NEMA23 closed loop Stepper Motor With Brake – 2.8 N·m, 4.0 A Phase Current

Higher Torque for Loaded NEMA 23 Axes

The 57J18100EC-1000-LS-SCG is a NEMA23 closed loop Stepper Motor With Brake producing 2.8 N·m holding torque at 4.0 A phase current. A 100 mm body, an 8 mm shaft, and a built-in 1,000 P/R encoder complete the package. In the NEMA23 range this is a higher-torque build, suitable for axes that carry real mechanical loads rather than only light indexing. Lyenwsin supplies it for desktop CNC, robotics, and general motion control.

closed loop Control with 1,000 P/R Encoder

Feedback from the integrated 1,000 P/R encoder lets the drive correct position error during motion and at standstill. This removes the step-loss uncertainty of open-loop stepping and lets the axis operate closer to its torque limit. The result is more usable torque for the same motor size.

Integrated Brake

The brake holds the rotor with power off, covering vertical axes and any stop where the machine must not back-drive. On desktop CNC and robotic arms this prevents the tool or gripper from sagging between commands.

Specification List

• Phase type: 2-phase bipolar
• Frame size: NEMA23 (57 mm)
• Body length: 100 mm
• Holding torque: 2.8 N·m
• Phase current: 4.0 A
• Shaft size: 8 mm
• Integrated encoder: 1,000 P/R
• Brake: integrated holding brake

Where the Motor Fits

Applications include CNC machine tools, packaging machinery, factory automation, precision robotic mechanisms, textile machinery, printing machinery, food processing, and automated handling mechanisms. For robotics, the 8 mm shaft and 2.8 N·m rating suit joints and linear actuators in the mid-load class.

Mounting and Wiring

Use the standard NEMA23 flange and four-bolt fixing. Keep brake wiring separated from phase wires to avoid induced noise on the encoder line. Confirm the brake voltage and current in the datasheet before connecting it to the machine power supply. As a distributor, Lyenwsin can match the motor with a suitable closed loop drive and provide the wiring guidance your technician needs.