual,
contact GSI.
2. Roof instructions must be followed. Roof instructions are included in this manual.
3. Ladders, roof stairs, roof handrails and other products are covered by separate instruction manuals.
Consult the appropriate accessory manual. Inside ladder instructions are included in this manual.
4. Aeration systems and transitions are to be installed according to the instructions provided with the
system or transition.
5. It is critical that the anchor bolts are installed and spaced correctly.
Anchor Bolt Charts
Prior to setting any anchor bolts, you must be sure to have the correct anchor bolt placement. This is very
critical for stiffener alignment during bin erection.
NOTE: Refer to the proper chart to find the anchor chord dimensions that correspond to the bin that is
being built. (See Pages 15-19.)
Start with one anchor bolt and work from it to the left to locate one quarter of the anchor bolts the n to the
right to locate another quarter of the bolts. Working off of the last a nchor bolts in each quarte r, locate the
remaining anchor bolts in the last two (2) quarters.
14 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
3. General Overview
Anchor chord dimensions
Bolt radius
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 15
Figure 3A Anchor Bolt Chords for 18' Diameter 2 Post Bin
Diameter 18'
# of Anchors 12
Bolt Radius 9' - 4-3/16"
Chord 1 4' - 10-1/8"
Chord 2 9' - 4-1/4"
Chord 3 13' - 2-3/4"
3. General Overview
Anchor chord dimensions
Bolt radius
Figure 3B Anchor Bolt Chords for 21' Diameter 2 Post Bin
Diameter 21'
# of Anchors 14
Bolt Radius 10' - 10-1/8"
Chord 1 4' - 9-15/16"
Chord 2 9' - 4-15/16"
Chord 3 13' - 6-5/16"
16 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
3. General Overview
Anchor chord dimensions
Bolt radius
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 17
Figure 3C Anchor Bolt Chords for 21' Diameter 3 Post Bin
Diameter 21'
# of Anchors 21
Bolt Radius 10' - 10-1/8"
Chord 1 3' - 2-13/16"
Chord 2 6' - 4-3/4"
Chord 3 9' - 4-15/16"
Chord 4 12' - 2-5/8"
Chord 5 14' - 9-1/8"
3. General Overview
Anchor chord dimensions
Bolt radius
Figure 3D Anchor Bolt Chords for 24' Diameter 2 Post Bin
Diameter 24'
# of Anchors 16
Bolt Radius 12'-4"
Chord 1 4' - 9-13/16"
Chord 2 9' - 5-5/16"
Chord 3 13' - 8-1/2"
Chord 4 17' - 5-3/8"
18 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
3. General Overview
Anchor chord dimensions
Bolt radius
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 19
Figure 3E Anchor Bolt Chords for 24' Diameter 3 Post Bin
Diameter 24'
# of Anchors 24
Bolt Radius 12'-4"
Chord 1 3' - 2-11/16"
Chord 2 6' - 4-11/16"
Chord 3 9' - 5-5/16"
Chord 4 12' - 4-1/8"
Chord 5 15'-1/4"
Chord 6 17' - 5-3/8"
3. General Overview
Tools Required for Construction
General tools needed to perform this construction.
1. Combination wrench set 7/16" to 1"
2. Alignment punches 12" long
3. 1/2" Drive socket set and ratchet
4. Nail aprons or tool pouches to hold supplies
5. Gloves for hand protection
6. Tape measure
7. 1/2" Drive electric or pneumatic torque gun with variable impact capabilities
8. 1/2" Drive impact socket set
9. Lifting jacks
10. Center pole roof support
11. Step ladders
12. Large C-clamp or welding V-grip for clamping
NOTE: Quantities required will depend on the number of workers and size of the bin.
Guidelines for Proper Storage of Grain Bin Materials Prior
to Construction
Storage of the build materials prior to construction is important. Do not to allow moisture to remain
between sheets or panels.
Wet storage stain (rust) will develop when closely packed bundles of galvanized material, such as sidewall
and roof sheets, have moisture present. Inspect roof and sidewall bundles on arrival for any moisture. If
moisture is present, it must not be allowed to remain between the she ets. Separate the sheets or panels
immediately and wipe them down. Spray with a light oil or diesel fuel.
If possible, sidewall bundles, roof sheets and other closely packed galvanized materials should be stored
in a dry, climate controlled building. If outdoor storage is unavoidable, the materials should be stored so
that they are raised above the ground and vegetation. Any stacking an d spacing mat erials sho uld not be
corrosive or wet. Be sure to protect materials from the weather, but permit air movement around the
bundles if possible.
Storing roof bundles and sidewall sheets at a slight incline can also help minimize the presence of
moisture. Storing the bundles with the center of the dome up (like an arch) is one option for minimizing
moisture during storage. Sidewall bundles can also be stored on edge but must be secured so that they
do not fall over and cause injury.
If “white rust” or “wet storage stain” occurs, contact the manufacturer imme diately about ways to minimize
the adverse effect upon the galvanized coating.
20 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
3. General Overview
Guidelines for Construction Procedures and Lifting Jack Usage
The following procedure is a guideline when using the required lifting jack. Follow this general guideline
when lifting the bin as sidewalls are being installed.
NOTE: The roof and the top ring for odd ringed bins or the roof and 2 rings for even ringed bins, will be
installed prior to the beginning of bin lifting procedures. Refer to all other procedures on sidewall
and stiffener installation prior to the start of construction.
IMPORTANT: Begin building with the bin oriented for doors and material handling equipment t o be in the
correct position when bin construction is complete.
1. Consider the starting location of the bin, relative to the location of doors and other accessories.
Proper placement of lifting jacks in relationship to anchor bolts could make a difference in final
locations. Note that the sidewall sheets will be staggered.
2. The bin is lifted by the use of lifting jacks. Lifting jacks are used to slowly and evenly lift the bin during
construction. Lifting jacks must be properly sized and designed to carry all loads and job site
conditions associated with the construction of the bin.
The number of lifting jacks required is best determined by personal experience and expertise.
Factors such as bin size, jack design, construction conditions, support surface, etc., are all to be
considered when deciding how many to use. If in doubt, use one jack on every sheet. The lifting jack
must be adequate to carry all loads. Heavy duty jacks, generally hydraulic or electric powered in the
case of large bins, should be used for commercial installation. All jacks should be secured with
braces or otherwise maintained in a stable condition.
Lifting of the bins should not be done under windy conditions.
Follow the jack manufacturers recommendations on capacity and operations.
3. Lifting brackets should be attached through the stiffener bolt holes. Normally you will need to attach
to at least four (4) bolts per stiffener.
4. Raise the bin just high enough to assemble the next ring. When lifting the bin, all jacks must lift at
an equal rate. Monitor the lift to ensure even lifting is occurring.
5. To the inside of the first ring, bolt the next ring. Be sure to stagger the sheets and select the proper
gauge material.
6. Lower the bin onto the foundation after assembling and tightening bolts on the new ring or rings.
7. Attach stiffeners to the body sheets every two (2) tiers (on the external surface of the bin). You may
want to leave sheets loose to make the attachment of the stiffeners easier.
8. Now re-bolt the lifting brackets to the lowest ring in place thus far. Continue ring additions by
repeating Step 5 and Step 6.
9. Add inside and outside ladders as you continue to raise the bin. (Refer to the manual supplied with
the ladder).
10. Lower the tank and secure to the foundation before leaving the job site.
11. At the completion of the tank, set stiffeners over the anchor bolts and measure the tank to ensure it
is in a round condition. Consult with GSI for questions on tolerances.
NOTE: For 2 ring doors or vehicle traffic doors, special placement issues may apply. Consult the special
instructions provided with 2 ring doors or vehicle traffic doors for these options.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 21
3. General Overview
Guidelines for Placement of the Decal Sidewall Sheet
Use the following as a general guideline the proper decal sheet placement.
NOTE: Refer to the stiffener to sidewall attachment detail and specific gauge sheet for the bin. The decal
sheets are located in the third ring from the top. They are to be spaced evenly around the diameter
of the bin.
Figure 3F 2 Post bin with two (2) rows of stiffeners used on each sidewall sheet.
Figure 3G 3 Post bin with three (3) rows of stiffeners used on each sidewall sheet.
NOTE: Dashed lines represent stiffener locations.
22 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
4. Bolt and Nut Usage
Hardware Requirements for Sidewalls and Stiffeners
Bolt and Nut Pairings
This chart lists the correct nut to use with each size of bolt.
Nut Part # Nut Size Type Hex or Flanged Bolt Size Bolt Part #
S-396 5/16" YDP Hex
S-3611 5/16" YDP Flanged 5/16" x 1" S-10260
S-456 3/8" YDP Hex
S-9426 3/8" JS Flanged
S-9281 7/16" JS Hex
S-10251 7/16" JS Flanged (Special) 7/16" x 1-1/4" S-10250
5/16" x 3/4" S-275
5/16" x 1-1/4" S-277
3/8" x 1" S-7487
3/8" x 1-1/2" S-7488
3/8" x 2" S-10165
3/8" x 1" S-7485
3/8" x 1-1/2" S-7488
7/16" x 1-1/2" S-10262
7/16" x 2" S-9389
7/16" x 3-1/4" S-10261
Hardware for 2 Post Sidewall Sheets on Bins 18' to 60' in Diameter
Refer to the chart for hardware requirements for 2 post sidewall sheet connections on bins 18' to
60' diameter.
