Ransburg AER5000, AER5001 User Manual
Ransburg
SERVICE MANUAL
LN-9521-00.4
(Replaces LN-9521-00.3)
March - 2013
AEROBELL 33
TM
ROTARY ATOMIZER
MODEL: AER5000/AER5001
IMPORTANT: Before using this equipment, carefully read SAFETY PRECAUTIONS, starting on
page 1, and all instructions in this manual. Keep
this Service Manual for future reference.
Service Manual Price: $50.00 (U.S.)
Aerbell 33 Rotary Atomizer
NOTE: This manual has been changed from revision LN-9521-00.3 to revision LN-9521-00.4.
Reasons for this change are noted under “Manual Change Summary” inside the back
cover of this manual.
Ransburg
LN-9521-00.4
Ransburg
Aerbell 33 Rotary Atomizer - Contents
CONTENTS
PAGE
SAFETY: 1-5
SAFETY PRECAUTIONS ......................................................................................................1
HAZARDS / SAFEGUARDS ..................................................................................................2-5
INTRODUCTION: 6-9
FEATURES ............................................................................................................................6
GENERAL DESCRIPTION ....................................................................................................6-7
SPECIFICATIONS .................................................................................................................8-9
INSTALLATION: 10-13
AIT FILTER INSTALLATION ..................................................................................................10
AIR PRESSURE REQUIREMENTS ......................................................................................10
AIR FILTERATION REQUIREMENTS ....................................................................................11
MOUNTING ............................................................................................................................12
FLUID CONNECTIONS ..........................................................................................................12
ELECTRICAL CONNECTIONS ..............................................................................................12
SPEED MONITOR CONNECTIONS ......................................................................................12
INTERLOCKS.........................................................................................................................13
OPERATION: 14-19
COATING MATERIALS .........................................................................................................14
FLUID FLOW RATECONTROL ..............................................................................................14-16
FLUID VALVE CONTROL .......................................................................................................17
TURBINE SPEED...................................................................................................................17
BEARING AIR ADJUSTMENT ................................................................................................18
SHAPING AIR.........................................................................................................................18
BRAKE AIR.............................................................................................................................18
ELECTROSTATIC VOLTAGE .................................................................................................19
TARGET DISTANCE ..............................................................................................................19
MAINTENANCE: 20-34
CLEANING PROCEDURES ..................................................................................................20-22
VIBRATION NOISE ...............................................................................................................22
TURBINE REPAIR & REBUILD .............................................................................................22
HIGH VOLTAGE CONNECTIONS ........................................................................................22
AIR FILTER / ELEMENT REPLACEMENT ............................................................................23
VALVES .................................................................................................................................23
GENERAL .............................................................................................................................23
PREVENTIVE MAINTENANCE .............................................................................................23-25
HIGH PERFORMANCE THERMOPLASTIC BELL CUP PREVENTIVE MAINTENANCE
BELL CUP CLEANING ...........................................................................................................26
..........26
LN-9521-00.4
Ransburg
Aerbell 33 Rotary Atomizer - Contents
CONTENTS (Cont.)
PAGE
MAINTENANCE (Cont.): 20-34
BELL CUP TESTING (NON-ROTATING) ...............................................................................27
OPERATOR / MAINTENANCE WARNINGS ..........................................................................27
LOW VOLTAGE TEST ............................................................................................................28
DISASSEMBLY PROCEDURES ............................................................................................28-31
TROUBLESHOOTING GUIDE ...............................................................................................32-34
PARTS IDENTIFICATION: 35-46
AEROBELL 33 CROSS SECTION VIEW ............................................................................. 35-36
AEROBELL 33 MODEL IDENTIFICATION ........................................................................... 37-38
AEROBELL 33 PARTS LIST ................................................................................................. 39
MANIFOLD ASSEMBLY ....................................................................................................... 40-41
FLUID MANIFOLD ASSEMBLY ............................................................................................ 42-43
WATERBORNE FLUID MANIFOLD ASSEMBLY ................................................................. 44-45
RECOMMENDED SPARE PARTS ....................................................................................... 46
SERVICE KITS ..................................................................................................................... 46
AVAILABLE TOOLS .............................................................................................................. 46
WARRANTY POLICIES: 47
LIMITED WARRANTY ...........................................................................................................47
APPENDIX: 48
PAINT AND SOLVENT SPECIFICATIONS ............................................................................ 48
RANSBURG VISCOSITY CONVERSION CHART.................................................................49-50
VOLUMETRIC CONTENT OF HOSE OR TUBE (ENGLISH / METRIC) ...............................51
LN-9521-00.4
Aerbell 33 Rotary Atomizer - Safety
SAFETY
Ransburg
SAFETY PRECAUTIONS
Before operating, maintaining or servicing any
Ransburg electrostatic coating system, read and
understand all of the technical and safety literature for your Ransburg products. This manual
contains information that is important for you to
know and understand. This information relates to
USER SAFETY and PREVENTING EQUIPMENT
PROBLEMS. To help you recognize this information, we use the following symbols. Please pay
particular attention to these sections.
