Closed-Loop Stepper Motor Kit 12N·m 6A with HB860H Driver

High-Accuracy Closed-Loop Stepper Motor Kit

This closed-loop stepper motor and driver set is designed for applications that demand stable, repeatable positioning and reliable motion control. The hybrid two-phase motor (model 86HB250-156B) delivers up to 12 N·m holding torque at 6 A per phase, with a 1.8° step angle for fine incremental movement. Paired with the HB860H driver, it offers efficient operation with reduced heating and smooth low-speed performance.

The closed-loop control uses feedback from an encoder combined with a space vector current control algorithm to minimize position error, reduce low-frequency resonance, and improve overall motion smoothness. With a rated speed of 1000 rpm and a maximum speed of 2000 rpm, this kit is well-suited for CNC axes, 3D printing platforms, laser systems, engraving, woodworking, and packaging machinery where consistent step accuracy and fast response are required.

Why It's a Smart Choice

• Stable, precise positioning - 1.8° step angle, 12 N·m static torque, and closed-loop feedback help maintain accurate position under varying loads.
• Efficient, low-heat operation - Optimized current control reduces motor heating and improves efficiency during continuous duty cycles.
• Ready-to-integrate kit - Includes HB860H driver, 86HB250-156B motor, and 3 m cable, simplifying installation into new builds or upgrades.

FAQ

Q: What power supply does the HB860H driver require?
A: The driver operates from AC 20-70 V or DC 30-100 V. Choose a supply that matches your system requirements and allows sufficient current headroom.

Q: What are the main motor dimensions?
A: The motor has a fuselage length of 156 mm (total length 176 mm), body size approximately 138 × 69.5 × 86 mm, a 73 mm front mounting diameter, and a 33 mm shaft length with a 5 × 5 × 25 mm keyway.

Q: Is this suitable for CNC or laser machines?
A: Yes. The high torque, closed-loop feedback, and speed range of 1000-2000 rpm make it suitable for CNC axes, laser cutters, engravers, and similar precision motion equipment.

Q: What is included in the package?
A: The kit includes 1 × HB860H driver, 1 × 86HB250-156B closed-loop stepper motor, and 1 × 3 m connection cable.