Nordson RA-16 Customer Product Manual

Rotary atomizer

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RA-16 Rotary Atomizer

Customer Product Manual

Part 107 070C

NORDSON CORPORATION

AMHERST, OHIO

USA

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Page 1 RA-16 Rotary Atomizer Customer Product Manual Part 107 070C NORDSON CORPORATION AMHERST, OHIO...
Page 2 Amherst, OH 44001 Notice This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1996. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Nordson Corporation. The information contained in this publication is subject to change without notice.
Page 5 ......2. Waterborne RA-16 Parts List .......
Page 9: Introduction
Safety Section 1 Safety This section contains general safety instructions for using your Nordson 1. Introduction equipment. Task- and equipment-specific warnings are included in other sections of this manual where appropriate. Note all warnings and follow all instructions carefully. Failure to do so may result in personal injury, death, or property damage.
Page 10 Failure to observe this warning may result in serious injury or death. WARNING: Injection. Do not point this device at yourself or other personnel. Failure to observe this warning may result in serious injury or death. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 11: Qualified Personnel
Unintended uses may result from taking the following actions: making changes to equipment that have not been recommended or described in this manual or using parts that are not genuine Nordson replacement parts failing to make sure that auxiliary equipment complies with approval...
Page 12: Installation
Safety Read the installation section of all system component manuals before 5. Installation installing your Nordson equipment. A thorough understanding of system components and their requirements will help you to install this equipment safely and efficiently. WARNING: Failure to follow these safety procedures can result in personal injury or death.
Page 13: Operation
Make sure all devices are fully functional. Do not operate the system if these devices are not working properly. Do not deactivate or bypass automatic safety interlocks, locked-out electrical disconnects, or pneumatic valves. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 14 An arc can cause a fire or explosion. Keep parts of the body or loose clothing away from rotating parts. Remove personal jewelry and cover or tie back long hair. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 16: Action In The Event Of A System Or Component Malfunction
Allow only qualified personnel to perform maintenance, troubleshooting, 9. Maintenance and Repair and repair tasks. Only persons who are properly trained and familiar with Nordson equipment are permitted to service this equipment. Always wear appropriate protective clothing and use safety devices when working on this equipment.
Page 17 Never troubleshoot the power supply without first disconnecting all external power supplies and discharging the high-voltage capacitors with an insulated screwdriver. Ground electrodes and electrostatic cable ends before touching them. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 18: Material And Solvent Precautions
MSDS for the injected fluid and for any additives, such as solvents, that are in the injected fluid. Also, Nordson recommends that you carry a National Safety Equipment Manufacturers Association (NSEMA) wallet card to give to emergency medical staff in the event of an injection injury. These cards are supplied with the equipment.
Page 19 Use nonhalogenated solvents. Contact your solvent supplier to determine whether your existing materials and solvents contain halogenated hydrocarbons or to obtain a suitable, nonhalogenated hydrocarbon solvent for cleaning and flushing your system. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 20 Contact your coatings, solvent, or adhesive supplier for a nonhalogenated solvent to thoroughly flush the entire system before operating it. If you must continue to use halogenated hydrocarbon solvents, consult your Nordson representative about compatible Nordson components. A1EN−03−[SF−LIQD]−3 Issued 11/95...
Page 21: Disposal
Methylene Chlorobromide Freon Methylene Chloride Propyl Iodide 1-1-1 Trichloroethane Monochlorobenzene Orthodichlorobenzene Perchloroethylene Trichloroethylene Dispose of equipment and materials used in operation and cleaning 11. Disposal according to your local regulations. A1EN−03−[SF−LIQD]−3 Issued 11/95 E 1995 Nordson Corporation All rights reserved...
