28 N·m NEMA 52 closed loop Stepper Motor with 2,500 P/R Encoder

NEMA 52 Closed Loop Stepper Motor with 2,500 P/R Feedback

The 130J12205EC-2500 is a NEMA 52 Closed Loop Stepper Motor providing 28 N·m holding torque from a 205 mm body at 6.8 A per phase, with a 24 mm shaft. It combines the heavy-frame format with a 2,500 P/R encoder for finer position feedback than the 1,000 P/R class.

Why High-Resolution Feedback Matters on Heavy Axes

On large loads, a small angular error can translate into a noticeable displacement at the tool or table edge. The 2,500 P/R encoder lets the drive resolve position more finely and correct deviations before they grow. The three-phase winding keeps torque smooth, and the closed loop prevents the silent step loss that can occur when an open-loop stepper meets a torque spike.

Thermal and Mechanical Notes

Holding torque is the standstill rating. Running torque falls with speed, limited by winding inductance and the 6.8 A current rating. closed loop control reduces standing current during dwell, keeping temperature rise in check on intermittent-duty machines.

Specifications

• Frame size: NEMA 52
• Body length: 205 mm
• Phase count: 3-phase
• Phase current: 6.8 A
• Holding torque: 28 N·m
• Shaft diameter: 24 mm
• Feedback: integrated 2,500 P/R encoder

Applications

Applications include CNC machine tools, packaging machinery, factory automation, precision robotic mechanisms, textile and printing machinery, food processing, and automated handling mechanisms. The 28 N·m rating with high-resolution feedback covers heavy rotary tables, machining axes, and material-handling mechanisms. Lyenwsin supplies this NEMA 52 Closed Loop Stepper Motor with matching drives and technical documentation for OEM and retrofit projects.

Integration Support

When retrofitting a large axis, check the existing bracket spacing and the 24 mm shaft coupling before committing to a layout. Confirm the drive cabinet can supply 6.8 A continuously, and ask for the torque-speed curve at your target speed so the thermal margin is visible in advance. Our engineering team will help select the right cable length and encoder interface for your controller.