1.0 N·m Compact Closed Loop Stepper, 57 mm Frame

Overview

The iESS57-36-10-17BC is a 1.0 N·m Compact Closed Loop Stepper built on a 57 mm frame with a 56 mm body and a 17-bit absolute encoder. It is one of the shorter closed loop packages in the range, suited to space-constrained machines where every millimeter of axis length counts. Combining driver and motor in the 56 mm body keeps the whole axis compact and simplifies the wiring plan.

Control and Feedback

The absolute encoder gives the controller a direct read of shaft position, and the closed loop corrects the stepping output in real time. This keeps positioning repeatable for light axes and removes the need for a homing move at startup. For laboratory instruments that power up and run the same routine all day, that means a shorter warm-up and no manual reference step.

Specifications

• Frame size: 57 mm
• Body length: 56 mm
• Holding torque: 1.0 N·m
• Rated current: 4.0 A
• Feedback: 17-bit absolute encoder

Torque and Heat

With 1.0 N·m holding torque and 4.0 A rated current, the unit is intended for light positioning loads. Its low heat generation allows installation in small enclosures, while low vibration contributes to smooth motion in precision stations. The compact rotor keeps inertia low, so the axis accelerates and settles quickly on short moves.

Application Fields

This model is used in factory automation, packaging machinery, robotics and CNC machine tools. The 57 mm frame also fits light CNC duty, lab instruments and desktop automation where a short integrated stepper with absolute feedback is the cleanest way to build a precise axis. Material handling and small indexing mechanisms benefit from the repeatable positioning it delivers.

Selection Guidance

Confirm the 57 mm flange and 56 mm body length fit the assembly, and verify the 4.0 A demand against the power budget. Because 1.0 N·m is a light-duty rating, choose this unit only for loads that stay below the running torque at operating speed. Lyenwsin can help confirm the load profile and recommend the matching drive settings.