NRA-04/04S
Pugmill Instruction Manual
Please make sure to read the entire instruction manual thoroughly before initial
set-up, operation, maintenance and inspection to ensure proper use.
Please keep this instruction manual in a location that is available to the user.
NIDEC CORPORATION
Contents
Safety precautions 1
Specifications 4
List of contents 4
Installation Instructions 5
Operating Instructions 6
Maintenance Instructions 7
Warranty Provisions 9
Disposal Method 9
SAFETY PRECAUTIONS
Please make sure to read the entire instruction manual thoroughly before initial set-up, operation,
maintenance and inspection to ensure proper use.
Please start using only after you have read the equipment’s function, safety information and
precautions.
This instruction manual provides three grades of safety warnings: “Danger”, “Warning” and “Caution”.
All precautions described here under which concern to the safety are to be read carefully. Please be
sure to follow them.
Danger
Warning
Caution
We call your attention to these warnings throughout the manual using the following symbols:
Danger marking indicates possible death, severe injury or fire if the user
disregards the instruction.
Warning marking indicates the possibility of severe injury if the user does not
follow the instruction.
Caution marking indicates the possibility of minor or damage if the user operates
the pug mill improperly. However, depending on the circumstances, it is still
possible to cause severe injury. Please make sure to pay close attention to these
warnings.
Warning; Pay Close Attention
Do Not
Please Follow Instructions
DANGER
These are safety precautions regarding with installation of pug mill.
Installation
Do not set up in a location that is
susceptible to rain and water or an
area of high moisture.
This may cause a fire or failure form electrical shock or
electrical leakage.
Operation
Do not let anyone operate the pug
mill without proper instructions
and supervision.
Please assign a specific person to supervise the use of
the pug mill in facility where many people operate the
unit. Make especially sure not to let children operate the
pug mill.
Do not overload the electrical
outlet.
Check the amperage rating of the outlet and of
any other equipment that may be on the same
circuit. A fire could result from overloading the
circuit.
Do not insert hands.
Please do not insert hands into the clay hopper
or clay nozzle. Serious injury could occur.
Be careful of clothing.
Loose fitting ties aprons and other clothing may hang
into clay hopper clay nozzle and become entangled in
the internal moving parts causing serious injury.
Do not operate any switches with
wet hands.
This may cause an electrical shock if you operate
switches or plug / unplug cord into the power outlet.
Secure long hair away from
pug mill.
Serious injury may occur if a person’s hair becomes entangled
in the internal moving parts.
MAINTENANCE
Maintenance
These are safety precautions regarding the maintenance of pug mill.
Switch the power off before doing
any inspection. Unplug the power
cord.
Please make sure to switch the power off and unplug the
power cord from the outlet before doing any cleaning,
inspection, adjustment, or moving the pug mill.
Do not use damage power cord
Please do not use damaged power cord, damaged
plug or worn power outlet. It may cause a fire due to an
electrical shock or electrical short.
WARNING
Unplug the power cord
carefully by pulling the power
plug, not the power cord.
Do not pull on the cord when you unplug the
power cord. This may cause damage to the
cord and/ or plug, which could also, result in a
fire created by an electric short or injury from an
electrical shock.
Installation
Place the pug mill on a flat
horizontal surface.
Please make sure to place pug mill unit
on a horizontal surface since bumps
and slopes may cause vibration and
noise. Please make sure to tighten
the lock nut on the adjustable leg
after adjusting the height.
These are safety precautions regarding with installation of the pug mill.
Be careful with handling
since this product is heavy.
Please handle pug mill with extreme care since
serious injury can occur if the unit should fall on
(hands or feet) body parts.
CAUTION
Operation Maintenance
These are safety precautions regarding with operation of
the pug mill.
Please turn the power switch off if
you will not be using the pug mill
for an extended period of time.
If you will not be using the pug mill for a long period of
time please switch the power off and unplug the power
cord from the outlet to prevent damage from possible
power surge such as a lighting strike.
These are safety precautions regarding the
maintenance of pug mill.