A WARNING! states information to alert you
to a situation that might cause serious injury
if instructions are not followed.
A CAUTION! states information that tells how
to prevent damage to equipment or how to
avoid a situation that might cause minor injury.
A NOTE is information relevant to the procedure in progress.
W A R N I N G
!
The user MUST read and be familiar with
the Safety Section in this manual and the
Ransburg safety literature therein identied.
This manual MUST be read and thor-
oughly understood by ALL personnel who
operate, clean or maintain this equipment!
Special care should be taken to ensure that
the WARNINGS and safety requirements for
operating and servicing the equipment are
followed. The user should be aware of and
adhere to ALL local building and re codes
and ordinances as well as NFPA-33 SAFETY STANDARD, LATEST EDITION, prior
to installing, operating, and/or servicing this
equipment.
W A R N I N G
!
While this manual lists standard specications
and service procedures, some minor deviations
may be found between this literature and your
equipment. Differences in local codes and plant
requirements, material delivery requirements,
etc., make such variations inevitable. Compare
this manual with your system installation drawings and appropriate Ransburg equipment manuals to reconcile such differences.
Careful study and continued use of this manual will
provide a better understanding of the equipment
and process, resulting in more efcient operation,
longer trouble-free service and faster, easier
troubleshooting. If you do not have the manuals
and safety literature for your Ransburg system,
contact your local Ransburg representative or
Ransburg.
The hazards shown on the following pag-
es may occur during the normal use of this
equipment. Please read the hazard chart beginning on page 2.
1
LN-9521-00.4
Ransburg
Aerbell 33 Rotary Atomizer - Safety
AREA
Tells where hazards
may occur.
Spray Area
HAZARD
Tells what the hazard is.
Fire Hazard
Improper or inadequate
operation and maintenance
procedures will cause a re
hazard.
Protection against inadvertent arcing that is capable of
causing re or explosion is
lost if any safety interlocks
are disabled during operation. Frequent Power Supply
or Controller shutdown indicates a problem in the system
requiring correction.
SAFEGUARDS
Tells how to avoid the hazard.
Fire extinguishing equipment must be present in
the spray area and tested periodically.
Spray areas must be kept clean to prevent the
accumulation of combustible residues.
Smoking must never be allowed in the spray
area.
The high voltage supplied to the atomizer must
be turned off prior to cleaning, ushing or maintenance.
When using solvents for cleaning:
• Those used for equipment ushing should
have ash points equal to or higher than
those of the coating material.
• Those used for general cleaning must have
ash points above 100°F (37.8°C).
Spray booth ventilation must be kept at the rates
required by NFPA-33, OSHA, country, and local
codes. In addition, ventilation must be maintained during cleaning operations using ammable or combustible solvents.
Electrostatic arcing must be prevented. Safe
sparking distance must be maintained between
the parts being coated and the applicator. A distance of 1 inch for every 10KV of output voltage
is required at all times.
Test only in areas free of combustible material.
Testing may require high voltage to be on, but
only as instructed.
Non-factory replacement parts or unautho-
rized equipment modications may cause re or
injury.
If used, the key switch bypass is intended for
use only during setup operations. Production
should never be done with safety interlocks disabled.
Never use equipment intended for use in waterborne installations to spray solvent based materials.
The paint process and equipment should be
set up and operated in accordance with NFPA33, NEC, OSHA, local, country, and European
Health and Safety Norms.
LN-9521-00.4
2
Aerbell 33 Rotary Atomizer - Safety
Ransburg
AREA
Tells where hazards
may occur.
