Exlar GTX Integrated Roller-Screw Actuators Review: Specs, Price and Applications
Curtiss-Wright Exlar GTX combines a brushless servo motor and inverted roller screw in an integrated linear actuator. The manufacturer’s overview distinguishes GTX060, GTX080 and GTX100 configurations, with separate continuous and peak force limits. It is a motor-and-actuator assembly; a compatible servo drive and the selected feedback complete the electrical axis.
Quick Verdict
A relevant option for electrically controlled industrial linear motion where roller-screw force density and the selected envelope fit the machine. Compare the complete motion and load spectrum rather than applying a broad relative-life claim to every application.
Exlar GTX Integrated Roller-Screw Actuators at a Glance
Specification | Details |
Family | Exlar GTX |
Manufacturer | Curtiss-Wright Exlar |
Construction | Integrated servo motor and inverted roller screw |
Frames in manufacturer overview | GTX060 / GTX080 / GTX100 |
GTX060 example | 2,668 N continuous, 5,336 N peak; selected configuration |
Drive requirement | Compatible external servo drive and feedback selection |
Selection basis | Frame, winding, screw lead, stroke and thermal duty |
Design and Engineering Assessment
A roller screw’s expected travel life depends strongly on the applied load spectrum and maintenance. The manufacturer’s catalogue explicitly treats L10 life as an estimate, not a guarantee. A generic multiple of ballscrew life should not replace a selected load-based calculation.
The GTX assembly integrates motor and screw, while a controller/drive arrangement remains necessary. Motor voltage, feedback, brake and regeneration handling should be matched to the exact actuator before a hydraulic replacement is qualified.
From Motor Rotation to Linear Motion
A screw actuator converts rotary motion into axial travel. Screw lead, gearing and motor behavior determine the relationship between force and speed. A motor torque rating cannot be treated as linear thrust without the transmission relationship and efficiency. The selected screw also introduces mechanical load and lifetime constraints.
Maximum force, top speed, stroke and duty cycle are separate selection limits. They may describe different gearing, windings or operating conditions. Establish a full motion cycle with acceleration, load, dwell and reversal before comparing an electric actuator with another screw drive, a pneumatic cylinder or a hydraulic arrangement.
Mounting, Guidance and Holding
The mechanism should keep the actuator within its specified axial, side-load and moment limits. End fittings, pivot alignment and the support structure influence whether the rod is loaded as intended. Longer strokes can introduce additional column-loading and clearance considerations even when required thrust remains unchanged.
Self-locking, braking and power-off holding depend on the selected transmission and options. Do not infer a complete load-retention function from a screw or gear label. A vertical or spring-loaded mechanism needs a defined response to an interrupted command and loss of power, based on the actual machine arrangement.
Electrical Integration and Acceptance
Choose the motor supply and control interface for the exact actuator configuration. An integrated controller, external servo drive and stepper pulse interface divide responsibility differently. Feedback can observe actuator travel while the external linkage still adds compliance, clearance or geometric error at the workpiece.
Acceptance should use the real load and repeated cycle. Check speed under load, heating, reversals, end behavior and the useful position or force requirement. Preserve winding, screw lead, stroke, feedback, brake and control options so that a service replacement restores the qualified assembly rather than a similar-looking housing.
Applications and Selection
Industrial pressing, positioning and other linear-motion machinery using a qualified servo actuator.
For Exlar GTX Integrated Roller-Screw Actuators, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Price: Request a quote for the exact configuration. Compare the product, compatible control equipment, required mechanical parts, cabling and commissioning as one installed system. A component price alone does not represent the cost of a working automation axis.
Evaluate an alternative against the same duty and acceptance criteria. Match the continuous operating requirement first, then compare transient capability, feedback, mechanical fit and support. This avoids choosing between superficially similar products whose ratings describe different operating conditions.
Pros and Cons
Advantages
Integrated motor and force-dense roller-screw transmission
Several frame, stroke and electrical configurations
Limitations
Requires a compatible servo drive and thermal assessment
Life and relative-performance claims depend on the comparison duty
Who Should Consider Exlar GTX Integrated Roller-Screw Actuators?
Consider Exlar GTX Integrated Roller-Screw Actuators for industrial pressing, positioning and other linear-motion machinery using a qualified servo actuator. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
Exlar GTX Integrated Roller-Screw Actuators FAQ
What is Exlar GTX Integrated Roller-Screw Actuators?
Curtiss-Wright Exlar GTX combines a brushless servo motor and inverted roller screw in an integrated linear actuator.
Which specifications matter most?
Family: Exlar GTX. Manufacturer: Curtiss-Wright Exlar. Interpret the remaining ratings within the selected configuration and operating duty.
What applications should it be considered for?
Industrial pressing, positioning and other linear-motion machinery using a qualified servo actuator.
What is the main advantage?
Integrated motor and force-dense roller-screw transmission. Several frame, stroke and electrical configurations.
What limitation affects integration?
Requires a compatible servo drive and thermal assessment. Life and relative-performance claims depend on the comparison duty.
What is the price?
Request a quote for the selected model, options and delivery terms. Any stated example price applies only to its identified seller configuration and may change.
How should an alternative be compared?
Use the same operating duty, installation envelope and acceptance requirements. Compare the complete system, including the compatible drive or controller, mechanical interfaces and commissioning effort.
What should be specified when ordering?
State the complete model or configuration, intended operating point, mechanical interfaces and required control equipment. Include the relevant environment, accessories and quantity so that the quotation describes a usable system.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
