Scanning for Ideas: Roller-screw actuators use almost any motor

April 26, 2012
The new K Series actuators from Exlar, Chanhassen, Minn. , mount to most types of motor and are available in several configurations and price points

The new K Series actuators from Exlar, Chanhassen, Minn. , mount to most types of motor and are available in several configurations and price points. They also have dimensions and form factors consistent with ISO metric pneumatic cylinders, so they make good replacements for air cylinders, as well as hydraulic ones.

The actuators’ corrosion-resistant, anodized aluminum housings are sealed to provide IP65 protection. The units operate in temperatures up to 175°F. The standard rod is nickel-plated steel with a 304 SS rodend insert, which reportedly gives the rod excellent wear characteristics. Mounting options include front and rear flange, rear clevis and eye, adjustable side trunnion, end angles, and foot mounts.

For roller screw versions, the maximum rated input is 5,000 rpm, with speeds ranging from 9.8 to 32.8“ips. The maximum allowable force ranges from 675 to 1,800 lb-in.

There are four levels in the K Series. The KT Series is for high loads and cycle rates. The KX Series provides high performance in a range of demanding applications. The KM Series, like KT and KX Series, use roller screws, but the KM actuators are the most economical of the roller-screw actuators. The KA Series use an Acme screw and works well in applications that position and hold a load.

© 2012 Penton Media, Inc.

Sponsored Recommendations

March 31, 2025
Unlike passive products - made of simple carbon springs - the bionic prostheses developed by Revival Bionics are propulsive, equipped with a motor and an artificial Achilles tendon...
March 31, 2025
Electric drives are a key technology for the performance of machines, robots, and power tools. Download this guide for an introduction to high-quality mechatronic drive systems...
March 31, 2025
Discover the world of maxon drive technology: motors, gearheads, sensors, controllers, and accessories. Configure your drive system online, including all relevant product and ...
March 31, 2025
Share current page XSun designs and manufactures a drone that is both energy-independent and can make its own decisions, for fully-automated missions. The company needed reliable...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!