Spray Area
HAZARD
Tells what the hazard is.
Explosion Hazard
Improper or inadequate operation and maintenance proce-
dures will cause a re hazard.
Protection against inadvertent
arcing that is capable of caus-
ing re or explosion is lost if
any safety interlocks are disabled during operation.
Frequent Power Supply or
Controller shutdown indicates
a problem in the system requiring correction.
SAFEGUARDS
Tells how to avoid the hazard.
Electrostatic arcing must be prevented. Safe
sparking distance must be maintained between
the parts being coated and the applicator. A distance of 1 inch for every 10KV of output voltage
is required at all times.
Unless specically approved for use in hazardous locations, all electrical equipment must be
located outside Class I or II, Division 1 or 2
hazardous areas, in accordance with NFPA-33.
Test only in areas free of ammable or combustible materials.
The current overload sensitivity (if equipped)
MUST be set as described in the corresponding section of the equipment manual. Protection against inadvertent arcing that is capable
of causing re or explosion is lost if the current
overload sensitivity is not properly set. Frequent power supply shutdown indicates a problem in the system which requires correction.
General Use and
Maintenance
Improper operation or maintenance may create a hazard.
Personnel must be properly
trained in the use of this equipment.
Always turn the control panel power off prior to
ushing, cleaning, or working on spray system
equipment.
Before turning high voltage on, make sure no
objects are within the safe sparking distance.
Ensure that the control panel is interlocked with
the ventilation system and conveyor in accordance with NFPA-33, EN 50176.
Have re extinguishing equipment readily available and tested periodically.
Personnel must be given training in accordance
with the requirements of NFPA-33, EN 60079-0.
Instructions and safety precautions must be
read and understood prior to using this equipment.
Comply with appropriate local, state, and national codes governing ventilation, re protection, operation maintenance, and housekeeping. Reference OSHA, NFPA-33, EN Norms
and your insurance company requirements.
3
LN-9521-00.4
Ransburg
Aerbell 33 Rotary Atomizer - Safety
AREA
Tells where hazards
may occur.
Spray Area /
High Voltage
Equipment
HAZARD
Tells what the hazard is.
Electrical Discharge
There is a high voltage device
that can induce an electrical
charge on ungrounded objects
which is capable of igniting
coating materials.
Inadequate grounding will
cause a spark hazard. A
spark can ignite many coating
materials and cause a re or
explosion.
SAFEGUARDS
Tells how to avoid the hazard.
Parts being sprayed and operators in the spray
area must be properly grounded.
Parts being sprayed must be supported on conveyors or hangers that are properly grounded. The resistance between the part and earth
ground must not exceed 1 meg ohm. (Refer to
NFPA-33.)
Operators must be grounded. Rubber soled insulating shoes should not be worn. Grounding
straps on wrists or legs may be used to assure
adequate ground contact.
Operators must not be wearing or carrying any
ungrounded metal objects.
When using an electrostatic handgun, operators
must assure contact with the handle of the applicator via conductive gloves or gloves with the
palm section cut out.
NOTE: REFER TO NFPA-33 OR SPECIFIC
COUNTRY SAFETY CODES REGARDING
PROPER OPERATOR GROUNDING.
All electrically conductive objects in the spray
area, with the exception of those objects required by the process to be at high voltage, must
be grounded. Grounded conductive ooring
must be provided in the spray area.
Always turn off the power supply prior to ushing, cleaning, or working on spray system equipment.
Unless specically approved for use in hazardous locations, all electrical equipment must be
located outside Class I or II, Division 1 or 2 hazardous areas, in accordance with NFPA-33.
LN-9521-00.4
4
Aerbell 33 Rotary Atomizer - Safety
Ransburg
AREA
Tells where hazards
may occur.
Electrical
Equipment
HAZARD
Tells what the hazard is.
Electrical Discharge
High voltage equipment is utilized in the process. Arcing
in the vicinity of ammable or
combustible materials may oc-
cur. Personnel are exposed to
high voltage during operation
and maintenance.
Protection against inadvertent
arcing that may cause a re or
explosion is lost if safety circuits
are disabled during operation.
Frequent power supply shutdown indicates a problem in the
system which requires correction.
An electrical arc can ignite coat-
ing materials and cause a re or
explosion.
