3.5 N·m Closed Loop Stepper Motor, 60 mm Frame with 17-Bit Encoder

Product Overview

The iESS60-36-35-17BC is a 3.5 N·m Closed Loop Stepper Motor that integrates a 60 mm motor, its drive and a 17-bit absolute encoder in a 100 mm body. This package targets medium-duty positioning where the machine builder wants closed loop accuracy without a large drive cabinet. The single-housing design keeps the axis self-contained, which reduces installation time and simplifies the electrical schematic for multi-axis machines.

Feedback Architecture

Absolute feedback means the controller knows the exact shaft angle from startup. The loop corrects the step command in real time, so the motor holds its position against load changes and does not accumulate step error over multiple moves. For applications that index to the same position thousands of times, this repeatability is the main reason to move from an open-loop stepper to a closed loop integrated unit.

Key Specifications

• Frame size: 60 mm
• Body length: 100 mm
• Holding torque: 3.5 N·m
• Rated current: 5.0 A
• Feedback: 17-bit absolute encoder

Torque and Thermal Behavior

With 3.5 N·m holding torque and a rated current of 5.0 A, this model covers a wide band of light and medium automation loads. The drive is set up for low heat generation, keeping the motor cool in enclosed assemblies, and the low-vibration design supports precise positioning and smooth feed motion. The absolute encoder also removes the need for a startup homing run, cutting a few seconds from every power-on sequence.

Application Notes

The motor is used in factory automation, packaging machinery, robotics and CNC machine tools. In precision instrumentation, optical handling and 3D printing equipment, the 60 mm frame provides enough torque for small tables and positioning stages while the absolute feedback protects repeatability. Textile and printing machinery also use this class on feed and registration rollers.

Selection Guidance

Confirm the 60 mm frame and 100 mm length fit the axis assembly, and provision the 5.0 A feed in the cabinet. Because feedback is absolute, verify that the controller supports absolute position reporting before committing. Lyenwsin supplies this unit with full documentation and can help confirm torque-versus-speed margins for your cycle.