Page 25: Introduction
Term Definition Bearing air Shop air supplied to the RA-16 rotary atomizer bearing air port. The two bearings within the turbine ride on a thin film of air to eliminate wear on the turbine shaft. Brake air Air input that slows the turbine speed down when needed to stop the rotation of the cup.
Page 26: System Components
Description System Components Figure 2-1 illustrates the basic components of the RA-16 rotary atomizer. 2136001B Fig. 2-1 RA-16 rotary atomizer 1. Shroud 5. Turbine 9. Solvent valve trigger ( -in. NPT) 2. Fluid tube (2 orifice sizes) 6. Dump valve trigger ( -in.
Page 27: System Configurations
Description The RA-16 rotary atomizer fluid delivery system electrostatically applies 2. System Configurations waterborne coating material. Use the RA-16 rotary atomizer with the Iso-Flo system. For information on the Iso-Flo system, refer to the appropriate Iso-Flo system manual. Basic The basic configuration for the RA-16 rotary atomizer fluid delivery...
Page 28: Waterborne
Description Waterborne See Figure 2-2. If you are using waterborne coating materials, the fluid-delivery system will consist of the following: basic RA-16 rotary atomizer fluid delivery system configuration Iso-Flo system Electrostatic Power Supply (EPS8) IFC-100 electrostatic cable 2136002B Fig. 2-2 System configuration for waterborne coating materials 1.
Page 29: Turbine Speed Configurations
Programmable Logic Controller (PLC) an internal feedback loop controls the desired speed. This occurs even if the RA-16 rotary atomizer is not spraying coating material Open-Loop Speed Control In an open-loop configuration, the...
Page 30: Bearing Air
RA-16 rotary atomizer from internal triggering valves. Non-conductive tubing that is compatible with the coating material supplies the material to and from the RA-16 rotary atomizer. The tubing and fittings dictate the maximum fluid pressures. Paint, solvent, or other coating materials flow into a common fluid tube and into the back of the cup through a replaceable nozzle.
Page 31: Theory Of Operation
NOTE: If the cup is not rotating when you trigger the coating material, coating material could go into the turbine. This subsection describes the specifications for the RA-16 rotary 6. Specifications atomizer. Dimensions Length: 31 cm (12.25 in.)
Page 32: Turbine Speed
68 l/min at 5.52 bar (2.4 scfm at 80 psi) Turbine air (unloaded): 425 l/min (15 scfm) at 40,000 rpm Nominal air (includes vector air): 707 l/min (25 scfm) at 40,000 rpm Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 35: Introduction
To mount the RA-16 rotary atomizer, see Figure 3-1 and follow these steps: 1. Screw the mounting stem (5) to the back of the RA-16 rotary atomizer. 2. Unscrew the strain relief nut (2) and then unscrew the magnetic speed pick-up assembly (1).
Page 36 (3) from the valve plate (4) d. push the fluid tube (5) from the front of the RA-16 rotary atomizer through the back of the turbine e.
Page 37 Installation 2. Mounting (contd.) 2136004B Fig. 3-1 RA-16 rotary atomizer mounting stem and speed-sensor cable 1. Magnetic speed pick-up assembly 3. Connector 5. Mounting stem 2. Strain relief nut 4. Speed-sensor housing 107 070C Manual 21-36 E 1997 Nordson Corporation...
Page 38 2136005B Fig. 3-2 Installing a new fluid tube 1. Hex bolts ( -13) 3. Allen-head screws ( -20) 5. Fluid tube 2. Interface plate 4. Valve plate Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 39: Connecting Pneumatics
CAUTION: Operating the air turbine without adequately filtered air or without specified bearing air pressure will lead to premature turbine failure and voids all warranties. To connect the pneumatic lines to the RA-16 rotary atomizer, use the following steps: 1. See Figure 3-3. Connect -in.
Page 40: Connecting The Fluid Lines
4. Paint valve trigger port 2. Vector air port 5. Solvent valve trigger port 3. Bearing air port 6. Turbine air port The RA-16 rotary atomizer has three -in. NPT(F) ports for connecting 4. Connecting the Fluid the fluid lines. Use -in. NPT(M) x -in.
Page 41: Waterborne System
Installation Waterborne System To connect the fluid lines in a waterborne system to the RA-16 rotary atomizer, use the following steps: 1. See Figure 3-4. Make sure the fluid lines (2) are away from the speed-sensor assembly. NOTE: A recommended option is to install a large non-conductive tube (3) around the fluid lines (2).
Page 42: Using The Grooving Tool