SAFEGUARDS
Tells how to avoid the hazard.
Unless specically approved for use in hazardous locations, the power supply, control cabinet,
and all other electrical equipment must be located outside Class I or II, Division 1 and 2 hazardous areas in accordance with NFPA-33 and EN
50176.
Turn the power supply OFF before working on
the equipment.
Test only in areas free of ammable or combustible material.
Testing may require high voltage to be on, but
only as instructed.
Production should never be done with the safety
circuits disabled.
Before turning the high voltage on, make sure no
objects are within the sparking distance.
Toxic Substances
Spray Area
Certain material may be harmful
if inhaled, or if there is contact
with the skin.
Explosion Hazard –
Incompatible Materials
Halogenated hydrocarbon sol-
vents for example: methylene
chloride and 1,1,1,-Trichloroethane are not chemically
compatible with the aluminum
that might be used in many system components. The chemical
reaction caused by these solvents reacting with aluminum
can become violent and lead to
an equipment explosion.
Follow the requirements of the Material Safety
Data Sheet supplied by coating material manufacturer.
Adequate exhaust must be provided to keep the
air free of accumulations of toxic materials.
Use a mask or respirator whenever there is a
chance of inhaling sprayed materials. The mask
must be compatible with the material being
sprayed and its concentration. Equipment must
be as prescribed by an industrial hygienist or
safety expert, and be NIOSH approved.
Aluminum is widely used in other spray application equipment - such as material pumps,
regulators, triggering valves, etc. Halogenated
hydrocarbon solvents must never be used with
aluminum equipment during spraying, ushing,
or cleaning. Read the label or data sheet for the
material you intend to spray. If in doubt as to
whether or not a coating or cleaning material is
compatible, contact your coating supplier. Any
other type of solvent may be used with aluminum
equipment.
5
LN-9521-00.4
Ransburg
INTRODUCTION
Aerbell 33 Rotary Atomizer - Introduction
FEATURES
Features which make the Aerobell 33TM Rotary
Atomizer advantageous for use in electrostatic
applications include:
• Factory Mutual listed. Limited energy is avail-
able to prevent ignition of ammable air/solvent
mixtures.
• Assembly components and bell made of durable
plastic material for optimum mechanical strength
and solvent resistance.
• Proven long life turbine motor capable of speeds
up to 55k rpm at minimal air consumption. (See
"Specications" in the "Introduction" section of
this manual for bell cup speed ratings.)
• 57mm and 30mm diameter bell assemblies
available for application exibility.
• Annular shaping air passage design providing
excellent pattern control at minimal air consumption.
• Aerodynamic design for ease of cleaning ex-
ternal surfaces.
• Assembly can be swiveled to provide oblique
spray angles for better paint coverage in difcult
areas of the product.
• Turbine air exhausts behind bell, keeping paint
and solvent contamination out of atomizer interior and keeping back of bell clean.
• Speed readout (or control) uses reliable magnet-
ic pickup for ber-optic transmission of rotational
speed data.
GENERAL DESCRIPTION
• Fast color changes are achieved using center
feed uid delivery, integral brake air, high ow
regulator and the uid valves which provide
for simultaneous paint push out while solvent
washes the feed tube and bell cup.
• Bell wash is quick and efcient. Solvent usage
is controlled at the feed tube with an internally
mounted solvent valve.
• Less waste to the spray booth, with the dump
valve located internally next to the feed tube.
• More precise uid regulation, with an (optional)
internal regulator.
• Easy to install and maintain. Hosing and connections are easily accessible at either the rear
of the assembly or by sliding back the protective
rear cover.
• Quick removal of the turbine assembly for off-line
repair.
Aerobell 33 System
The Ransburg Aerobell 33 is a high speed rotary
atomizer system designed to meet agency safety
requirements for safer operation. This system is
incapable of releasing sufcient electrical or thermal energy during normal operating conditions to
cause ignition of specic hazardous materials in
their most easily ignited concentrations in air (See
NFPA-33 Regulations). The Aerobell 33 provides
electrostatic application with excellent atomization
and transfer efciency for a wide variety of coating
materials.
W A R N I N G
!
The Aerobell 33 System is designed to
provide safer operation in accordance with
NFPA-33, when used and maintained in a
proper manner. Equipment cleanliness and
proper routine maintenance are required to
maintain safe operating conditions.
