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.

    Continue Reading

    Sponsored Recommendations

    June 27, 2025
    Ensure workplace safety and compliance with our comprehensive Lockout/Tagout (LOTO) Safety Training course. Learn critical procedures to prevent serious injuries.
    June 27, 2025
    Join our expert webinar to discover essential safety control measures and best practices for engineering a truly safe and compliant industrial environment.
    June 25, 2025
    An innovative aircraft with electric drives combines the best of both worlds. The cross between drone and helicopter could mean significantly faster and more efficient air emergency...
    June 25, 2025
    Effective when other materials fail, ceramics are particularly suitable for applications requiring wear and chemical resistance, sliding characteristics or biocompatibility. Discover...

    Voice your opinion!

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