5. Cut and groove each tubing end as described in steps 1−4. 2136009A Fig. 3-5 Grooving tool and groove 1. Grooving tool thumb rest 3. PTFE tubing 4. Grooving tool 2. Arrow Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 45: Introduction
The air and fluid pressures given are initial settings. You can adjust these settings to obtain optimum performance. When operating the RA-16 rotary atomizer, make sure the supply air is clean and dry (with 99.99% of 0.1 micron contaminants removed).
Page 46 4. See Figure 4-1. Adjust the vector air regulator (4) to the desired 2. Daily Startup (contd.) pressure. 2136010A Fig. 4-1 Typical RA-16 rotary atomizer pneumatic panel 1. Main air shut-off valve 7. Solvent valve trigger switch 2. Main air filter/regulator 8. Paint valve trigger switch 3. Main air filter 9.
Page 47 Operation 2. Daily Startup (contd.) 2136011A Fig. 4-2 RA-16 rotary atomizer cup assembly 1. Cup 3. Deflector 2. Distributor 2136016A Fig. 4-3 Cup installation and removal 1. Turbine shaft 3. Cup 2. Charge ring 107 070C Manual 21-36 E 1997 Nordson Corporation...
Page 48: Daily Shutdown
5. See Figure 4-1. Adjust the turbine air regulators (5) until you obtain the desired speed. 6. Turn on the paint valve trigger switch (8). When the RA-16 rotary atomizer begins to spray coating material, check the spray pattern. NOTE: If you need to modify the spray pattern, adjust the fluid, vector air, or turbine air pressures.
Page 49: Long-Term Shutdown
See Figure 4-1. For long-term shutdown, do the following: 4. Long-Term Shutdown 1. Follow steps 1−7 in Daily Shutdown. 2. Flush the tube connecting the paint line to the RA-16 rotary atomizer with compatible cleaning solution as described in the Flushing the System section.
Page 53: Introduction
This section provides instructions for maintaining the RA-16 rotary 1. Introduction atomizer. To keep the RA-16 rotary atomizer operating at maximum efficiency, follow these instructions carefully. For daily maintenance, perform the following steps: 2.
Page 54: Weekly
If there is coating material in the weep hole tubing, refer to Repairing the Fluid Valves in the Repair section. 2136012B Fig. 5-1 Fluid valve weep hole 1. Weep hole 2. Paint/solvent valve Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 55: Long-Term
Periodically check the electrostatic system to make sure the operator, RA-16 rotary atomizer, EPS8, IFC-100 cable, and all conductive materials within the spray area are connected to a true earth ground. Make sure all electrostatic equipment maintains correct resistance values.
Page 59: Introduction
Coating material wraps back on RA-16 rotary atomizer cover, shroud, or both Coating material leaks from paint, solvent, or dump valves Coating material does not spray out of RA-16 rotary atomizer Coating material leaks from weep hole in paint, solvent, or...
Page 60: Troubleshooting Procedures
Check flexibility of pneumatic tubing. Water in air lines Clean or replace the three air filters located at the pneumatic control panel. RA-16 rotary atomizer cup out of Replace cup if damaged. Clean cup if balance or damaged there is coating material build-up.
Page 61 (contd.) reset. If light won’t reset, then a fuse has blown on loop-controller board. Repair connection or replace RA-16 rotary atomizer loop-controller board. NOTE: If speed-sensor cable is disconnected, the hardware fault light will go on.
Page 62 RA-16 rotary booth air flow. Replace booth filters if atomizer cover, shroud, necessary. or both Conductive build-up Clean RA-16 rotary atomizer with non-polar solvent. Change in resistivity of coating Check resistivity of coating material. material Adjust as required.
Page 65: Introduction
Trigger the paint and solvent valves to relieve any remaining system pressure. 3. Turn off the main air supply to the RA-16 rotary atomizer to shut off the bearing air. 4. See Figure 7-1. Remove the cup assembly from the turbine shaft, as follows: a.
Page 66 Repair 5. See Figure 7-2. Remove the non-conductive screws (2) holding the 2. Disassembling the RA-16 rear shroud (1) to the valve plate (6). Remove the rear shroud. Rotary Atomizer (contd.) 6. Remove the non-conductive screws (2) holding the front shroud (4) to the turbine (5).
Page 67 Repair 2. Disassembling the RA-16 Rotary Atomizer (contd.) 2136021B Fig. 7-2 RA-16 rotary atomizer disassembly 1. Rear shroud 3. Charge ring assembly 5. Turbine 2. Non-conductive screws 4. Front shroud 6. Valve plate 107 070C Manual 21-36 E 1997 Nordson Corporation...