LN-9521-00.4
6
Aerbell 33 Rotary Atomizer - Introduction
Ransburg
Bell Assembly
This plastic bell cup is coated with a proprietary
resistance material for transfer of electrostatic
charge to the atomized uid. Two different sized
bell cups are available: 30mm and 57mm. Each
bell cup size has a matching shroud and shaping
air ring. (See Table "A", Figure 16.)
Air Turbine Assembly
The air bearing turbine assembly with bell cup is
mounted to the air manifold assembly with four
socket head cap screws. The front resistor tube
is also attached to the air turbine assembly and
provides the high voltage connection to the motor
shaft and bell.
Air and Fluid Manifold Assembly
This unit mounts onto the insulator support rod
assembly with a swivel post. The uid valve
manifold block is mounted directly onto the back
side, connecting with uid passages internal to the
manifold. Tube connections for valve control lines
protrude through the rear shroud plate. The uid
feed tube is screwed into the rear of this manifold
block and the air turbine assembly mounts to the
front with four socket head screws.
Insulator Support Rod Assembly
The air and uid manifold assembly mount onto
the insulator support rod assembly, which in turn
is attached to the reciprocator or support stand.
Rear Shroud Assembly
The rear shroud assembly consists of a rear
bulkhead which provides a passageway for uid
and air tubes, mounting rods to connect the rear
bulkhead to the air and uid manifold assembly, a
uid regulator mounted onto the outside surface
of the rear bulkhead, and a resistor module nested between the rear bulkhead and air manifold
assembly.
Power Supply and Junction Tank
The Aerobell 33 System operates with a variety of
high voltage power supplies. The power supplies
operate at output voltages of up to 100,000 volts
DC. Also available is a junction tank which is used
to distribute high voltage to multiple Aerobell 33
assemblies from a single power supply.
W A R N I N G
!
The high voltage equipment that is used in
this application creates a hazard for personnel. The high voltage power supply is not
approved for use inside of the spray booth,
as dened in NFPA-33. This high voltage
power supply can produce sparks which are
capable of igniting coating material.
NOTE
The Aerobell 33 atomizer assembly
includes an internal resistor module and
resistor tube in series which provides appropriate current limiting at the atomizer.
The resistance coating on the outer surface of the bell not only transfers the high
voltage to the bell edge, but also helps to
control the discharge energy at the bell
edge to achieve safe operation.
High Voltage Cables
The SSW-1064, high voltage cable, is used to
connect the power supply to the resistor module
inside the atomizer assembly.
Resistor Module
The module encapsulates the high voltage resistors necessary for control of the electrostatic
charge being fed to the bell through the high
voltage cable.
7
Speed Monitor/Control
The Aerobell 33 rotary atomizer is designed to operate with the Ransburg PulseTrackTM or Atomizer
Module for speed monitoring and/or speed control.
LN-9521-00.4
Ransburg
SPECIFICATIONS
Aerbell 33 Rotary Atomizer - Introduction
Electrical
Power Supply LECU5003 /LEPS5001
Type: (Voltage MasterTM)
76045 / LEPS5002
(MicroPakTM)
Charging Method: Direct
Output Voltage: 30-100 kV Variable
Output Current: 125 µA (Short Circuit)
Turbine Speed
Control:
Atomizer Module
Paint Resistance:* .1 MΩ to ∞
*(Use Model No. 76652, Test Equipment)
Part Sprayability: Determine sprayability
of part to be coated
using 76652, Test
Equipment
(See TE-98-01).
PulseTrack or Eurocard
Mechanical (Cont.)
Bearing Air Supply:
(Nominal) 90 psig (±10 psi)
(621 kPa ±69 kPa)
2.1 scfm (60 slpm)
Shaping Air Supply:
(Nominal) 5-15 psig (34-103 kPa)
4.7-9.8 scfm (134-280
slpm)
Brake Air Supply: 60 psig (414 kPa)
(Nominal)
Maximum Fluid
Pressure Supply: 100 psig (689 kPa)
Fluid Flow Rate: 25-500 cc/minute
Usable Spray
Pattern Diameter:
Bell Cup
Cleaning Time: Approximately 2-3 sec.
