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GTF actuators
Installation & Service Instructions
Rev. A | PN86004 | 2/13/25
This document does not contain any export-controlled technical data.
Information furnished by Exlar Corporation is believed to be accurate and reliable. However, no responsibility is assumed by Exlar Corporation
for its use. Exlar reserves the right to change the design and operation of the equipment described herein and any associated motion products
that may appear in this document. Information in this document pertaining to equipment not furnished by Exlar should be confirmed by that
equipment manufacturer. Exlar assumes no responsibility for changes to information by other manufacturers or errors in that information or the
description of that information. Information in this document is subject to change without notice.
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Related Manuals for Curtiss-Wright Exlar GTF Series
Summary of Contents for Curtiss-Wright Exlar GTF Series
- Page 1 GTF actuators Installation & Service Instructions Rev. A | PN86004 | 2/13/25 This document does not contain any export-controlled technical data. Information furnished by Exlar Corporation is believed to be accurate and reliable. However, no responsibility is assumed by Exlar Corporation for its use.
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Page 2: Table Of Contents
7.0 TROUBLESHOOTING..............................21 8.0 PRODUCT RETURNS ..............................21 9.0 CERTIFICATIONS ................................22 9.1 Importer Requirements ............................24 9.2 Distributor Requirements ............................24 10.0 WARRANTY AND LIMITATION OF LIABILITY ......................25 2 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 3: Introduction
1.0 INTRODUCTION 1.1 GENERAL PRODUCT DESCRIPTION GTF actuators feature a robust planetary roller screw mechanism integrated into the rotor and housing of a brushless servo- motor that is optimized for use in food and beverage processing applications. This unique design combines the high speed and high load capacity of the roller screw with the high torque-to-volume ratio of a brushless servomotor that suitable for use in applications subjected to occasional wash-down. -
Page 4: Safety Considerations
Indicates a potentially hazardous situation which could result in property damage or minor to moderate injury. IMPORTANT! Identifies statements that provide important information to help ensure safe and trouble-free installation and operation. 4 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 5: System Configuration
2.0 SYSTEM CONFIGURATION 2.1 GTF ACTUATOR GTF actuators provide a robust solution for long-life, continuous-duty applications even when environmental contaminants are an issue. In most rotary-to-linear devices, critical mechanisms are exposed to the environment and must be frequently inspected, cleaned and lubricated. In contrast, GTF actuators are designed with all converting components mounted within sealed motor housings. -
Page 6: Mechanical Installation
Stainless steel rear clevis (only with rear clevis mounting options) 9 – Rear power-off holding brake 10 – Stainless steel anti-rotate (only with front flange) Figure 2 – Standard configurations 6 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 7: Mounting Options
3.2 MOUNTING OPTIONS The GTF actuators can be mounted in three different configurations: 3.2.1 Hygienic Tapped Face Mount The hygienic tapped face mount which uses threaded holes on the front of the actuator and gaskets to seal around the actuator shaft and around the mounting surface interface. Figure 3 –... -
Page 8: Stainless-Steel Front Flange
SECTION A-A THIS HOLE IS ONLY NEEDED WHEN THE ACTUATOR HAS THE ANTI-ROTATE OPTION Figure 6 – GTF060 customer mounting surface features and dimensions 8 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... - Page 9 Once the mounting surface is prepared, place the shaft gasket and face mount gaskets on the actuator as shown and carefully place the actuator into the mounting features. Note: Hygienic EHEDG bolts suitable for use with the GTF face mount option are available from Curtiss-Wright Exlar. www.exlar.com | 952.500.6200...
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Page 10: Gtf Actuator Rear Clevis Mounting
Frequently, a clevis mount is used on the actuator shaft for this configuration. Figure 10 – GTF actuator with rear clevis mount configuration. 10 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 11: Mounting Considerations
3.3 MOUNTING CONSIDERATIONS 3.3.1 Actuator Alignment IMPORTANT! Aligning the GTF actuator with respect to the load it is moving is critical. Any misalignment will decrease the life of the actuator’s components and may adversely affect application performance. CAUTION! Excessive side load on the actuator output rod will dramatically reduce the life of the actuator and should be avoided. -
Page 12: Anti-Rotation Assembly Using Customer-Supplied Mounting Plate
Torque 0.6 Nm (5 in-lbs) GTF080: 2.5mm Torque 0.6 Nm (5 in-lbs) GTF100: 5mm Torque 4.6 Nm (41 in-lbs) Figure 12 – Anti-rotation Assembly (shown in standard location) 12 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... - Page 13 Actuator Main Rod Gasket Face Plate Gasket Flange Plate Screws Customer Flange Plate A/R Bushing A/R Clamp Screw A/R Bar A/R Clamp A/R Bar Screw Figure 13 – Exploded View of Customer Supplied Mounting Plate with Optional Anti-Rotate Assembly. www.exlar.com | 952.500.6200 GTF Actuator Installation &...