Gauge
20 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (24) 3/8" x 1" (2)
19 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (24) 3/8" x 1" (2)
18 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (24) 3/8" x 1" (2)
17 3/8" x 1" (10) 3/8" x 1" (36) 3/8" x 1" (24) 3/8" x 1" (2)
16 3/8" x 1" (10) 3/8" x 1" (36) 3/8" x 1" (24) 3/8" x 1" (2)
15 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
14 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
13 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
12 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
11 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
10 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (24) 3/8" x 1" (2)
9 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
8 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
6 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
5 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
1 1L 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
10L 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48 ) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (2)
9L 3/8" x 1-1/2" (24) 7/16" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (6)
8L 3/8" x 1-1/2" (24) 7/16" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (6)
Horizontal Seam
Bolt Size (Quantity)
Vertical Seam Bolt
Size (Quantity)
Stiffener to Sidewall
Bolt Size (Quantity)
Overlap Seam Bolt
Size (Quantity)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 23
4. Bolt and Nut Usage
Hardware for 3 Post Sidewall Sheets on Bins that are 18' to 90' Diameter and
105' Bins that are 27 Rings and Shorter
Refer to the chart for the hardware requirements for 3 post sidewall sheet connections on bins
18' to 90' diameter. Refer to the chart for the hardware requirements for 3 post sidewall sheet conn ections
on bins 105' diameter that are 27 rings and shorter.
Gauge
20 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (12) 3/8" x 1" (2)
19 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (12) 3/8" x 1" (2)
18 3/8" x 1" (10) 3/8" x 1" (24) 3/8" x 1" (12) 3/8" x 1" (2)
17 3/8" x 1" (10) 3/8" x 1" (36) 3/8" x 1" (12) 3/8" x 1" (2)
16 3/8" x 1" (10) 3/8" x 1" (36) 3/8" x 1" (12) 3/8" x 1" (2)
15 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
14 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
13 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
12 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
11 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
10 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1" (12) 3/8" x 1" (2)
9 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
8 3/8" x 1" (22) 3/8" x 1" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
Horizontal Seam
Bolt Size (Quantity)
Vertical Seam Bolt
Size (Quantity)
Stiffener to Sidewall
Bolt Size (Quantity)
Overlap Seam Bolt
Size (Quantity)
6 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
5 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
11L 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
10L 3/8" x 1-1/2" (22) 3/8" x 1-1/2" (48) 3/8" x 1-1/2" (12) 3/8" x 1-1/2" (2)
9L 3/8" x 1-1/2" (24) 7/16" x 1-1/2" (48) 3/8" x 1-1/2" (24) 3/8" x 1-1/2" (6)
8L 3/8" x 1-1/2" (24) 7/16" x 1-1/2" (48) 3/8" x 1-1/ 2" (24 ) 3/8" x 1-1/2" (6)
24 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
4. Bolt and Nut Usage
Under no condition shall any other bolts be substituted for those supplied by GSI.
CAUTION
Grade 2 Bolts
Grade 2 bolts are designated with a plain head and are not used in GSI grain bins.
Grade 5 Bolts
Grade 5 bolts are designated by three (3) slash marks on the head. All 5/16" diameter
bolts are to be grade 5 or higher.
Grade 8 Bolts
Grade 8 bolts are designated by six (6) slash marks evenly spaced out around the head
of the bolt. All 3/8", 7/16" and 1/2" diameter bolts are to be grade 8 or grade 8.2.
Grade 8.2 Bolts
Grade 8.2 bolts are designated by six (6) slash marks on the head in a sunrise pattern.
All 3/8", 7/16" and 1/2" diameter bolts are to be grade 8 or grade 8.2.
Bolt Torque Specifications
The specification torque table below will help the installer determine how tight a specific bolt must be.
A bolt that has been over tightened can be just as dangerous as one that has not been t ightened enough.
IMPORTANT: Bolts should not be tightened in excess of the torque specifications chart listed below.
Bolt Minimum Torque Maximum Torque
Sealing Joints
(Joints with
Sealing Washers)
ft./lbs. N-m ft./lbs. N-m
5/16"-18 JS Grade 8 with Seal 20 27 - - 25 34 - -
3/8"-16 JS Grade 8 with Seal 30 41 - - 35 47 - 7/16"-14 JS Grade 8 with Seal 50 68 - - 60 81 - 3/8"-16 YDP Grade 8 Flanged - - 45 61 - - 55 75
7/16"-14 YDP Grade 8 Flanged - - 85 115 - - 95 129
1/2"-13 YDP Grade 8 Flanged - - 125 169 - - 140 189
Structural Joints
(Joints without any
Sealing Washers)
Sealing Joints
(Joints with
Sealing Washers)
ft./lbs. N-m ft./lbs. N-m
Structural Joints
(Joints without any
Sealing washers)
Identifying Bolt Grades
Bolts are identified by grade (or hardness), the grade can be identifie d by the markings on the head of the
bolt. These markings will be in the form of slash marks and patterns. Use the following as a guide to
determine the correct bolt grade.
NOTE: Refer to 2.66" commercial tank bolting requirements for complete bolt usage.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 25
4. Bolt and Nut Usage
Bolt (S-275) is used in the following locations:
1. Use in accessories.
2. The color of bucket lid is dark blue.
A 0.945" (2.40 cm) C Grade 5
B 0.750" (1.90 cm)
D Grade 5
Bolt (S-10260) is used in the following locations:
1. Use to connect roof panels together where they overlap.
2. Use when connecting eave angle to sidewall sheet.
3. The color of the bucket lid is lime green.
4. Use to connect eave clip to sidewall sheet on bins that are
48' diameter and smaller.
5. Use to attach roof panels to flashing on bins that are
48' diameter and smaller.
A 1.300" (3.30 cm) C Grade 8
B 1.000" (2.54 cm)
D Grade 8.2
Bolt Identification
Use the following information to identify the bolts and where each must be used during installation.
Bolt (S-275)
An S-275 is a 5/16" x 3/4" YDP bolt that is pre-assembled with a sealing washer.
Bolt (A-10260)
An S-10260 is a 5/16" x 1" JS bolt that is pre-assembled with a sealing washer.
26 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
4. Bolt and Nut Usage
Bolt (S-277) is used in the following locations:
1. Used in accessories.
2. The color of the bucket lid is black.
A 1.445" (3.67 cm) C Grade 5
B 1.250" (3.17 cm)
DGrade 5
Bolt (S-7487) is used in the following locations:
1. Use in all sidewall connections for 20 gauge through
10 gauge sidewall to sidewall sheets.
2. Use for horizontal and vertical seam connections for
9 gauge through 8 gauge sidewall sheets.
3. Use when attaching base angle to sidewall sheet on flat
bottom bins.
4. The color of bucket lid is grey.
NOTE: Do not use to splice the stiffeners together on the
flanges where they connect to each other or the
splice plates.
A 1.350" (3.43 cm) C Grade 8
B 1.000" (2.54 cm)
D Grade 8.2
Bolt (S-277)
An S-277 is a 5/16" x 1-1/4" YDP bolt pre-assembled with a sealing washer.
Bolt (S-7487)
An S-7487 is a 3/8" x 1" JS bolt that is pre-assembled with a sealing washer.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 27
4. Bolt and Nut Usage
Bolt (S-7485) is used in the following locations:
1. Use to splice the stiffeners together on the flanges.
(A flange nut is used on the nut side of the connection.)
2. Use to splice the laminated stiffeners together. (A flange
nut is used on the nut side of the connection.)
3. The color of bucket lid is light green.
A 1.350" (3.43 cm) C Grade 8
B 1.000" (2.54 cm)
D Grade 8.2
Bolt (S-7488) is used in the following locations:
1. Use in all stiffener to sidewall and overlap connections
where the sidewall is 9 gauge or thicker.
2. Use in vertical and horizontal seams on sidewall that is
6 gauge or thicker.
3. The color of the bucket lid is orange.
NOTE: Do not use in flanges where the splice plate bolts
to the stiffeners. Sealing washers should not be
used for these connections.
A 1.850" (4.70 cm) C Grade 8
B 1.500" (3.81 cm)
D Grade 8.2
Bolt (S-7485)
An S-7485 is a 3/8" x 1" JS hex bolt with flanged head and without a sealing washer.
Bolt (S-7488)
An S-7488 is a 3/8" x 1-1/2" JS bolt that is pre-assembled with a sealing washer.
28 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
4. Bolt and Nut Usage
Bolt (S-7486) is used in the following locations:
1. Use in special seismic tanks.
2. The color of the bucket lid is dark brown.
A 1.850" (4.70 cm)
B 1.500" (3.81 cm)
C Grade 8
DGrade 8.2
Bolt (S-10250) is used in the following locations:
1. Use in bins 54' and 60' in diameter.
2. Use in eave bracket to inside stiffener connection.
3. Use in tension plate to eave bracket connection.
4. Use in rafter clip to rafter connection.
5. Use in laminated purlins.
6. Use in purlin clip to rafter and purlin clip to purlin
connections.
7. Use in X-brace to rafter connection.
8. Use in center collar splice connection.
9. Use in center collar channel clip to center collar.
10. Use in rafter to center collar and rafter to eave bracket
connections.
11. Use in center collar channel to clip.
12. Delivered in a box, not a bucket.
A 1.542" (3.92 cm) C Grade 8
B 1.250" (3.18 cm)
D Grade 8.2
Bolt (S-7486)
An S-7486 is a 3/8" x 1-1/2" JS hex bolt with a flanged head without a sealing washer.
Bolt (S-10250)
An S-10250 is a 7/16" x 1-1/4" JS bolt that is pre-assembled with a sealing washer.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 29
4. Bolt and Nut Usage
Bolt (S-10261) is used in the following locations:
1. Use in wind ring splice and over pipe connections.
2. Lid color of bucket is natural (clear).
A 3.645" (9.26 cm)
B 3.250" (8.26 cm)
C Grade 8
D Grade 8.2
Bolt (S-10261)
An S-10261 is a 7/16" x 3-1/4" JS bolt that is pre-assembled with a sealing washer.
30 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
4. Bolt and Nut Usage
Color Chart for Bin Hardware Bucket Lids
For ease of identification, hardware is separated and identified by buckets with color coded lids. Use the
following chart to help with the correct placement of hardware.
