8.5 N·m Integrated 17bit Stepper Motor (iRSS86-80-85-17BC)

Integrated Drive with Absolute Position Feedback

The iRSS86-80-85-17BC is an 8.5 N·m Integrated 17bit Stepper Motor that combines an 8.5 N·m stepper, an on-board drive, and a 17bit absolute encoder. The encoder closes the position loop with feedback sampled every 50 microseconds, giving the axis servo-like error correction without the cost and tuning overhead of a full servo system.

Where It Earns Its Place

This mid-torque unit fits the rotating and indexing stations that populate a modern automated line. On packaging lines it drives the rotary tuckers and capping turrets that index repeatedly and must not lose step under load. Industrial automation cell builders use it for pick-and-place pedestal rotation and index cams. In robotics it powers the elbow and wrist rotation axes that need firm torque in a sealed package. On CNC machine tools it drives auxiliary axes such as a small indexing table or a tool magazine positioner, where the absolute encoder removes the homing step after each restart.

What the 17bit Absolute Encoder Adds

An absolute encoder retains position across power cycles, so the machine does not need a homing run after restart. Combined with real-time correction, this simplifies machine start-up and improves positional consistency in automated lines.

IP67 Sealing and Low-Vibration Operation

The IP67-rated body allows the motor to sit directly on washdown or dusty process equipment. Low heat generation and low vibration keep the axis quiet and stable during continuous operation, and fast acceleration supports short indexing cycles.

Specification Summary

• Frame size: 86 mm
• Length: 118 mm
• Holding torque: 8.5 N·m
• Rated current: 6.0 A
• Feedback: 17bit absolute encoder
• Protection: IP67

Selection and Operating Notes

Select this model when your axis needs roughly 8 N·m continuous with a sealed drive and absolute position recovery. Verify the 118 mm length and 86 mm flange fit the assembly clearance. Keep the shaft aligned to the driven coupling so the IP67 housing stays true and vibration stays low. The 6.0 A rating dictates the upstream cable size; fit fusing against shorts. With absolute feedback, remove any home switch from the design to cut wiring and commissioning time.