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Electric linear actuators offer advantages over pneumatic alternatives

09 March 2014

Thomson Industries' new PC Series precision, electric linear actuators for continuous duty applications, offer high power density and clear advantages over traditional pneumatic linear actuators.

Traditional pneumatic actuator systems operate continuously, typically at 10-15 percent efficiency and also carry the high maintenance costs of compressors and air leaks.

High efficiency ball screws employed in the new Thomson PC Series electric linear actuators have efficiencies of over 80 percent and use energy only on demand.

Converting from pneumatic to electric actuation, for many applications, can generate in one year energy savings per axis which exceed the cost of the new actuator.

Thomson’s PC Series electric linear actuators offer new flexibility to machine designers who frequently need to change set-ups to run different products or processes. Changing end stops or velocity profiles can be done on the fly with electric actuators, maximizing productivity and reducing scrap.

The PC Series is similarly well-suited for food processing and packaging, material handling and factory automation applications where high accuracy and reliability and 100% duty cycle operation is required. They feature an IP65 rating, and smooth exterior profile which makes them ideal for wash down applications.

 This new generation of electric linear actuators from Thomson offers a lot of power in a small package size which allows machine designers to reduce their machine footprint. PC Series actuators in sizes 25, 32 and 40 have square sizes of only 34mm, 45mm and 55mm, respectively; yet deliver as high as 6,000 N of thrust force.

Stroke lengths of up to 1,200mm are available, twice as long as most competitive electric actuators in comparable frame sizes. The Thomson PC Series also conforms to ISO 15552 for mechanical interfaces and adapters, making machine upgrades quick and easy.

The PC-Series actuators allow users to easily mount their own motor using the Thomson RediMount system for quick and reliable installation with guaranteed alignment. Motor mounting for both in line and parallel axis units can be accomplished in less than 5 minutes, ensuring trouble free installation for over 600 pre-engineered motor configurations.

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