(See Figure 6)
Variable (See Figure 5)
15-30 inches (381-762 mm)
Mechanical
Length: 16.5 inches (419mm)
Diameter: 5.6 inches (142mm)
Approximate
Weight: 10.3 lbs. (4.7 kg)
Turbine Type: Air Bearing Impulse Drive
Turbine Air Supply: Variable (See Figures 1-4)
At 30,000 rpm 23 psig (158 kPa)
(Nominal): 7.7 scfm (220 slpm)
Maximum Turbine
Speed: Continuous (Intermittent)
30mm Bell Cup: 40,000 rpm (55,000 rpm)
57mm Bell Cup: 40,000 rpm (55,000 rpm)
Color Change Time:
conguration, uid
pressure, uid viscosity,
uid line lengths, etc.
Speed Readout: Magnetic pickup,
unidirectional ber-optic
transmission
Atomizer
Replacement Time: Less than 2 minutes
Bell Cup
Replacement Time: Less than 2 minutes
Dependent on system
LN-9521-00.4
8
Aerbell 33 Rotary Atomizer - Introduction
Turbine Speed vs. Pressure
70
60
50
40
PSI
30
20
10
0
0 10 20 30 40 50 60 70
Thousands RPM
57mm
Bell
30mm
Bell
Ransburg
Turbine Speed vs. Flow
20
15
10
SCFM
5
0
0 10 20 30 40 50 60 70
Thousands RPM
57mm
Bell
30mm
Bell
Figure 1: Turbine Speed vs. Pressure
57m Bell/Loaded vs. Unloaded
60
PSI
50
40
30
20
10
Load 600 cc/min
Water
Unloaded
0
15 20 25 30 35 40 45 50 55
Thousands RPM
Figure 3: 57mm Bell / Loaded vs. Unloaded
Figure 2: Turbine Speed vs. Flow
57m Bell/Loaded vs. Unloaded
16
14
12
Load 600 cc/min
Water
10
SCFM
8
Unloaded
6
4
15 20 25 30 35 40 45 50 55
Thousands RPM
Figure 4: 57mm Bell / Loaded vs. Unloaded
Bearing Air Flow
Shaping Air Flow
20
18
16
14
12
10
SCFM
8
6
4
2
0
0 5 10 15 20 25
30mm
Bell
57mm
Bell
Pressure (PSI)
Figure 5: Shaping Air Flow
9
2.6
2.5
2.4
2.3
2.2
2.1
2
SCFM
1.9
1.8
1.7
1.6
1.5
55 60 65 70 75 80 85 90 95
Pressure (PSI)
Figure 6: Bearing Air Flow
LN-9521-00.4
Ransburg
INSTALLATION
Aerbell 33 Rotary Atomizer - Installation
AIR FILTER INSTALLATION
The following air lter installation guidelines are
essential for optimum performance.
1. Use only recommended pre-lters and bearing
air lters as shown in Figure 8. Additional system
air ltration (i.e., refrigerted air dryer) may also be
used if desired.
2. Mount the bearing air lter as close as possible
to the Aerobell 33. (Do not mount further than 30
feet away.)
3. Do not use tape, pipe dope, or other thread
sealant downstream of the bearing air lter. Loose
akes of tape or other sealant can break loose
and plug the very ne air holes in the turbine air
bearings.
4. If air heaters are used in the system (to mini-
mize the effect of excessively humid conditions),
and the heated air will exceed 120°F, the heaters
must be located after all lters to prevent damage
to the lter media.
AIR PRESSURE
REQUIREMENTS
Tube
Size
Bearing Air Supply
(B.A)
Bearing Air Return
(B.A)
Turbine Air (T.A)
Shaping Air (S.A)
Brake Air (BRK)
(if used)
Trigger Valve
Control (TV)
Dump Valve
Control (DV)
Solvent Valve
Control (SV)
1/4" O.D.
1/4" O.D.
1/2" O.D.
3/8" O.D.
3/8" O.D.
1/4" O.D.
1/4" O.D.
1/4" O.D.
Paint Fluid Regulator (Optional):
Air Pressure
Requirements
(621kPa ± 69kPa)
(551kPa ± 69kPa)
(413kPa ± 69kPa)
(551kPa ± 69kPa)
(551kPa ± 69kPa)
(551kPa ± 69kPa)
90 psi ±10
80 psi ±10
Variable
Variable
60 psi ±10
80 psi ±10
80 psi ±10
80 psi ±10
LN-9521-00.4
High Flow
Signal Air (High)
Low Flow
Signal Air (Low)
Figure 7: Air Tubing Connections
1/4" O.D.