Part # Color
S-275 Dark Blue 1500 5/16" x 3/4" YDP Bolt pre-assembled with sealing washer
S-10260 Lime Green 1250 5/16" x 1" YDP Bolt pre-assembled with sealing washer
S-277 Black 1000 5/16" x 1-1/4" JS Bolt pre-assembled with sealing washer
S-396 Red 5000 5/16" JS Hex nut
S-3611 NA NA In Box 5/16" YDP Flange nut
S-7487 Grey 850 3/8" x 1" JS Bolt pre-assembled with sealing washer
S-7485 Light Green 1000 3/8" x 1" Flanged JS bolt without sealing washer
S-7488 Orange 650 3/8" x 1-1/2" JS Bolt pre-assembled with sealing washer
S-7486 Dark Brown 700 3/8" x 1-1/2" Flanged JS bolt without sealing washer
S-10165 Light Blue 500 3/8" x 2" JS Bolt pre-assembled with sealing washer
Bucket
Count
Lid Color Description
S-7489 Yellow 4000 3/8" JS Hex nu t
S-9426 Dark Purple 2500 3/8" JS Flanged nut
S-10250 NA NA In Box 7/16" x 1-1/4" YDP Flanged bolt
S-10262 White 500 7/16" x 1-1/2" Flanged JS bolt pre-assembled with sealing washer
S-9389 Light Purple 350 7/16" x 2" Full threaded JS bolt pre-assembled with sealing washer
S-10134 Dark Green 300 7/16" x 2-1/2" JS Bolt pre-assembled with sealing washer
S-10261 Natural (Clear) 200 7/16" x 3-1/4" Flanged JS bolt pre-assembled with sealing washer
S-9281 Fire Orange 1500 7/16" JS Hex nut
S-8479 Light Brown 800 7/16" YDP Special recessed nut
S-10251 NA NA In Box 7/16" YDP Un-serrated flange nut
S-10252 NA NA In Box 1/2" x 1-3/4" YDP Flange bolt
S-10253 NA NA In Box 1/2" YDP Un-serrated flange nut
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 31
5. Assembling Sidewall Sheets
Color Codes for Sidewall Gauge Identification
Use this chart to interpret the color code painted on the corners of the sidewall sheets.
Color Codes for Sidewall Gauges
Sidewall Gauge Color Code
20 Red
19 Black and Yellow
18 Orange
17 Light Blue and Pink
16 Blue
15 Red and Brown
14 Green
13 Dark Blue and Yellow
12 Black
11 Pink
10 Light Blue
9 Dark Blue and Orange
Stripe Colors for Special Sidewall Characteristics
Type of Sidewall Stripe Color
BFT Blue
Laminated Gold
Hex Pattern Ochre
Special Galvanized 115 Fluorescent Red and Orange
Special Galvanized 140 Fluorescent Pink
Special Galvanized 160 Fluorescent Red and Pink
NOTE: Stripe colors are located in the middle of each
side of the bundle.
8 Yellow
6White
5 Fluorescent Green
32 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
5. Assembling Sidewall Sheets
Caulking Detail for Standard (Non-Laminated) Sheets
To keep out moisture from overlapping the sheets, it is necessary to apply caulk to each sheet prior
to installing.
NOTE: Always assemble the sidewall sheets with the overlap in the same direction.
1. Apply a strip of caulk near the outside edge of the outer sheet and between the outer two (2) rows
of bolts (A), then apply a strip of caulk 10" (25.4 cm) long along th e horizo ntal sea ms (B), as shown
in Figure 5A.
Figure 5A Standard and Quad Punched Sidewall Sheets as Viewed from the Outside
Ref # Description
A Vertical Strip of Caulk
B 10" (25.4 cm) Horizontal Strip of Caulk
2. Before bolting the next ring into place, apply one 10" strip of caulk (C) on the front of the underlapped
sheet at each joint.
3. Also, place a 10" (25.4 cm) strip of caulk (D) along the lower horizontal edge of the lapping
sheet at every vertical seam. This will fill the space that occurs between the holes caused by the
overlapping sheets. (See Figure 5B on Page 34.)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 33
5. Assembling Sidewall Sheets
Figure 5B Caulking Detail as Viewed from Inside of the Bin
Ref # Description
C 10" (25.4 cm) Strip of Caulk
D 10" (25.4 cm) Strip of Caulk
4. Use the supplied tube caulk to fill the larger gaps that occur with heavier gauges and laminated
gauges. See Caulking Detail for Laminated Quad Pattern Sheets on Page 35 for details about caulk
laminated sidewall sheets.
34 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
5. Assembling Sidewall Sheets
Caulking Detail for Laminated Quad Pattern Sheets
To keep out moisture from overlapping the sheets, it is necessary to apply caulk to each sheet prior
to installing.
Caulking and Assembling the Individual Sidewall Sheets
Each sidewall sheet must be layered and caulked prior to assembling sidewall sheet seams together.
Figure 5C Laminated Quad Punched Sidewall Panel View from Outside of the Bin
Ref # Description
A Strip of Caulking
B 12" (30.4 cm) Horizontal Strip of Caulking
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 35
5. Assembling Sidewall Sheets
Figure 5D Laminated Figurate Punched Sidewall Sheets View from Outside of the Bin
Ref # Description
A Strip of Caul ki n g
B 12" (30.4 cm) Horizontal Strip of Caulking
Figure 5E Caulking Between Laminated Figurate Pattern Sheets
Ref # Description
B 12" (30.4 cm) Horizontal Strip of Caulking
36 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
5. Assembling Sidewall Sheets
1. When assembling two (2) assembled laminated sheets to each other, apply a strip of caulk (A) near
the outside edge of the outer sheet, between the outer two (2) rows of bolts and outside the last row
of bolts. (See Figure 5C on Page 35 and Figure 5D on Page 36.)
2. Place a strip of caulk (B) 12" (30.4 cm) long to each the horizontal seams. (See Figure 5F.)
NOTE: Before bolting the next ring into place, apply a strip of caulk 12" (30.4 cm) long on the front
of the under lapped sheet at each joint.
3. Also, a 12" (30.4 cm) strip of caulk is to be placed along the lower horizontal edge of the lapping
sheet at the vertical seam. This will fill the space that occurs between the holes caused by the
overlapping sheets.
When assembling two (2) sheets to make a laminated sheet assembly (C), apply a row of caulk all around
the vertical seam. (See Figure 5F.)
Use the supplied tube caulk to fill the larger gaps that occur with heavier gauges and laminated sheets.
Figure 5F Caulking Detail for Assembled Laminate Sidewall Sheets
Ref # Description
B 12" (30.4 cm) Horizontal Strip of Caulk
C Laminated Sheet Detail (Caulk Not Shown)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 37
6. Stiffeners
Stiffener Part Number Description
Part numbers are printed on the end of each stiffener with the last two (2) numbers designating the gauge
of the material.
Example: CTS-206314 will be printed on a 14 gauge, standard 2 ring stiffener. If the stiffener was 8 gauge,
it would change the part number to CTS-206308.
The part numbers in the following tables use an “XX” at the end of the number to represent the gauge of
the material.
Color Codes for Stiffener Gauge Identification
Use these charts to interpret the color code painted on the ends of the stiffeners.
Color Codes for Stiffener Gauges
Sidewall Gauge Color Code
0 No Color (Zinc)
2Ochre
5 Fluorescent Green
6White
8 Yellow
9 Dark Blue and Orange
10 Light Blue
11 Pink
12 Black
13 Dark Blue and Yellow
14 Dark Green
15 Red and Brown
Stripe Color Codes for Stiffener Gauges
Stiffener Type Stripe Color
Base Stiffener Red
Back (Laminated) Dark Green
Insert (Laminated) Gold
Close Punched Light Blue
Special Galvanized 115 Fluorescent Red and Orange
Special Galvanized 140 Fluorescent Pink
Special Galvanized 165
12 Bolt Pattern Stiffener Brown
NOTE: Extra colored stripes will be centered on the
gauge color. If more than one color of stripe is needed,
they will be painted next to each other and centered
on the gauge color.
Fluorescent Pink and
Fluorescent Orange
16 Dark Blue
17 Light Blue and Pink
18 Orange
38 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Standard Stiffeners
Use the following information to determine the differences between the types of standard 2 ring stiffeners.
(See Figure 6A.)
Figure 6A Standard Stiffeners
Ref # Part # Description Length Available Gauges
A CTS-2063XX 2 Ring Stiffener 63.938" (162 cm) 10-14
B CTS-2064XX 2 Ring Stiffener 63.938" (162 cm) 15-16
C CTS-2073XX 2 Ring Stiffener (Close-Punch) 63.938" (162 cm) 2-10, 12, 14
D CTS-2075XX 2 Ring Stiffener (Close-Punch) 63.938" (162 cm) 16
E CTS-2079XX 2 Ring Laminated Stiffener (Close-Punch) 63.938" (162 cm) 2-5
F CTS-20 81XX 2 Ring Insert (Close-Punch) 63.938" (162 cm) 10-14
G CTS-2137XX 2 Ring Laminate Stiffener (Close-Punch) 63.938" (162 cm) 2
H CTS-2138XX 2 Ring Insert (Close-Punch) 63.938" (162 cm) 2-14
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 39
6. Stiffeners
Top Stiffeners
Use the following information to determine the differences between the three (3) types of top stiffeners.
(See Figure 6B.)
Figure 6B Images of the Top Stiffeners
Ref # Part # Description Length Available Gauges
A CTS-2069XX Inside Stiffener (for Roof) 23.938" (56 cm) 2-8, 10, 12, 14
B CTS-21 18XX 1 Ring Top Stiffener (Close-Punch) 21.938" (56 cm) 16
C CTS-2111XX 2 Ring Top Stiffener 53.938" (137 cm) 15-16
D CTS-2116XX 2 Ring Top Stiffener (Close-Punch) 53.938" (137 cm) 16
40 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Stiffeners Splice
Use the following information to determine the gauge of the splice needed to connect the stiffeners.
