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Linear Actuator Line Offered with New Options



WhisperTrak industrial linear actuators, now available with options for smarter control, and higher load handling and speed, are suited for medical, personal mobility, material handling, marine and structural automation applications.

"WhisperTrak offers the benefits of a truly industrial linear actuator and combines them with a compact and easy-to-use design that complements the aesthetics of factory equipment," said a company spokesperson.

Thomson Industries, Inc., a manufacturer of mechanical motion control solutions, has expanded its WhisperTrak actuator line to give motion system designers greater ability to extend quiet, compact actuation to more demanding applications. New additions to the WhisperTrak linear actuator line double force-handling capability from 2 kN to 4 kN; provide higher-speed operation at 2 kN; and offer new options for low-level switching, limit switching and position control at both 2 kN and 4 kN operation.

"We had initially developed the WhisperTrak line for lower-load applications that benefit from a sleek, compact design, such as patient handling, personal mobility and office operations," said Travis Gilmer, Thomson Product Line Specialist. "When system designers saw the whole package, though, they wanted it for higher force applications as well. To deliver that, we doubled the available load capacity and bundled in some of the advanced onboard electronics capabilities we have been advancing across all of our product lines. The result is a quiet, intelligent actuator with high power density."

The 4 kN WhisperTrak offering is rated for 4 kN (900 lbs.) with load speed at 4 mm/sec (0.16 in./sec). The 2kN version is rated for 2,000 kN (450 lbs.) with load speeds of up to 8 mm/s (0.31 in./sec). All models can be specified for 12- or 24-volt input with stroke lengths available between 100 and 500 mm (3.94 to 19.69").

WhisperTrak industrial linear actuators, now available with options for smarter control, and higher load handling and speed, are suited for medical, personal mobility, material handling, marine and structural automation applications.

With the recent WhisperTrak expansion, designers can choose from among the following electronics options:

  • Five-wire, low-level switching with electronic limit switches for applications that require switching of high-amperage current. Electronic limit switching (ELS) automatically cuts power to the actuator when a preset threshold is reached. It is valuable for both control precision and safety, and Thomson originally offered it bundled with low-level switching in a 5-wire assembly only. Low-level switching can be valuable for wiring high-current draw loads into a programmable logic controller or small battery.
  • Two-wire switching with electronic limit switches only, which simplifies wiring and installation for applications that require process start/stop location information but do not require low-level switching. Those who do not need low-level switching can now get WhisperTrak with ELS functionality embedded in the board of a 2-wire actuator and get the benefits of ELS without the cost and complexity of unnecessary wiring.
  • Embedded potentiometer and digital encoder with electronic limit switches, which free designers to use position feedback for other purposes. Embedded ELS also gives designers more control flexibility for lower loads or for applications not using low-amperage controls. To determine when the end of a WhisperTrak stroke had been reached, users have had to control 100% of stroke or run control logic fed by wired-in devices such as non-contact sensors or Hall encoders. Embedding ELS into the firmware, however, retains end-of-stroke protection without the need for additional programming and configuration. Users can now run the operation up to the end of the stroke without worrying about damaging the actuator or control configuration.

The new WhisperTrak offerings have the same ruggedness as original Thomson actuators. This includes an IP67 static environmental rating, which provides the ability to operate in harsh conditions in which they are exposed to wash down, rain and dust without the use of an additional cover. All are ETL listed for use on medical devices and conform to medical equipment safety standards AAMISTD-ES60601-1, IEC 60601-1 and CSA CERFTIFIC C22.2 60601. WhisperTrak actuators are maintenance free and have an average life of 10,000 cycles at the maximum load capacity.

For more information contact:

Thomson Industries, Inc.

203A West Rock Road

Radford, VA 24141

540-633-3549

Thomson@thomsonlinear.com

www.thomsonlinear.com

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