1/4" O.D.
Variable
70 psi max. (482
kPa)
Variable
80 psi max. (551
kPa)
10
Aerbell 33 Rotary Atomizer - Installation
AIR FILTRATION REQUIREMENTS
Ransburg
Ransburg
Filter Model No.
HAF-503
RPM-417
RPM-418
!
Air must be properly ltered to ensure
extended turbine life and to prevent contamination of the paint nish. Air which is not adequately ltered will foul the turbine air bear-
ings and cause turbine failure. The correct
type of lters must be used in an Aerobell 33
system. The lter elements must be replaced
on a regular schedule to assure clean air.
Pre-lter, removes coarse amounts of oil, moisture &
dirt. Used upstream of RPM-417 pre-lter (used in
systems with poor air quality).
Pre-lter, coalescing type, 136 scfm, 98.5% efciency
particulate removal .3 to .6 micron, max. aerosol passed
1.0 micron, max. solid passed .4 micron (dependent
upon scfm requirement per applicator, one RPM-417
can be used with up to three Aerobell 33 assemblies).
Bearing air lter, coalescing type, 19 scfm, 99.995%
efciency particulate removal .3 to .6 micron, max.
aerosol passed .6 micron, max. solid passed .2 micron
(one per applicator).
C A U T I O N
Description / Specications
Figure 8: Recommended Air Filtration
Replacement
Element Part No.
HAF-15 Element,
One
RPM-32 Elements,
Carton of 4
RPM-33 Elements,
Carton of 8
11
It is the user’s responsibility to en-
sure clean air at all times. Turbine failure resulting from contaminated air will
not be covered under warranty. Figure 8
shows the pre-lter and bearing air lter(s)
which are recommended for use in Aerobell
33 systems. If other lters are incorporated in the system, the lters to be used must
have ltering capacities equal or better than
those shown in Figure 8.
The user must ensure the bearing air
supply is not inadvertently turned off while
the Aerobell 33 air motor is turning. This will
cause air bearing failure.
LN-9521-00.4
Ransburg
Aerbell 33 Rotary Atomizer - Installation
MOUNTING
The Aerobell 33 incorporates its own insulator
mounting rod. The diameter at the rear is 1.9
inches, for mounting to a reciprocator, stationary
stand, or other means of support. The atomizer
assembly is mounted to this horizontal rod by a
3/4 inch insulating post, inserted into a swivel
clamp and secured by four plastic bolts. The
arrangement allows positioning of the front of the
turbine. Normally, the insulator support rod is positioned perpendicular to the conveyor path, with
the swivel providing for left or right adjustment of
the atomizer assembly. The swivel clamp plate
can be inverted to provide a locking mechanism
to hold the applicator in line with the insulator
support rod.
FLUID CONNECTIONS
The paint supply to the Aerobell 33 is connected
at the rear of the atomizer assembly to the regulator. Solvent and dump line connections enter
the housing and are connected to the appropriate
valves. Ports are labeled with blue lettering.
ELECTRICAL CONNECTIONS
Electrical connections to the Aerobell 33 atomizer
assembly consist of only the high voltage cable.
This cable plugs into the resistor module tting,
located at the rear of the assembly, which protrudes
through an opening in the rear bulkhead. After
inserting the cable entirely into the tube and feeling the banana plug make contact on the inside,
tighten the cable compression tting nut around
the high voltage cable with an appropriate wrench.
Reinstall the connector cover with plastic screw.
SPEED MONITOR
CONNECTIONS
A ber-optic cable assembly connects the speed
signal output of the rotary atomizer assembly to
the Pulsetrak Speed Monitor/Control System or
Fotronics
TM**
Atomizer Module.
Fixed
Atomizer
Paint Line
(P.IN)
Solvent Line
(SOL)
Dump Line
(DUMP)
Figure 9: Fluid Tubing Connection Requirements
The normal uid ow range is 25-500 cc/
min. The maximum ow rate must not ex-
ceed 500 cc/min. to avoid solvent or paint
from ooding into the internal portion of the
air bearing motor assembly or front shroud.