(See Figure 6C.)
Figure 6C Stiffener Splice
Ref # Part # Description Length Available Gauges
A CTS–2091XX Stiffener Splice 10" (25.4 cm) 8, 10, 12, 14
Use the following chart to determine the gauge of the splice, which is determined by the gauge of the
stiffeners that are being connected. If connecting a heavier gauge to a lighter gauge stiffener, always use
the heavier gauge splice for the 13 to 12, 8 to 6 and 2 to 0 gauge connections.
For example: If connecting a 13 gauge stiffener to a 12 gauge stiffener, use the 12 gauge splice. If
connecting an 8 gauge stiffener to a 6 gauge stiffener, use the 10 gauge splice. If connecting a 2 gauge
stiffener to a 0 gauge stiffener, use the 8 gauge splice.
Splice Usage
Stiffener Gauge
8 Gauge 10 Gauge 12 Gauge 14 Gauge
18 X
17 X
16 X
15 X
14 X
13 X
12 X
11 X
10 X
9X
8 X
Splice Gauge
6X
5 X
2X
0 X
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 41
6. Stiffeners
Base Stiffeners
Use the following information to determine the differences between the base stiffeners. (See Figure 6D.)
Figure 6D Images of the Base Stiffeners
Ref # Part # Description Length Available Gauges
A CTS-2119XX Base Stiffener 72.094" (183 cm) 2-8
B CTS-2123XX Base Stiffener 72.430" (184 cm) 9, 10, 12, 14, 16
C CTS-2115XX Base Stiffener 72.094" (183 cm) 10, 12 , 14, 16
D CTS-2114XX Laminated Base Stiffener 72.061" (183 cm) 2-5
E CTS-2113XX Base Insert 66.438" (169 cm) 2-8, 10, 12, 14
F CTS-213 3XX Laminated Base Stiffener 72.088" (183 cm) 2
G CTS-2134XX Base Insert 71.775" (182 cm) 10, 12, 14
H CTS-2135XX Laminated Base Stiffener 71.775" (182 cm) 2
I CTS-2136XX Base Insert 71.775" (182 cm) 2-8
42 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Base Boots
Use the following information to determine the differences between the base boots. (See Figure 6E.)
Figure 6E Images of the Base Boots
Ref # Part # Description Height Base Plate Size
A CTS–2121XX
BCTS-2110XX
C CTS-2109XX
D CTS-2131XX
Base Boot Weldment for 16 Through
9 Gauge Base Stiffeners
Base Boot Weldment for 8 Through a
Laminated 2 Gauge with an 11 Gauge Insert
Base Boot for 2 Gauge Laminated Base
Stiffeners with Inserts from 10 Through 2 Gauges
Base boot Weldment for 2+8 to
2+2 Base Stiffeners
11.391" (29 cm)
11.391" (29 cm)
11.391" (29 cm)
11.391" (29 cm)
6" x 9" x 3/8"
(15 cm x 23 cm x 0.95 cm)
6" x 9" x 3/4"
(15 cm x 23 cm x 1.90 cm)
8" x 10" x 3/4"
(20 cm x 25 cm x 1.90 cm)
8" x 10" x 1-1/2"
(20 cm x 25 cm x 3.81 cm)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 43
6. Stiffeners
Close-Punch Connection for a 1 Ring Top Stiffener (16 Gauge) and
a 2 Ring Stiffener (16 Gauge)
Refer to the following information for a close-punch connection of a 1 ring top stiffener (CTS-2118XX) to
a 2 ring stiffener (CTS-2075XX). (See Figure 6F.)
Figure 6F 1 Ring Top Stiffener (16 Gauge) and a 2 Ring Stiffener (16 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2118XX 1 Ring Top Stiffener
B CTS-2075XX 2 Ring Stiffener
C CTS-2091XX Sp lice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
44 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Top Stiffener to a 2 Ring Stiffener (15-16 Gauge) Connection
Refer to the following information when connecting a 2 ring top stiffener (CTS-2111XX) to a 2 rin g stiffener
(CTS-2064XX). (See Figure 6G.)
Figure 6G 2 Ring Top Stiffener to a 2 Ring Stiffener (15-16 Gauge) Connection
Ref # Part # Description
A CTS-2111XX 2 Ring Top Stiffener
B CTS-2064XX 2 Ring Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 45
6. Stiffeners
Close-Punch Connection for a 2 Ring Top Stiffener to a 2 Ring
Stiffener (16 Gauge)
Refer to the following information for a close-punch connection of a 2 ring top stiffener (CTS-2116XX) to
a 2 ring stiffener (CTS-2075XX). (See Figure 6H.)
Figure 6H 2 Ring Top Stiffener to a 2 Ring Stiffener (16 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2116XX 2 Ring Top Stiffener
B CTS-2075XX 2 Ring Stiffener
C CTS-2091XX Sp lice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
46 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Stiffener (15-16 Gauge) to a 2 Ring Stiffener (15-16 Gauge)
Connection
Refer to the following information when connecting a 2 ring stiffener (CTS-2064XX) to a 2 ring stiffener
(CTS-2064XX). (See Figure 6I.)
Figure 6I 2 Ring Stiffener (15-16 Gauge) to a 2 Ring Stiffener (15-16 Gauge) Connection
Ref # Part # Description
A CTS-2064XX 2 Ring Stiffener
B CTS-2064XX 2 Ring Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 47
6. Stiffeners
Close-Punch Connection for a 2 Ring Stiffener (16 Gauge) to a
2 Ring Stiffener (16 Gauge)
Refer to the following information for a close-punch connection of a 2 ring stiffener (CTS-2075XX) to a
2 ring stiffener (CTS-2075XX). (See Figure 6J.)
Figure 6J 2 Ring Stiffener (16 Gauge) to a 2 Ring Stiffener (16 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2075XX 2 Ring Stiffener
B CTS-2075XX 2 Ring Stiffener
C CTS-2091XX Sp lice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
48 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (0-14 Gauge)
Connection
Refer to the following information when connecting a 2 ring stiffener (CTS-2063XX) to a 2 ring stiffener
(CTS-2063XX). (See Figure 6K.)
Figure 6K 2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (0-14 Gauge) Connection
Ref # Part # Description
A CTS-2063XX 2 Ring Stiffener
B CTS-2063XX 2 Ring Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 49
6. Stiffeners
Close-Punch Connection for a 2 Ring Stiffener (0-14 Gauge) to a
2 Ring Stiffener (0-14 Gauge)
Refer to the following information for a close-punch connection of a 2 ring stiffener (CTS-2073XX) to a
2 ring stiffener (CTS-2073XX). (See Figure 6L.)
Figure 6L 2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (0-14 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2073XX 2 Ring Stiffener
B CTS-2073XX 2 Ring Stiffener
C CTS-2091XX Sp lice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
50 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Stiffener (0-14 Gauge) to a Close-Punch Base Stiffener
(2-8 Gauge) Connection
Refer to the following information when connecting a 2 ring stiffener (CTS-2063XX) to a close-punch
2 ring stiffener (CTS-2119XX). (See Figure 6M.)
Figure 6M 2 Ring Stiffener (0-14 Gauge) to a Close-Punch 2 Ring Stiffener (2-8 Gauge) Connection
Ref # Part # Description
A CTS-2063XX 2 Ring Stiffener
B CTS-2119XX Close-Punch 2 Ring Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 51
6. Stiffeners
Close-Punch Connection for a 2 Ring Stiffener (0-14 Gauge) to a
Base Stiffener (2-8 Gauge)
Refer to the following information when connecting a 2 ring stiffener (CTS-2073XX) to a base stiffener
(CTS-2119XX). (See Figure 6N.)
Figure 6N 2 Ring Stiffener (0-14 Gauge) to a 2 Ring Stiffener (2-8 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2073XX Close-Punch 2 Ring Stiffener
B CTS-2119XX Close-Punch Base Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 Post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
52 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Stiffener (0-14 Gauge) to a Base Stiffener (10-16 Gauge)
Connection
Refer to the following information when connecting a 2 ring stiffener (CTS-2063XX) to a base stiffener
(CTS-2123XX). (See Figure 6O.)
Figure 6O 2 Ring Stiffener (0-14 Gauge) to a Base Stiffener (10-16 Gauge) Connection
Ref # Part # Description
A CTS-2063XX 2 Ring Stiffener
B CTS-2123XX Base Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 53
6. Stiffeners
2 Ring Stiffener (2-14 Gauge) to a Base Stiffener (10-16 Gauge)
Connection
Refer to the following information for a close-punch connection of a 2 ring stiffener (CTS-2073XX) to a
base stiffener (CTS-2115XX). (See Figure 6P.)
Figure 6P 2 Ring Stiffener (2-14 Gauge) to a Base Stiffener (10-16 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2073XX Close-Punch 2 Ring Stiffener
B CTS-21 1 5XX Close-Punch Base Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
54 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
2 Ring Stiffener (15-16 Gauge) to a Base Stiffener (10-16 Gauge)
Connection
Refer to the following information when connecting a 2 ring stiffener (CTS-2064XX) to a base stiffener
(CTS-2123XX). (See Figure 6Q.)
Figure 6Q 2 Ring Stiffener (15-16 Gauge) to a Base Stiffener (10-16 Gauge) Connection
Ref # Part # Description
A CTS-2064XX 2 Ring Stiffener
B CTS-2123XX Base Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 55
6. Stiffeners
Close-Punch Connection for a 2 Ring Stiffener (16 Gauge) to a
Base Stiffener (10-16 Gauge)
Refer to the following information for a close-punch connection of a 2 ring stiffener (CTS-2075XX) to a
base stiffener (CTS-2115XX). (See Figure 6R.)
