Scanning for Ideas: Compact stepper-motor actuator fills the bill

May 10, 2012
The Digit, a stepper-motor actuator from Ultra Motion, Cutchogue, N.Y., is based on an in-line design that couples the motor directly to the leadscrew

The Digit, a stepper-motor actuator from Ultra Motion, Cutchogue, N.Y., is based on an in-line design that couples the motor directly to the leadscrew. This makes for a compact package, one that measures 5.4-in. long when equipped with a NEMA-176 motor and about 6.6-in. long when a NEMA-23 stepper motor is used. Coupling the motor to the leadscrew with an Acme or ball nut gives the actuator more accuracy and a longer life.

Repeatability of the Digit is ±0.00004 in., and resolution is 0.00004 in./step. The device can exert up to 400 lb of force and move at up to 15 ips.

© 2012 Penton Media, Inc.

Sponsored Recommendations

April 16, 2025
Clean. Compact. Less heat.
April 16, 2025
SEW-EURODRIVE Introduces DR2C motor, IE5 Ultra-Premium Efficiency Motor
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...

Voice your opinion!

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