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Nordson Corporation

OPERATOR’S CARD

P/N 229836A02

RA-20R Rotary Atomizer

Safety 

WARNING:

 

 

Allow only qualified personnel to

perform the following tasks.  Follow the safety

instructions in this document and all other

related documentation.

WARNING: 

 High-speed rotating equipment

can be hazardous.  Do not touch the cup, or

stand in front or alongside it while it is rotating.

Do not exceed the maximum speed rating.

WARNING: 

 Do not attempt to stop the cup

with your hands or any tool or other object.

Use braking air or let the turbine coast to a

stop.

WARNING: 

 Do not use defective cups.  A

defective cup can quickly damage the turbine

or fail and possibly injure the operator or other

nearby personnel.

WARNING: 

 People and equipment in the

vicinity of high-voltage electrostatic systems

can accumulate a dangerous static charge

unless they are grounded.

WARNING: 

 Shut off the turbine air, turn off

the electrostatic voltage, and relieve the fluid

pressure before you perform maintenance,

troubleshooting, or repair tasks.

To use this equipment safely,

S

always follow the instructions in this operator’s

card.

S

obtain and read the Material Safety Data Sheets

for all materials used.

Introduction 

This operator’s card contains operation, maintenance,

and troubleshooting procedures for the Nordson

RA-20R rotary atomizer.  Refer to the 

RA-20R Rotary

Atomizer

 manual for installation, repair, and parts

information.  Repair and parts information for the

turbine and valves used in the RA-20R rotary atomizer

are contained in separate manuals.

Summary of Contents for RA-20R

Page 1: ...operator or other nearby personnel WARNING People and equipment in the vicinity of high voltage electrostatic systems can accumulate a dangerous static charge unless they are grounded WARNING Shut off...

Page 2: ...at the desired speed 7 Turn on vector air and adjust the vector air pressure to obtain the desired spray pattern 8 Turn on the electrostatic voltage and start production Modifying the Spray Pattern T...

Page 3: ...key ball driver 2 supplied with the RA 20R rotary atomizer through the hole and duckbill seal in the side of the charge ring 1 2 Rotate the cup 4 and push on the driver until it drops into the hole i...

Page 4: ...7 bar 5 100 psi Flow rate maximum 1500 cc min at 7 bar 50 oz min at 100 psi 130 centipoise material at 7 bar 100 psi 0 080 orifice 270 cc min NOTE 130 centipoise is approximately S 53 seconds on Zahn...

Page 5: ...slowly or oscillates Turbine or bearing air pressure low Leaking O ring in transition plate Turbine air regulators not set properly Turbine air bearings worn or plugged Cup out of balance or damaged C...

Page 6: ...tributor cup assembly for use with emulsions Replaces distributor cup assembly part 295369 Premium Finish Cup The premium finish cup retainer and nozzle must be used together Part Description Quantity...

Page 7: ...7 Fluid Tubes Part Description Quantity Note 181 761 Tube fluid 0 160 in dia orifice 1 168 671 Tube fluid 0 100 in dia orifice 1...

Page 8: ...8 Issued 2 11 Original copyright date 1997 Nordson and the Nordson logo are registered trademarks of Nordson corporation Viton is a registered trademark of E I DuPont de Nemours Co...

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