Figure 6R 2 Ring Stiffener (16 Gauge) to a Base Stiffener (10-16 Gauge) Close-Punch Connection
Ref # Part # Description
A CTS-2075XX Close-Punch 2 Ring Stiffener
B CTS-2115XX Close-Punch Base Stiffener
C CTS-2091XX Splice
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
56 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Close-Punch 2 Ring Stiffener (2-14 Gauge) to a Laminated Stiffener
(2 Gauge) with an Insert (10-14 Gauge)
Refer to the following information for a close-punch connections with a 2 ring stiffener (CTS-2073XX) to a
laminated stiffener (CTS-2114XX) and insert (CTS-2113XX). (See Figure 6S.)
Figure 6S Close-Punch 2 Ring Stiffener to a Laminated Stiffener with an Insert
Ref # Part # Description
A CTS-2073XX Close-Punch 2 Ring Stiffener
B CTS-2114XX Close-Punch Laminated Stiffener
C CTS-2113XX Insert
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 57
6. Stiffeners
Close-Punch Laminated Stiffeners (2 Gauge) with Inserts
(10-14 Gauge)
Refer to the following information for a close-punch connect ion of a laminated stiffe ner (CTS-2079XX) to
a laminated stiffener (CTS-2081XX). (See Figure 6T.)
Figure 6T Close-Punch Laminated Stiffeners with Inserts
Ref # Part # Description
A CTS-2079XX Close-Punch Laminated Stiffener
B CTS-2081XX Close-Punch Insert
C S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
58 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Close-Punch Laminated Stiffener (2 Gauge) with an Insert
(10-14 Gauge) to a Laminated Base Stiffener (2-5 Gauge) with a
Base Insert (2-14 Gauge)
Refer to the following information for a close-punch connection of a 2 ring stiffener (CTS-2079XX and
CTS-2081XX) to a laminated base stiffener and insert (CTS-2114XX and CTS-2113XX). (See Figure 6U.)
Figure 6U Close-Punch Laminated Stiffener with an Insert to a Laminated Base Stiffener with a Base Insert
Ref # Part # Description
A CTS-2079XX Close-Punch Laminated Stiffener
B CTS-2081XX Close-Punch Insert
C CTS-2114XX Close-Punch Laminated Base Stiffener
D CTS-2113XX Close-Punch Base Insert
E S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
F S-9426 Flange Nut 3/8"-16 JS
G Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 59
6. Stiffeners
Base Stiffener (10-16 Gauge) to a Base Boot Connection
Refer to the following information when connecting a base stiffener (CTS-2123XX) to a base boot
(CTS-2121XX). (See Figure 6V.)
Figure 6V Base Stiffener (10-16 Gauge) to a Base Boot Connection
Ref # Part # Description
A CTS-2123XX Base Stiffener
B CTS-2121XX Base Boot
C S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
60 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Close-Punch Connection for a Base Stiffener (10-16 Gauge) to a
Base Boot
Refer to the following information for a close-punch connection for a base stiffener (CTS-2115XX) to a
base boot (CTS-2121XX). (See Figure 6W.)
Figure 6W Base Stiffener (10-16 Gauge) to a Base Boot Close-Punch Connection
Ref # Part # Description
A CTS-2115XX Close-Punch Base Stiffener
B CTS-2121XX Close-Punch Base Boot
C S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 61
6. Stiffeners
Close-Punch Connection for a Base Stiffener (2+2 Gauge - 8 Gauge)
to a Base Boot
Refer to the following information for a close-punch connection for a base stiffener (CTS-2119XX) to a
base boot (CTS-2110XX). (See Figure 6X.)
Figure 6X Base Stiffener (2+2 Gauge - 8 Gauge) to a Base Boot Close-Punch Connection
Ref # Part # Description
A CTS-2119XX Close-Punch Base Stiffener
B CTS-2110XX Close-Punch Base Boot
C S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
62 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Close-Punch Laminated Base Stiffener (2 Gauge) with Insert
(2+14 to 2+10 Gauge) to a Base Boot
Refer to the following information when connecting a close-punch laminated base stiffener
(CTS-2114XX) to a base boot (CTS-2109XX or CTS-2110XX). (See Figure 6Y.)
Figure 6Y Close-Punch Laminated Base Stiffener to a Base Boot
Ref # Part # Description
A CTS-2114XX Close-Punch Laminated Base Stiffener
B CTS-2113XX Close-Punch Base Insert
CTS-2109XX or
C
CTS-2110XX
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
Close-Punch Base Boot
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 63
6. Stiffeners
Close-Punch Standard Stiffener to a 12 Bolt Pattern Laminated
Stiffener with Insert
Refer to the following information for a close-punch connection of a standard stiffener (CTS-2073) to a
12 bolt pattern laminated stiffener (CTS-2137XX) with insert (CTS-2138XX). (See Figure 6Z.)
Figure 6Z Close-Punch Standard Stiffener to a 12 Bolt Pattern Laminated Stiffener with Insert
Ref # Part # Description
A CTS-2073XX Close-Punch Standard Stiffener
B CTS-2137XX Close-Punch Laminated Stiffener
C CTS-2138XX Close-Punch Insert
D S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
E S-9426 Flange Nut 3/8"-16 JS
F Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
64 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
12 Bolt Pattern Close-Punch Laminated Stiffeners with Insert
Refer to the following information for a close-punch connection of two (2) 12 bolt pattern laminated
stiffeners (CTS-2137XX) with an inserts (CTS-2138XX). (See Figure 6AA.)
Figure 6AA Close-Punch 12 Bolt Pattern Laminated Stiffeners with Insert
Ref # Part # Description
A CTS-2137XX Close-Punch Laminated Stiffener
B CTS-2138XX Close-Punch Insert
C S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 65
6. Stiffeners
Close-Punch 12 Bolt Pattern Laminated Stiffener to Laminated
Base Stiffener with an Inserts to a Base Boot
Refer to the following information for a close-punch connection of a 12 bolt pattern laminated stiffener
(CTS-2137) to a laminated base stiffener (CTS-2135XX) with a inserts (CTS-2138XX and CTS-2135XX)
to a base boot (CTS-2131XX). (See Figure 6AB.)
Figure 6AB Laminated Stiffener to Laminated Base Stiffener with an Inserts to a Base Boot
Ref # Part # Description
A CTS-2137XX Close-Punch Laminated Stiffener
B CTS-2138XX Close-Punch Base Insert
C CTS-2135XX Close-Punch Laminated Base Stiffener
D CTS-2136XX Close-Punch Base Insert
E CTS-2131XX Base Boot
F S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
G S-9426 Flange Nut 3/8"-16 JS
H Completed Assembly
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
66 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6. Stiffeners
Close-Punch 12 Bolt Pattern Laminated Stiffener to Laminated
Base Stiffener with an Inserts to a Base Boot
Refer to the following information for a close-punch connection of a 12 bolt pattern laminated stiffener
(CTS-2137) to a laminated base stiffener (CTS-2133XX) with a inserts (CTS-2138XX and CTS-2134XX)
to a base boot (CTS-2109XX or CTS-2110XX). (See Figure 6AC.)
Figure 6AC Laminated Stiffener to Laminated Base Stiffener with an Inserts to a Base Boot
Ref # Part # Description
A CTS-2137 Close-Punch Laminated Stiffener
B CTS-2138XX Close-Punch Base Insert
C CTS-2133XX Close-Punch Laminated Base Stiffener
D CTS-2134XX Close-Punch Base Insert
CTS-2109XX or
E
CTS-2110XX
F S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
G S-9426 Flange Nut 3/8"-16 JS
H Compl eted Assembly
Base Boot
NOTE: 2 Post stiffeners shown. The bolt pattern will vary for 3 post. Only place bolts where holes in the
stiffeners align with holes in the sidewall sheet.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 67
7. Base Angle Installation
Installing the Base Angle
Installing the base angle ring will help reinforce and seal the final ring.
What You Should Know
The base angle overlap should be offset two (2) holes from the stiffener. Do not place overlap in line with
the stiffener.
1. Place a section of the base angle (B) to the bottom portion of the final ring (A).
NOTE: The sidewall sheet will sit on top of the base angle with the ve rtical portion of the base angle
on the inside of the bin. And each end of the base angle will connect to the next base
angle section.
2. Install bolts (C) and nuts (D) as shown, but leaving the end holes of each section unfilled until the
next section is to be installed.
3. Attach the next base angle section overlapping the end holes (E) and install bolts (C) and nuts (D).
4. Repeat this procedure for the remaining base angle sections (B) over lapping the previously installed
base angle section.
5. Before the bolts (C) are tightened, push the base angle tight against the bottom edge of each sheet.
6. Tighten the hardware to the recommended torque specifications, see bolt torque specifications
on Page 25.
7. Before lowering the bin, apply the optional mastic sealer strip (F) to the entire underneath side of the
base angle.
NOTE: If optional mastic sealer strip is not used, it is recommended that some other method should
be utilized to seal the base ring to the concrete.
8. Lower the bin onto the foundation and check for an adequate seal. (See Figure 7A.)
Figure 7A Exploded View of Base Angle (View from inside the bin.)
68 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
7. Base Angle Installation
Ref # Part # Description
A Final Ring Assembly
B B-6753 Base Angle
C S-7487 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
D S-9426 Flange Nut 3/8"-16 JS
E Base Angle Offset Example
F Optional Mastic Sealer (or Equivalent)
Anchor Bolt Detail
The following is the minimum requirement for anchorage on standard tanks. Refer to sidedraw instructions
for special anchorage details.
1. 3/4" Diameter anchor bolt (A) is the minimum allowed.
2. Exposed anchor bolt thread height (B), 3" (7.62 cm).
3. Overall anchor bolt length (C), 18" (45.72 cm).
4. Hook length (D), 4-3/4" (12.065 cm). (See Figure 7B.)
Figure 7B Anchor Bolt Example (3/4" Diameter anchor bolt shown.)
