4.5 N·m Closed Loop Stepper Motor, 86 mm Frame with Absolute Feedback

Integration That Simplifies Wiring

The iESS86-60-45-17BC is a 4.5 N·m Closed Loop Stepper Motor packaged in an 86 mm frame with an 80 mm body length and a 17-bit absolute encoder. The compact housing contains both the motor and the drive, giving builders a single package for medium-torque closed loop axes. Because the driver travels with the motor, panel space is freed and the long shielded cable between a conventional driver and motor disappears from the machine.

Encoder and closed loop Control

The absolute encoder provides shaft position at all times, and the integrated controller applies real-time error correction to the stepping sequence. The result is dependable positioning under fluctuating torque, with no need for a homing routine when power returns. This is especially helpful on machines that are stopped mid-cycle and must resume from a known point.

Specifications

• Frame size: 86 mm
• Body length: 80 mm
• Holding torque: 4.5 N·m
• Rated current: 6.0 A
• Feedback: 17-bit absolute encoder

Torque and Thermal Characteristics

Rated at 4.5 N·m holding torque and 6.0 A, the unit delivers strong output for its frame size. Low heat generation keeps the machine structure cooler in continuous operation, while low vibration and fast acceleration improve cycle times in automated equipment. The compact 80 mm body also makes it easier to fit into dense mechanical assemblies where length is limited.

Applications

Typical installations include factory automation, packaging machinery, robotics and CNC machine tools. The 4.5 N·m class also appears in textile and printing lines, conveyor diverters and small rotary tables where absolute position memory adds reliability without the cost of a servo axis.

Selection Considerations

Check the 86 mm mounting flange and the 80 mm body against the available space, and confirm the 6.0 A feed and DC bus voltage for the application. Evaluate both holding and running torque against the load profile, because the absolute encoder does not change the torque available at speed. Lyenwsin provides datasheets and application assistance to confirm the fit.