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Page 14: Electrical Installation
• Do not exceed the cable bend radius limit. Figure 14 – Recommended drip loop for IP69K extension cable option Figure 15 – Recommended mounting orientations 14 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 15: Amplifier Pinouts And Connections
4.3 AMPLIFIER PINOUTS AND CONNECTIONS GTF actuators are designed to seamlessly integrate with leading amplifier manufacturers’ products, allowing the use of ampli- fier manufacturers’ supplied cables. Actuator connections will vary depending on the amplifier used to operate the actuator. (Consult the GTF Actuator catalog or the Exlar website for compatible amplifiers.) 4.4 CONNECTING OPTIONAL EQUIPMENT 4.4.1 Feedback Devices –... -
Page 16: Startup
REV = Motor revolutions RPM = Motor revolutions per minute T = Motor torque NOTE: Each of the above relationships requires proper anti-rotation of the actuator rod. 16 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 17: Amplifier Wiring
5.1.4 Amplifier Wiring Each brand of brushless motor amplifiers may have unique wiring requirements, parameter settings, and operational principles that affect how the actuator operates. For more information on sizing and selecting GTF actuators and the brushless servo motor amplifiers used to power them, consult the sizing and selection section of the GTF actuator catalog. 5.2 GENERAL STARTUP PROCEDURE IMPORTANT! Exlar recommends testing new systems prior to live operation (see example startup procedure below). -
Page 18: Maintenance Procedures
Speed – The rotational speed of the actuator will generate heat (thus raising the grease temperature) and potentially resulting in lubricant being thrown off the roller screw. 18 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... - Page 19 Load – Load contributes to the stress applied to the roller screw mechanism and the pressure applied to the grease thus impacting the overall lubricant life and relubrication interval. Load directly impacts the amount of power put into the actuator adding to the heat generated by roller screw speed.
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Page 20: Seal Maintenance
Parts Included GTF060 PN 77565 Faceplate, O-ring, bushing, GTF080 PN 71457 seal, wiper, and fasteners GTF100 PN 75536 Figure 19 – Faceplate Assembly Kit 20 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 21: Troubleshooting
7.0 TROUBLESHOOTING GTF actuators are engineered for years of trouble-free operation. If problems are encountered while installing or using the actuator, the information in Figure 14 may help solve the problem. Symptom / Trouble Possible Cause / Troubleshooting Procedure No response from actuator. •... -
Page 22: Certifications
9.0 CERTIFICATIONS 22 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... - Page 23 www.exlar.com | 952.500.6200 GTF Actuator Installation & Maintenance Instructions | 23...
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Page 24: Importer Requirements
• Distributor shall take corrective action necessary when they consider or have reason to believe that the product is not in conformity with its directive(s). 24 | GTF Actuator Installation & Maintenance Instructions Curtiss-Wright | Rev A | PN86004 | 2/13/25... -
Page 25: Warranty And Limitation Of Liability
10.0 WARRANTY AND LIMITATION OF LIABILITY WARRANTY AND LIMITATION OF LIABILITY: Please see our warranty on our website here: https://www.cw-actuation.com/en-gb/ about/terms-conditions for details. Enabled products incorporate technology that is licensed from Rockwell Automation Technologies, Inc. Rockwell Automation Technologies, Inc. has not technically approved, nor does it warrant or support these products. All warranty and support for these products and their application is provided solely by Exlar Corporation. - Page 26 USA – EXLAR Curtiss-Wright 18400 West 77th Street Chanhassen, MN 55317 855-620-6200 (US & Canada) 952-500-6200 CHA_info@curtisswright.com www.exlar.com © 2025 Curtiss-Wright Exlar | 18400 W 77th St, Chanhassen, MN 55317 | www.exlar.com...
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