Ref # Part # Description
A B-4161 3/4" Bolt Assembly Package
B Exposed Anchor Bolt Thread Height 3" (7.62 cm)
C Overall Anchor Bolt Length 18" (45.72 cm)
D Hook Length 4-3/4" (12.065 cm)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 69
7. Base Angle Installation
Installing the Base Angle Shims
A section of the base boot plate will rest on top of the base angle, therefore causing the base boot to rest
unevenly on the foundation. To offset this, base angle shims are required to ensure the base boot sets
evenly on the foundation.
What You Should Know
1. Place the required base angle shim around the anchor bolt next to the base angle.
2. Place the base stiffener over the anchor bolt onto the required shim.
3. If needed, add standard shims under the required base angle shim. (See Figure 7C.)
NOTE: If more than one additional shim is required, then the shims must be welded together to the
base plate or the base plate must be grouted to provide the proper elevation.
Figure 7C Base Angle Shims
Ref # Part # Description
CTS-2121XX or
A
CTS-2110XX
B B-7027 Required Base Angle Shim for 6 x 9 Base Plate
C SS-6953 Standard Shim for 6 x 9 Base Plate
CTS-2109XX or
D
CTS-2131XX
E B-7028 Required Base Angle Shim for 8 x 10 Base Plate
F SS-7212 Standard Shim for 8 x 10 Base Plate
B-7025XX or
G
B-7026XX
70 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
6 x 9 Base Plate
8 x 10 Base Plate
Base Angle
7. Base Angle Installation
Anchor Bolt Washer Installation
Anchor bolt washers help to cover the oversized hole in the base plate.
Before You Begin
Anchor bolts are secured and base plates installed.
1. Place a square plate washer (B) onto the anchor bolt (A).
NOTE: A square plate washer (provided) must be installed between the base stiffener (C) and
washer (D).
2. Install a washer (D) and secure with a nut (E). (See Figure 7D.)
3. Tighten to the recommended torque specification, see bolt torque specifications on Page 25.
Figure 7D Base Stiffener Assembly
Ref # Part # Description
A B-4161 3/4" Bolt Assembly Package
B HT -635 Square Washer for 3/4" Anchor Bolt
B B-6756 Square Washer for 1" Anchor Bolt
C Base Stiffener
D S-866 Flat Washer 3/4" USS ZN Flat Grade 2
E S-234 Hex Nut 3/4"-10 ZN Grade 5
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 71
8. Instructions
Stirring devices may create additional loads on grain bin sidewalls, roofs and
floors. If high-moisture grain is loaded too deep and too fast, unstiffened bin
walls can become overloaded. Observe the following installation and operation
procedures if the bin is to be equipped with the stirring device.
WARNING
Instructions for Stirring Devices
Bins are offered in more than one structural series for specific uses. To maintain the warranty, the
appropriate “series” grain bin must be used. Consult the sales catalog or contact the Engineering
Department for current recommendations. Note that the use of any stirring device with three (3) or more
vertical screws may require a heavier than “standard” series bin. Any re-circulating device or system
should be used in the “re-circulating” series bins. NOTE: For GSI bins larger than 36' diameter an
alternate method of mounting is to attach suspension chain to intermediate center collar.
1. Read owner’s manual for the stirring device and follow all instructions se t fort h by th e manufa cture r.
IMPORTANT: Install the switch for the stirring device near the roof manway opening so that the
unit can be observed while stirring.
2. Make sure there are no obstructions, such as protruding ladders.
3. After loading approximately 3' of grain, run the unit one complete revolution to determine if it is
working properly.
4. If the unit is functioning properly, operate the stirring device continuously while filling and drying to
avoid compacted grain around the vertical screws.
5. If it becomes necessary to stop a stirring device using laterally moving screws, try to stop it with the
vertical screws nearest to the center of the bin, away from the sidewall. Should a device stop or stall
for any reason and remain inoperable for any length of time, the auger carriage should be supported
to the grain surface before restarting. The vertical auger should be turned by hand, with a pipe
wrench, before power is applied.
6. For best results, fill the bin to one-half of the final intended depth. Dry grain to 16% and continue
filling. Use filling rates specified by stirring device manufacturer. If necessary to fill to the top wit hout
stopping, reduce the filling rate and drying air temperature so that th e stirrin g rate ca n keep up with
the drying rate.
7. Do not overfill bin. Filling should be stopped at bottom of top ring or 30" below the track.
8. The preceding steps are only general instructions which apply to the majority of stirring devices.
Since there are different manufacturers of these devices, it is importan t to read the operator’s manual
thoroughly for specific instructions applicable to the machine.
72 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
8. Instructions
Auto-Vent Assembly and Installation Instructions
The following instructions are for assembling and installing the Auto-Vent. First, check the packing list to
ensure all components have been shipped. The unit is easiest assembled in the upside down position
as shown in the instructions.
Assembly
1. Take all parts out of the shipping box and check if all parts are present.
2. Turn one roof vent housing (MIS-6778) upside down. (See Figure 8A.)
3. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through hole in the side of roof vent. Place
jamb nut onto the bolt and tighten. (See Figure 8A.)
4. Slide flap assembly (MIS-6777) on to bolt. The bolt should slide through hole in the flap assembly
bracket. Install with curvature cupped upward and the brackets in the position as shown in Figure 8A.
5. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the other side of the roof vent, through
jamb nut and other flap assembly bracket. Tighten nut against vent housing side.
6. Apply a bead of tube caulking around three (3) housing sides of the roof vent where it meets the
hold-down angle.
7. Place hold-down angle (MIS-4404) on the assembled roof vent. The wide end of the hold-down angle
must face vent discharge. Once aligned, screw nine (9) #10 self-drilling (S-280) screws through the
roof housing and into the hold-down angle. (See Figure 8B on Page 74.)
Ref # Part # Description
A MIS-6777 Flap Assembly
B MIS-6778 Vent Housing Assembly
C 5/16" x 1-1/4" Nut and Bolt
Figure 8A
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 73
8. Instructions
Assembly (Continued)
Ref # Part # Description
A Short Side Approximately 15-3/8"
B MIS-4404 Hold-Down Angle
C Long Side Approximately 15-7/8"
Figure 8B
Installation
8. If the roof sheet does not have a pre-punched hole for the roof vent, a hole mu st be cut. The cut hole
should match the roof vent. The hole’s inside edge should be approximately 15" from the eave.
(See Figure 8E on Page 75.)
9. Place the three (3) foam strips on roof sheet, as shown in Figure 8D on Page 75. Position roof
vent over foam strips and bolt down using 5/16" x 3/4" bin bolts and nuts. NOTE: See Figure 8E on
Page 75 for lower two (2) bolts of vent.
Figure 8C
74 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Installation (Continued)
Figure 8D
8. Instructions
Ref # Part # Description
A MIS-6780 Top Strip
B Short Side Approximately 15-3/8"
C Long Side Approximately 15-7/8"
D MIS-6781 Side Strips
E Roof Eave
Figure 8E
Ref # Description Ref # Description
Foam Strips
A 5/16" x 3/4" Bolts and 5/16" Flan g e Nuts (12) D
B Caulk with Tube Caulking (Three (3) sides of vent housing.)
NOTE: Install bolts for these two (2) holes with the bolt head and
neoprene washer to the underneath side of the roof sheet and the
C
5/16" flange nut against the vent hold-down angle. Caulk holes.
Top (MIS-6780) (1)
Sides (MIS-6781) (2)
E Approximately 15" from Eave
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 75
8. Instructions
Wire Grill Guard Roof Vent Assembly and Installation Instructions
The following instructions are for assembling and installing the wire grill guard roof vent. Before beginning
assembly, check the packing list to ensure all components have been received. The unit is easiest
assembled in the upside down position as shown in Figure 8F. Locate the roof vent as shown in
Figure 8J on Page 78.
Assembly
1. Turn one roof vent housing (MIS-6778) upside down. (See Figure 8F.)
2. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the hole in the side of the roof vent.
Place jamb nut onto the bolt and tighten. (See Figure 8F.)
3. Slide one eyelet of grill guard onto the 5/16" bin bolt.
4. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the other side of the roof vent, through
jamb nut and other eyelet of grill guard. Tighten nut against vent housing side.
5. Apply a bead of tube caulking around the three (3) housing sides of the roof vent where it meets the
hold-down angle.
6. Place hold-down angle (MIS-4404) on the assembled roof vent. The wide end o f the hold-down angle
must face the vent discharge. Once aligned, screw nine (9) #10 self-drilling (S-280) screws through
the roof housing and into the hold-down angle. (See Figure 8G on Page 77.)
Ref # Part # Description
A MIS-6776 Grill Guard
B MIS-6778 Vent Housing Assembly
C 5/16" x 1-1/4" Nut and Bolt
Figure 8F
76 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Assembly (Continued)
8. Instructions
Ref # Part # Description
A Short Side Approximately 15-3/8"
B MIS-4404 Hold-Down Angle
C
D Long Side Approximately 15-7/8"
Figure 8G
Caulk with Tube Caulking
(Three (3) sides of vent housing.)
Installation
7. If the roof sheet does not have a pre-punched hole for the roof vent, a hole must be cut. Cut the hole
to match the roof vent. The inside edge of the hole should be approximately 15" from the eave.
(See Figure 8J on Page 78.)
8. Place the three (3) foam strips on roof sheet, as shown in Figure 8I on Page 78. Position roof
vent over foam strips and bolt down using 5/16" x 3/4" bin bolts and nuts. NOTE: See Figure 8J on
Page 78 for lower two (2) bolts of vent.
Figure 8H
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 77
8. Instructions
Installation (Continued)
Figure 8I
Ref # Part # Description
A MIS-6780 Top Strip
B Short Side Approximately 15-3/8"
C Long Side Approximately 15-7/8"
D MIS-6781 Side Strips
E Roof Eave
Figure 8J
Ref # Description Ref # Description
Foam Strips
A 5/16" x 3/4" Bolts and 5/16" Flan g e Nuts (12) D
B Caulk with Tube Caulking (Three (3) sides of vent housing.)