Do not pour water on pug
mill to clean it.
Please do not pour water on pug mill to clean it. This may cause
an electric short or damage to the pug mill. Clean off pug mill
with a damp cloth. The clay hopper, screw case, and nozzle are
washable only after disassembly.
SPECIFICATIONS
Model NRA-04 NRA-04S
Dimension 25 1/2” (40” Including Plate) x 12” x 22 1/2” Height
Weight 144 lbs 166 lbs
Anger Rotation 20 rpm / 60Hz 20 rpm / 60Hz
Motor 200W 4P Single Phase 115V 200W 4P Single Phase 115V
Extruding Capacity 880 lbs / hour 880 lbs / hour
Structure Twin Anger Twin Anger
Anger material Stainless Steel Stainless Steel
Anger Case Material Aluminum Stainless Steel
Nozzle Diameter 3 1/2” 3 1/2”
LIST OF CONTENTS
Description Quantity Reference
Drive Housing 1
Clay Roller Shelf 1
Hopper Cover 1 Cover for Clay Hopper
Front Cover 1 Cover for Nozzle Opening
Wrench 1
Double-head Wrench 1 each
Allen Wrench 1
Bolt 2 M10 x 1” for screw case removal
Instruction Manual 1
Warranty Card 1
Pug Mill Diagram
INSTALLATION
Installation
1. Remove the front cover and hopper cover.
2. Place the roller clay shelf in front of the nozzle.
3. Lossen lock nut on afjustable leg.
4. Set the adjustable leg level on the pug mill and allow all four
feeton frame to touch the surface.
OPERATION
Operation
Precautions
* Do not operate any switches with wet hands.
* Do not insert hands or body parts into any opening on the pug mill.
* The breakers may shut down by overloading if you forcibly operate the lever. (Operation of
Breaker, refer to P. 8)
* In the event that dry clay remains in the clay hopper, please remove the nozzle and clean the
internal parts. (Disassembly Procedures, refer to P. 7)
*Please do not put a chunk of dry clay or clay refuse into the clay hopper.
* Before placing clay into the hopper clay, please be sure to add water into the clay in order to
put in the condition that you can knead by hands. Otherwise, screw may stop and clay may not
mix well.
1. Switch the power on.
2. Pull the lever up (screw stop). Place clay into the clay hopper in small amounts.
3. Pull the lever down (screws rotate).
4. When the lever is all the way down it can be lifted back up to place more clay in
clay hopper. Continue with this process until you have proceeded all of your clay.
5. Switch the power off when you are finished processing clay.
6. Pull the lever down.
7. Unplug the power cord from the outlet.
SWITCH
ON (START)
OFF (STOP)
After Operation
1. Pull the lever down and install the hopper cover over the clay hopper.
2. Install the front cover over the end of the pug mill nozzle.
BREAKER
Precautions
*Never operate the pug mill with dry clay remaining in the main body.
*When total cleaning of the pug mill is desired clean internal parts of the main body by following
the disassembly procedures (Disassembly Procedure, refer to P.7).
Please do not leave clay in the main body for a long period if time. Just in case dry clay remains
in Drive housing, do not operate the pug mill in such a condition. Please disassemble the pug mill
and remove the clay (Disassembly Procedures, refer to P.7).
MAINTENANCE
Cleaning
* When total cleaning of the pug mill is desired clean the internal parts of the main body by
following the disassembly procedures.
Disassembly Procedures
1. Switch the power off.
2. Unplug the power cord from the outlet.
3. Remove the hopper cover and front outlet.
4. Remove two nuts that secure the nozzle to the screw case using the wrench supplied. Then
remove the nozzle from screw case.
5. Remove the four bolts that secure the clay hopper to the screw case using the wrench supplied.
6. Remove screw case by detaching four nuts that secure the screw case to the drive housing using
the wrench supplied.
Precautions
*Rinse each of the disassembled parts with water and dry them well. Do not disassemble parts, which
are not described, since this may cause the pug mill to fail and will void the warranty.