Page 68: Replacing The Side (Paint, Solvent, Or Dump) Valves
(2) to the valve plate (1). Remove the weep-hole tubing (3). 3. Remove the valve cartridge (2), as follows: a. Turn on the main air supply to the RA-16 rotary atomizer. b. Place your hand over the top of the valve cartridge.
Page 69: Removing And Repairing The Turbine
Removing and Repairing the To remove the turbine, perform the following steps: Turbine 1. Follow steps 1 through 7 in Disassembling the RA-16 Rotary Atomizer earlier in this section. 2. See Figure 7-4. Disconnect the speed-sensor connection (1) from the speed-sensor cable.
Page 70 Fig. 7-4 Turbine removal and repair 1. Speed-sensor connection 4. Valve plate 7. Fluid tube 2. Interface plate 5. Nozzle 8. Hex bolt 3. Allen-head screw 6. Turbine Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 71: Replacing The Fluid Tube
4. Press the fluid tube (7) out through the back of the turbine (6). 5. Insert a new fluid tube (7). 6. Follow steps 2 through 7 in Assembling the RA-16 Rotary Atomizer later in this section. Repairing the Speed Sensor To repair the speed sensor, perform the following steps: 1.
Page 72: Removing The Speed-Sensor Housing
NOTE: Lubricate the O-ring before installing. 5. Install a new speed-sensor housing (1) with the required O-ring (2). 6. Reassemble the speed-sensor assembly. 7. Follow steps 4 and 5 in Assembling the RA-16 Rotary Atomizer later in this section. 2136022B Fig.
Page 73: Assembling The Ra-16
6. Attach the shroud to the valve plate (4) with the two non-conductive screws. The notched edge on the front shroud should align with the “C“. 7. See Figure 7-1. Attach the cup assembly to the RA-16 rotary atomizer, as follows: a. Insert a -in.
Page 74: Repairing The Fluid Valves
To repair the side valves, follow these steps: Solvent, or Dump) Valves 1. Complete steps 1 through 6 in Disassembling the RA-16 Rotary Atomizer earlier in this section. 2. Complete steps 2 and 3 in Replacing the Paint, Solvent, or Dump Valves earlier in this section.
Page 75 7-11 Repair Repairing the Side (Paint, Solvent, or Dump) Valves (contd) 2136017A Fig. 7-7 RA-16 rotary atomizer side valves 1. O-ring 4. Spring seal 7. Spring 2. Gland nut 5. Valve body 8. Valve adjustment cap 3. O-ring 6. Valve assembly...
Page 79: Introduction
Parts Section 8 Parts To order parts, call the Nordson Customer Service Center or your local 1. Introduction Nordson representative. Use this five-column parts list, and the accompanying illustration, to describe and locate parts correctly. Using the Illustrated Parts Numbers in the Item column correspond to numbers that identify parts in illustrations following each parts list.
Page 80 Parts See Figures 8-1 and 8-2. 2. Waterborne RA-16 Rotary Atomizer Parts List Item Part Description Quantity Note — 181 732 Atomizer, RA-16, waterborne 237 130 S Shroud, rear 982 876 S Screw, shroud, -20 x 0.62 in. 235 711...
Page 81 940 100 S O-ring, hotpaint, 0.250 x 0.375 x 0.063 in. 941 351 S O-ring, Buna-N, 1.94 x 2.12, 55 duro 181 736 S Turbine, air, center feed, RA-16 230 928 S Plug, turbine exhaust 182 233 S Sleeve, resistor...
Page 82 Parts 2. Waterborne RA-16 Rotary Atomizer Parts List (contd.) 2136023B Fig. 8-1 Waterborne RA-16 rotary atomizer Manual 21-36 107 070C E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 83 Parts 2. Waterborne RA-16 Rotary Atomizer Parts List (contd.) 2136024B Fig. 8-2 Waterborne turbine and multi-valve housing 107 070C Manual 21-36 E 1997 Nordson Corporation All rights reserved Issued 9/97...
Page 84: Valve Parts Lists
S O-ring, hot paint, 0.938 x 1.063 x 0.063 940 140 S O-ring, hot paint, 0.5.00 x 0.625 x 0.063 NOTE A: Item is part of the RA-16 rotary atomizer side valve and cannot be ordered separately. Manual 21-36 107 070C...
Page 86: Fluid Tubes, Nozzles, And Cups
Tube, fluid, RA-16, 0.100 ID 181 761 Tube, fluid, RA-16, 0.161 ID (standard) 230 935 Nozzle, fluid, RA-16, 0.080 dia orifice NOTE A: Items are shipped with the RA-16 rotary atomizer. 5. Speed Control Parts Part Description Quantity 181 741...
Page 87: Service Kits
Board, RA-16 speed controller 248 649 Tool, groove, -in. OD tube 181 729 Plug, internal IPS port NOTE A: Item shipped with the RA-16 rotary atomizer. B: Cable is in 8-foot lengths. 107 070C Manual 21-36 E 1997 Nordson Corporation All rights reserved...

Nordson RA-16 Customer Product Manual

Safety

Description

Description (Contd.)

Installation

Operation

Maintenance

Troubleshooting

Repair

Parts

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