NOTE: Install bolts for these two (2) holes with the bolt head and
neoprene washer to the underneath side of the roof sheet and the
C
5/16" flange nut against the vent hold-down angle. Caulk holes.
Top (MIS-6780) (1)
Sides (MIS-6781) (2)
E Approximately 15" from Eave
78 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Round Manway Cover
Round manway cover detail for bins 60' and smaller.
9. Manway Cover Assembly
Figure 9A
Ref # Part # Description Ref # Part # Description
A ACD-4505 Hinge Leaf H 5/16" Flange Nut
B ACD-4504 Manway Cover
C ACD-4513 Handle J ACD-4506 Hinge Base
D CRP-5003 Handle Gasket
E ACD-4514 Latch L 5/16" x 3/4" Bolts
F Manway Roof Sheet
G CRP-4998 Manway Seal Strip
I CRP-4999 Moisture Diverter
K Double Nut these Bolt
Suffocation/Flighting Danger Decals
M
DC-GBC-1A
DC-GBC-1S
(Located Under Cover)
English
Spanish
Apply caulking to underneath side of moisture diverter to seal between the corrugated roof sheet and
diverter. Attach the moisture diverter and hinge base to manway roof sheet with 5/16" x 3/4" bolts and n uts.
Place hinge leaf on manway cover and bolt both hinge parts together with 3/8" x 1" bolts and lock nuts.
Attach the handle with two (2) #10-24 x 5/8" long bolts and #10-24 lock nuts. Slip a 5/16" nut in the latch
bar, thread on the shaft of handle and adjust latch bar so it will catch the bottom side of the manway sheet.
Snap the manway seal strip to the manway seal. (See Figure 9A.)
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 79
10. Center Collar Details
CRP-4608
CRP-4609
18', 24' through 54' Roofs
Color code: Red
21' Roof
Color code: Blue
Center Collar Details
The standard roof with a dome cap lid will have a center collar assembled from three (3) pieces.
The dome cap will mount onto it as well as the flashing. The dome cap is standard on all 18'-36'
40 series bins. A flat top is standard on all 42'-60' 40 series bins.
For the 36' dome cap bins, this will be the upper or “top” center collar. The lower or “Z” center collar details
are given on the later pages.
36' and larger flattop bins do not have the top center collar.
Figure 10A
80 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
11. Roof Assembly
Roof Assembly
After completing the first sidewall ring, you are ready to begin construction. Begin with the center collar
sections. For convenience in opening and closing the center cover, the roof ladder and manhole sheet
should be placed directly opposite the two (2) slide rod holes in the center collar. Next build a roof center
support to hold the peak in place at the proper height. A simple structure composed of a sturdy cross
arm attached to a pole and supported by a platform or scaffo lding will do. Stand the center support directly
in the center of the bin. The following dimensions are approximate distances used in bin roof construction.
Adjusting the center support height will ease roof erection. Place eave clips inside the b in wall to maintain
an opening around the top of the sidewall. This allows condensation, which normally collects on the
underneath side of the roof panels, to flow freely to the outside of the bin, thus avoiding possible
grain spoilage. (See Figure 11A.)
Use with 1 Ring of
Bin Diameter
18' 7'-5'' 10'-1"
21' 8'-4'' 11'-0"
24' 9'-2'' 11'-10"
2.66'' Corrugated Sidewall
“A” “A”
Use with 2 Ring of
2.66'' Corrugated Sidewall
Figure 11A
Ref # Description
A Bin Diameter
B Center Support Pole
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 81
11. Roof Assembly
NOTE: Use the same overlay procedure on all roof sheets.
For best results in erecting the roof, install two (2) roof panels in four (4) places as shown in Figure 11C.
When these eight (8) panels are in place, the peak assembly should be centered. Next add two (2) or
three (3) panels at a time to each section making certain to lap them the same way, until all panels are in
place. Be sure the panels are bolted loosely. DO NOT TIGHTEN BOLTS UNTIL THE ROOF IS
COMPLETELY ASSEMBLED. When installing the roof panels, take into consideration placing the
manway for ease of access to and from the sidewall and roof ladders. On Stiffened tanks, particularly
location of the manway panel and roof ladder in relation to the stiffeners is crucial for proper
installation of the ladder system. PNEG-1420 and PNEG-1738 for flat bottomed stiffened tanks.
These manuals are packaged with the ladder and safety cage packages.
Fasten roof sheets to eave clips and sidewall sheets as you assemble.
Figure 11C
Figure 11B Roof Overlay
Ref # Description
A Center Collar
B Roof Panels
82 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
11. Roof Assembly
Typical all eave clips
5/16" x 1" Flange nuts (S-3611)
and bolts (S-10250)
Roof Assembly for 18' through 24' Bins
NOTE: Be sure to install ladder rungs and safety steps as you assemble roof panels. When assembling
such pieces as roof ladder rungs, use 5/16" x 1" bolts with a flat washer on top of the slot and extra
neoprene washer between the roof and the piece being added. This will ensure a more protective
seal against moisture.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 83
Figure 11D
11. Roof Assembly
Roof Assembly for 18' through 24' Bins (Continued)
Ref # Part # Description Ref # Part # Description
Center Collar
A CRP-4608
CRP-4609
B S-3611 5/16" x 1" Flange nuts
C S-10250 Flange Bolts I
D
E
F CRP-5325 Yellow - Rev. Roll Large Eave Clip
18', 24' Roof - Red (3)
21' Roof - Blue (3)
* Leave out top row of bolts along top edge
of rib for collar flashing, to installed later.
IMPORTANT: Start roof channel second
hole from the bottom of roof rib.
G CRP-5327
H Roof Step
J
CRP-4694
CRP-4693
Red - Rev. Roll
Intermediate Eave Clip
Apply a bead of caulking
around the center collar
T y pi cal Roo f Details
Roof Channels: Two (2)
required under roof ladder
ribs. Position channel as
close to eave as possible.
18' Roof Channel
21' and 24' Roof Channel
To assemble slide rods and cover, insert straight end of slide rod through the center collar and thread one
5/16" nut all the way down on the rod. Then place rod through the cover and put a washer and nut on the
outside. DO NOT TIGHTEN. Insert rod through the cover, then place washer and nut on the outside.
TIGHTEN. Adjust and tighten nuts on straight end of rod. After tightening, it may be necessary to spread
the rods slightly to make them parallel. Maintain 10" between rods.
Figure 11E Section through Center Collar
Ref # Part # Descriptio n Ref # Part # Description
A S-3611 5/16" Flange Nuts F CRP-4606 Slide rods (2)
B CRP-4602 Peak Cap
C PR-331 Peak Cap Handle H Flashing
D CRP-4654 Cap Hold-Down
E CRP-4639 18'-24' Cap Hold-Down Bracket
G Roof Sheet
I Center Collar
84 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Roof Assembly for 18' through 24' Bins (Continued)
Apply a strip of caulking
between flashing and
center collar.
11. Roof Assembly
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 85
Figure 11F Top View
Ref # Part # Description
A CRP-4620 18' Roof Flashing (3)
A CRP-4621 21' Roof Flashing (3)
A CRP-4622 24' Roof Flashing (3)
B CRP-4606 Slide Rods (2)
C CRP-4602 Peak Cap
D Apply Caulking on Each Clip
12. Support Ring Instructions
WARNING
DO NOT OVERFILL BIN. Stored grain, although heaped in the center, should
be no higher than the roof eaves at the outer edge. Filling the bin above this
point creates excessive internal pressure and may cause swelling and eventual
failure of the roof.
Ring Instructions
Be sure to install ladder rungs and safety steps as you assemble roof panels. (See Figure 12A.) At this
point you will have completed assembly of the roof. Do not tighten bolts yet. Optional equipment and
accessories should now be installed.
NOTE: When assembling such pieces as roof ladder rungs, use 5/16" x 1" bolts with a flat washer on top
of the slot and extra neoprene washer between the roof and the piece being added. This will
ensure a more protective seal against moisture.
IMPORTANT: Maximum weight to be supported and/or suspended from the roof is to be 6000 pounds
for 18' through 36' (non-trussed) ONLY.
Figure 12A
Ref # Description
A Roof Steps
B Roof Channel
86 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
12. Support Ring Instructions
Roof Support Ring Instructions
Roof support rings are standard on all bins up to 48' diameter. Two (2) support rings are standard for
18'-24' diameter bins. All support rings will be placed on the outside of the roof panels.
To determine the location of the support rings, start at the narrow or peak of the roof panel and count
each hole. Having counted down the required distance, as described in the Chart below, install the
appropriate brackets. (T=Top, B=Bottom)
Expansion bolts should be fully contracted when assembling support rings. When you have completely
assembled both rings, (but prior to expanding the bolts) tighten all roof bolts including eave clip bolts.
Now extend expansion bolts by running the nut out on the threads. This procedure should be continued
evenly around the roof until the ring raises the roof to show a slight crown.
Support ring expansion bolts may become dislodged from the ring during high winds or when the inside
pressure of the bin is too great. If one expansion bolt is dislodged, the entire ring will become useless.
To prevent this, drill holes through the support ring and expansion bolt (after the rings have been installed
and expanded to the correct size) and insert a cotter pin or bolt through each hole.
NOTE: Welding of the expansion nuts to the pipe and expansion bolts or staking the expansion bolt
threads to prevent the movement of the jamb nut may be done as a n option to drilling and pinning.
Bin Diameter
Support Ring Location
18 (T)
18 (B)
21 (T)
21 (B)
24 (T)
24 (B)
Support Ring Location
from Center
3rd Hole
4th Hole
3rd Hole
5th Hole
3rd Hole
5th Hole
NOTE: Last support ring pipe must be cut to length.