Disassembly Diagram
In the event that it is
difficult to remove hard clay
remaining in screw case for
an extended period thread
the 1” bolt into the tapped
holes at the rear of the screw
case to gently pry the screw
case from the drive housing
Oil Inlet Opening
1. Pull the lever down and install the hopper cover over the clay hopper.
2. Install the front cover over the end of the pug mill nozzle.
Precautions
*Fuel oil or grease is not suitable for lubrication.
*Please do not inject unknown substances or water into the oil inlet opening.
MAINTENANCE
Assembly Procedures
1. Install the screw case into the drive housing and tighten with nuts for attaching the screw case.
2. Install hopper onto the screw case and tighten with bolts for attaching the clay hopper.
3. Install nozzle onto the screw and tighten with nuts for attaching the nozzle.
4. Pull the lever down, plug the power card into the outlet, and switch the power on. Check for unusual
sounds. Recheck assembly if necessary.
Trail Operation
1. Plug the power cord into the outlet.
2. Do not set anything into the clay hopper, pull the lever down, switch the power on,
and then allow the unit to run for a short time.
3. Check if the pug mill has any vibration, rattles, or unusual sounds (If none then
proceed to the section on operation).
4. Switch the power off and unplug the unit.
5. Make adjustments to level and position the pug mill.
6. Return to step one.
Precautions
*Do not operate any switches with wet hands.
*Do not insert your hands into any pug mill opening.
Operation if Breaker
The breaker will not shut off under normal use. If you forcibly push a large amount of clay, or hard clay,
into the hopper it will cause the breaker to shut off the pug mill. In the event that the breaker shuts off the
pug mill will stop. In this case press the breaker switch inward, the breaker switch is under a waterproof
cap. Do not remove the water cap. Press the breaker with the cap in place.
SWITCH
ON (START)
OFF (STOP)
BREAKER
WARRANTY PROVISION
Cleaning
*Shimpo warrants that this product shall be free from defects in workmanship and materials under
normal use and proper maintenance for the warranty period specified providing that you follow the
instruction manual and information printed on the label attached to the main body.
*The following cases are not covered under the warranty:
Breakdown or damage caused by misuse or alternation.
Breakdown by damage caused by dropping the unit.
Breakdown or damage caused by fire, earthquake, flood damage, power surges and other natural
disasters.
Breakdown or damage cause by public pollution, gas, pollution, salt damage, and unusual electric
disturbances.
Changes in apparent condition such as scratches obtained through use and storage.
Failure to submit the warranty card.
*Please keep the warranty card in a safe place. Warranty cards will not be reissued.
*The warranty card guarantees free repair through the warranty period for repairs falling within the
terms of the warranty. If you have any questions about repairs after the warranty period, please consult
an authorized Shimpo dealer or feel free to contact Nidec-Shimpo America Corporation directly.
*Please become familiar with the terms and conditions of the warranty.
DISPOSAL METHOD
*Please consult with local government since the disposal method for the pug mill is different in each
local government.
*Please do not disassemble the pug mill when you dispose of it.
Please make sure to read thoroughly to ensure safe and proper operation of the pug mill.
Please make sure to read thoroughly to ensure safe and proper operation of the pug mill.
1. Assign a designated person to supervise the safe and proper use of the pug mill
in facilities where the unit will be used by more than one person. Restrict the use
of pug mill to only properly trained individuals.
2. Do not let children operate the pug mill.
3. Do not insert your hands into any opening in the pug mill.
4. Switch the power off and unplug the power cord from the outlet when you clean
and disassemble. Never rotate the motor while disassembling.
5. Do not wear loose fitting clothing like neckties or aprons, which may get caught,
in the moving parts in the pug mill.
6. Secure long hair up and away from the pug mill.
7. Do not operate any switches with wet hands.
MANUFACTURED BY
NIDEC-SHIMPO CORPORATION
175 Wall Street
Glendale Heights, IL 60139
Phone: 1-800-237-7079 Fax: 630-924-0340
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