.156", .170", or
.188" I.D. PFA
.125" I.D.
PFA
.250" I.D.
PFA
C A U T I O N
!
Pressure
(nominal/max.)
100 psig
(689 kPa)
30-60 psig
(207-413 kPa)
Variable
LN-9521-00.4
12
Aerbell 33 Rotary Atomizer - Installation
INTERLOCKS
Ransburg
The following system interlocks are required to
prevent equipment damage:
1. Bearing air should remain on at all times and
should be shut off only by turning off the main air
to the pneumatic control cabinet.
C A U T I O N
!
When the turbine air is turned off, the tur-
bine will continue to operate or “coast down”
for about two minutes. Provisions should
be made to assure that the operator waits
at least three minutes, after shutting off the
turbine air, before shutting off the main air
supply.
The bell assembly must be removed
when making ow checks. If the paint is
turned on when the bell is mounted on the
motor shaft and not rotating, paint will enter
the shaft and possibly damage the air bearing. Normally pneumatic interlocks will not
allow the paint to trigger on when the turbine
air is off.
2. It should not be possible for the coating material
to be sprayed unless the turbine is
spinning.
3. Two interconnected bearing air ports are provided, one for supply air and the other to be
used as a return signal for measuring bearing air
pressure at the atomizer. If bearing air falls below
60 psi at the atomizer, the turbine air should be
automatically interlocked to shut off.
4. High voltage must be interlocked with the
solvent valve pilot signal to prevent solvent ow
while high voltage is energized.
5. Turbine air and brake air must be interlocked
to prevent both from being used simultaneously.
13
W A R N I N G
!
The high voltage and/or coating material
must never be turned on unless the bell cup
is mounted on the motor shaft and the turbine is rotating.
Pneumatic input to the turbine air inlet
must be controlled to prevent the turbine
from exceeding the maximum rated intermittent speed of 55,000 rpm. (See "Specica-
tions" in the "Introduction" section.)
LN-9521-00.4
Ransburg
OPERATION
Aerbell 33 Rotary Atomizer - Operation
W A R N I N G
!
Operators must be fully trained in safe
operation of electrostatic equipment. Operators must read all instructions and safety precautions prior to using this equipment
(See NFPA 33, Chapter 16).
As with any spray nishing system, operation
of the Aerobell 33 involves properly setting the
operating parameters to obtain the best nish
quality for the coating material being sprayed,
while maintaining correct operation and reliability
of the equipment used. Adjustments to operating
parameters, which cover spraying, cleaning and
on/off control, include:
• Coating Materials
• Fluid Flow Rate Control
• Fluid Valve Control
• Turbine Speed
• Bearing Air Adjustment
• Shaping Air
• Brake Air
• Electrostatic Voltage
• Target Distance
COATING MATERIALS
The Aerobell 33 can be used with a full range of
coating material conductivities. However, with
coatings having very high conductivities, such as
waterborne paints, it may be necessary to isolate
paint supply from ground.
W A R N I N G
!
Electrical discharge of a high electrical
capacitance uid/paint system can cause re
or explosion with some materials. If arcing
occurs when a specic coating materials is
used, turn the system off and verify that the
uid is non-ammable. In these conditions
the system is capable of releasing sufcient
electrical and thermal energy to cause igni-
tion of specic hazardous material in air.
FLUID FLOW RATE
CONTROL
Fluid ow is controlled by an internally mounted
dual diaphragm uid regulator. Reference the
LREG5001, DR-1TM Plastic Fluid Regulator, Manual (latest version) for detailed information.
The regulator features two independently control-
lable ow pressure ranges from the uid output
port. The high ow range port accom-modates
higher uid deliveries thereby providing increased
lm build capabilities and minimal color change
times. The low ow range provides precise uid
delivery control. There are seven low range
models available (1:1, 1:2, 1:3, 1:4, 1:6, 1:8, and
1:10) which can be selected based on the required
uid ow rate.
Separate pilot signals modulate each of the regulator’s two diaphragms to control the amount of
paint being delivered from the regulator to the
atomizer bell cup. These pilot signals can be
controlled manually or automatically with closed
loop ow control system.
LN-9521-00.4
Because of the regulator’s dual range capabilities,
it provides the user exibility of selecting either the
high ow range or the low ow range. Different
coating material viscosities and quick
14
Loading...