Support Ring
Color Code
Yellow/White 3
Blue/White 4
Yellow/White 3
Red/White 5
Yellow/White 3
Red/White 5
Number of Pipes
per Ring
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 87
12. Support Ring Instructions
Roof Support Ring Instructions (Continued)
Figure 12B
Ref # Part # Description
A R-997 Safety Ring Bracket
B Support Ring
C Expansion Bolt
D Omit Roof Step at Ring Locations
88 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
12. Support Ring Instructions
NOTE: Last support ring pipe
will need to be cut to length.
Roof Support Ring Instructions (Continued)
NOTE: Welding of expansion nuts to the pipe and expansion bolt may be done as an option to drilling
and pinning.
30° Roof Panel Information
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 89
Figure 12C
Ref # Part # Description
A R-997 Safety Ring Bracket
B Safety Ring (Optional)
C Expansion Bolt
Part #
CRP-4627 18' (5.49 m) - 30° 6 Holes 112-3/8'' 18
CRP-4628 21' (6.40 m) - 30° 7 Holes 132-7/8'' 21
CRP-4629 24' (7.32 m) - 30° 8 Holes 153-1/2'' 24
Roof Size and Number of
Roof Rib Holes
Rib Length # of Panels
13. Accessories
R1 (0.5)
R3 (0.00)
R5
R7
R9
R11
R2
R4 (0.5)
R6 (0.00)
R8 (0.25)
R10 (0.5)
R14
R16 (0.5)
R18
R19 (0.5)
R12
R13 (0.5)
R15
R17
16
48
96
48
48
72
72
96
96
B
A
Wind Ring Requirements
Wind rings give additional strength against high winds and uneven loads. The quantities and placement
of wind rings will depend on the size of bin being constructed.
Ref # Description
A Distance (inches) between the center of each wind ring pipe.
Sidewall ring numbers and location for ring pipe installation.
“R” Value (ex. R10) = Sidewall ring number.
“0.XX” (ex. 0.25) = Wind ring pipe center line location within the sidewall
ring measured from the top of the each sidewall ring.
B
(0.00) = Horizontal seam.
(0.25) = Quarter sheet down from top of sidewall ring.
(0.50) = Half sheet down from top of sidewall ring.
(0.75) = Three quarter sheet down from top of the sidewall ring.
Figure 13A Wind Ring Locations
90 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Wind Ring Requirements (Continued)
NOTE: Ensure the wind rings are installed in relation to the
ladder rungs as shown to meet O.S.H.A. specifications.
13. Accessories
Figure 13B
Ref # Description
A 1-1/2" (3.81 cm)
B 4-1/2" (11.43 cm)
Installing Wind Rings
Installation of wind rings is similar for a 2 and a 3 post bin design, although hardware quantities may vary.
What You Should Know
Before installing, determine the bin size, sidewall gauge thickness and height. Use the hardware chart to
match the correct bolt length with the correct sidewall gauge thickness when installing the wind ring
brackets to the stiffeners. (Refer to hardware requirements chapter on Page 23.) To determine the
location of the wind rings or if additional wind rings will be needed for sidedraw systems, see wind ring
requirements for sidedraw systems.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 91
13. Accessories
NOTE: When installing the wind ring bracket to a 2.66" close
punched stiffener, use the bolt holes marked 1, 2, 4 and 5 as
shown. When installing the wind ring bracket to a 2.66" far
punched stiffener, use the bolt holes marked 1 and 5 only.
Hole marked 3 will not be used on all 2.66" bins. Flange bolt
hardware length may vary with sidewall gauge thickness.
Installing Wind Rings (Continued)
1. Install a wind ring bracket (B) to each stiffener (C) using flange bolts (A) and flange nuts (D).
Figure 13C Wind Ring Bracket
2. Tighten hardware to the recommended torque specifications. See bolt torque specifications
on Page 25.
3. Place a wind ring section (E) into the channel of the wind ring bracket (B) and install a C-clamp (I),
securing with flange bolts (H) and flange nuts (J). Do not tighten until all wind ring sections
are installed.
4. Repeat this procedure, inserting each wind ring section (E), over the previously installed wind ring
section, securing the wind ring sections together with flange bolts (F) and hex nuts (G).
5. Before installing the last wind ring section (E), slide a wind ring couplin g collar (K) over the wind ring
section (E).
6. Install the last wind ring section (E) and cut the wind ring section to the proper length.
NOTE: The cut needs to be made in a location that allows minimal space between the pipes.
7. Slide the wind ring coupling collar (K), aligning the three (3) pre-drilled holes and install flange
bolts (F) and hex nuts (G). Field drill the remaining three (3) holes (L) using the wind ring coupling
collar (K) as a guide or template. (See Figure 13D on Page 93.)
8. Install the remaining flange bolts (F) and hex nuts (G) and tighten all hardware to the recommended
92 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
torque specifications. See bolt torque specifications on Page 25.
Installing Wind Rings (Continued)
13. Accessories
Figure 13D Exploded View of Wind Ring Installed at Upper Portion of Stiffener
Ref # Part # Description
A Varies Flange Bolt with Sealing Washer
B CTS-1005 Wind Ring Bracket
C Varies Stiffener
D Varies Flange Nut
CTS-1004-XX (or)
E
CTS-1002–XX
F S-10261 7/16" x 3-1/4" Flange Bolt with Sealing Washer
G S-9281 7/16" Hex Nut
H S-7485 Flange Bolt 3/8"-16 x 1" JS Grade 8 or Grade 8.2
I SS-7248 C-Clamp
J S-9426 Flange Nut 3/8"-16 JS
K CTS-1006 Wind Ring Coupling Collar
Wind Ring Section
L Field Drilled Hole Location
NOTE: (-XX) denotes the bin diameter.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 93
NOTES
94 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
14. Warranty
9101239_1_CR_rev7.DOC (revised July 2009)
GSI Group, LLC Limited Warranty
The GSI Group, LLC (“GSI”) warrants products which it manufactures to be free of defects in materials and workmanship
under normal usage and conditions for a period of 12 months after sale to the original end-user or if a foreign sale,
14 months from arrival at port of discharge, whichever is earlier. The end-user’s sole remedy (and GSI’s only obligation)
is to repair or replace, at GSI’s option and expense, products that in GSI’s judgment, contain a material defect in materials
or workmanship. Expenses incurred by or on behalf of the end-user without prior written authorization from the GSI
Warranty Group shall be the sole responsibility of the end-user.
Warranty Extensions:
The Limited Warranty period is extended for the following products:
Product Warranty Period
Performer Series Direct Drive Fan Motor 3 Years
AP Fans and Flooring
Cumberland
Feeding/Watering
Systems
Grain Systems Grain Bin Structural Design 5 Years
Grain Systems
Farm Fans
Zimmerman
All Fiberglass Housings Lifetime
All Fiberglass Propellers Lifetime
Feeder System Pan Assemblies 5 Years **
Feed Tubes (1-3/4" and 2.00") 10 Years *
Centerless Augers 10 Years *
Watering Nipples 10 Years *
Portable and Tower Dryers 2 Years
Portable and Tower Dryer Frames and
Internal Infrastructure †
5 Years
* Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 25%
5 to 7 years - end-user pays 50%
7 to 10 years - end-user pays 75%
** Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 50%
† Motors, burner components
and moving parts not included.
Portable dryer screens included.
Tower dryer screens not included.
GSI further warrants that the portable and tower dryer frame and basket, excluding all auger and auger drive components,
shall be free from defects in materials for a period of time beginning on the twelfth (12
and continuing until the sixtieth (60
th
) month from the date of purchase (extended warranty period). During the extended
th
) month from the date of purchase
warranty period, GSI will replace the frame or basket components that prove to be defective under normal conditions
of use without charge, excluding the labor, transportation, and/or shipping costs incurred in the performance of this
extended warranty.
Conditions and Limitations:
THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH
ABOVE. SPECIFICALLY, GSI MAKES NO FURTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OR USE IN CONNECTION WITH: (I) PRODUCT MANUFACTURED OR SOLD BY GSI OR (II) ANY ADVICE,
INSTRUCTION, RECOMMENDATION OR SUGGESTION PROVIDED BY AN AGENT, REPRESENTA TIVE OR
EMPLOYEE OF GSI REGARDING OR RELATED TO THE CONFIGURATION, INSTALLATION, LAYOUT, SUITABILITY
FOR A PARTICULAR PURPOSE, OR DESIGN OF SUCH PRODUCTS.
GSI shall not be liable for any direct, indirect, incidental or consequential damages, including, without limitation, loss of
anticipated profits or benefits. The sole and exclusive remedy is set forth in the Limited Warranty, which shall not exceed
the amount paid for the product purchased. This warranty is not transferable and applies only to the original end-user. GSI
shall have no obligation or responsibility for any representations or warranties made by or on behalf of any dealer, agent
or distributor.
GSI assumes no responsibility for claims resulting from construction defects or unauthorized modifications to products
which it manufactured. Modifications to products not specifically delineated in the manual accompanying the equipment at
initial sale will void the Limited Warranty.
This Limited Warranty shall not extend to products or parts which have been damaged by negligent use, misuse, alteration,
accident or which have been improperly/inadequately maintained. This Limited Warranty extends solely to products
manufactured by GSI.
Prior to installation, the end-user has the responsibility to comply with federal, state and local codes which apply to the
location and installation of products manufactured or sold by GSI.
PNEG-4021 40 Series 18', 21' and 24' Diameter Bins 95
This equipment shall be installed in accordance with
the current installation codes and applicable
regulations, which should be carefully followed in all
cases. Authorities having jurisdiction should be
consulted before installations are made.
GSI Group
1004 E. Illinois St.
Assumption, IL 62510-0020
Phone: 1-217-226-4421
Fax: 1-217-226-4420
www.gsiag.com
Copyright © 2013 by GSI Group
Printed in the USA
GSI is a worldwide brand of AGCO Corporation.
CN-306741
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