Robot Stepper Motor is hybrid stepper motor engineered for small‑scale robotic systems. Mainly available in NEMA8‑NEMA23 frame sizes, it features high torque density, low cogging torque, compact form factor and resistance to frequent direction‑reversal shocks. This Robot Stepper Motor comes with standard 1.8° step angle, and 0.9° high‑resolution variant is optional. Widely used for educational robots, compact collaborative robotic arms, AGV joints, sorting robots, bionic robots and robot grippers. It performs joint rotation, gripper opening‑closing and locomotion drive to meet high‑frequency reciprocating and fast‑reversal motion requirements of robots.
High Torque Density, Compact Body for Confined Robot Joint Space
Magnetic circuit of Robot Stepper Motor is optimized for limited joint installation space. It delivers sufficient torque within compact dimensions with light weight, reducing self‑weight load of robot joints and facilitating layout design for multi‑degree‑of‑freedom robots.
Low Cogging Torque for Smooth Motion and Minimal Position Jitter
Optimized stator‑rotor tooth profile and magnet structure suppress torque ripple. Low jitter during low‑speed attitude adjustment improves robotic‑arm positioning smoothness and reduces impact on gripper actions.
Wide Frame & Step‑Angle Selection with Standardized Mounting Interface
Robot Stepper Motor covers NEMA8, NEMA11, NEMA14, NEMA17, NEMA23 frame sizes. 1.8° standard step angle and 0.9° high‑resolution step angle are available. Mainstream 2‑phase 4‑lead configuration is compatible with most robot driver boards and controllers.
Excellent Resistance to Frequent Fast Start‑Stop and Reversal Impact
Winding and bearing structure of Robot Stepper Motor adapts to robot frequent start‑stop and rapid forward‑reverse cycles, withstanding dynamic impact loads for repeated arm swinging and high‑frequency gripper operation.
Stable Open‑Loop Positioning to Lower Overall Robot System Cost
Angle positioning is achieved via pulse signals. Costly servo system is unnecessary for basic applications. Standard stepper drivers are sufficient, ideal for cost‑sensitive educational robots, DIY robotic arms and small‑size commercial robot solutions.
Reliable Holding Torque for Robot Joint Attitude Maintenance
Strong holding torque under powered‑on static state locks joint posture after motion stops. External brake or reduction parts can be omitted in many light‑weight robot applications to simplify joint mechanical structure.
| Robot Stepper Motor | |
|
Dimensions |
Nema 8(20mm), 11(28mm), 14(35mm), 16(39mm), 17(42mm), 23(57mm), 24(60mm), 34(86mm) |
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Step Angle |
Degree 0.9, 1.2, 1.8(Optional or Customized) |
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Torque |
Up to 350mNm without gearbox |
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Rated Current |
0.1A~10A (A/Phase) |
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Gear type |
Planetary gear motor, worm gear motor, helical gear motor |
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Can be used with |
Planetary gearbox, worm gearbox, helical gearbox |
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Package |
carton/wooden box |
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HS codes |
8501109190 |
Q: What are common frame sizes for Robot Stepper Motor?
A: NEMA8 / NEMA11 for miniature bionic robots and grippers; NEMA14 / NEMA17 for educational robotic arms; NEMA23 for small collaborative robots with higher payload.
Q: Can Robot Stepper Motor be replaced by ordinary stepper motor of same frame?
A: Mechanically interchangeable, yet general‑purpose stepper motors lack robot‑oriented optimization for frequent reversal and low jitter, which tends to bring joint shake and heavy impact. Robot‑specific variant is preferred.
Q: Will robot joints equipped with Robot Stepper Motor drop after power‑off?
A: Holding torque only exists under power‑on condition with no self‑locking when power is lost. Brake‑equipped motor or external mechanical stop is recommended for vertical and payload‑carrying joints.
A: Holding torque only exists under power‑on condition with no self‑locking when power is lost. Brake‑equipped motor or external mechanical stop is recommended for vertical and payload‑carrying joints.
A: Open‑loop works for light‑duty educational robots. Encoder‑based closed‑loop version is suggested for applications with heavy load fluctuation and high reliability requirement to avoid step loss.
Q: What drivers are compatible with Robot Stepper Motor?
A: Compatible with standard 2‑phase stepper drivers including TMC silent drivers and pulse‑type stepper boards, supporting Arduino and ROS robot control systems.
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