35 N·m 3-Phase closed loop Stepper Motor with 2,500 P/R Encoder

35 N·m 3-Phase closed loop Stepper With 2,500 P/R Encoder

The 130J12225EC-2500 is a 2,500 P/R Closed Loop Stepper Motor in a NEMA 52 frame, rated 6.8 A per phase with 35 N·m holding torque and a 24 mm shaft in a 225 mm body. Its 2,500 P/R encoder provides position feedback at a resolution well above the older 1,000 P/R standard.

Encoder Resolution and closed loop Behavior

A 2,500 P/R encoder reports rotor position with finer granularity than lower-resolution designs, letting the drive detect smaller angular deviations and correct them quickly. Combined with the 3-phase winding’s smooth torque, the system holds commanded position reliably on heavy loads. If the rotor slips under a torque spike, the drive recovers the position instead of letting the axis drift.

Load Rating in Practice

Holding torque is rated at standstill with rated current. Running torque declines with speed as the 6.8 A winding builds current against its inductance. closed loop current control reduces standing current during idle phases, which limits temperature rise on machines that hold position between moves.

Specifications

• Frame size: NEMA 52
• Body length: 225 mm
• Phase count: 3-phase
• Phase current: 6.8 A
• Holding torque: 35 N·m
• Shaft diameter: 24 mm
• Feedback: integrated 2,500 P/R encoder

Applications

The motor is applied in CNC machine tools, packaging machinery, factory automation, precision robotic mechanisms, textile and printing machinery, food processing, and automated handling mechanisms. Its 35 N·m rating and high-resolution feedback suit heavy machining axes and large indexing tables.

Selection Notes

Confirm that the drive is rated for 6.8 A per phase and supports the 2,500 P/R encoder input before specifying. For very large rotary tables, verify that the mounting face and shaft keyway match your existing coupling, and allow for the weight of the 225 mm body during installation. Lyenwsin can provide the complete closed loop package with drive and cable set.