Product Description:

The M-605-B-21-B3E1 is a brushless servo motor from Kollmorgen's M Goldline Servo Motors series. It is intended for precision automation duties that require closed-loop torque and speed control on packaging lines, gantry axes, and material-handling equipment. The motor can be coupled directly to a gearbox or linear actuator, which helps it fit into motion systems that need accurate, repeatable shaft response.

At 25 °C, the motor provides a continuous shaft torque of 31.8 Nm while drawing a phase current of 27.7 A. That output lets the axis hold demanding loads under steady thermal conditions. At a rated speed of 3150 RPM, it can deliver up to 7.7 kW of mechanical power for mid-range motion tasks. A back EMF constant of 65.9 V RMS/kRPM helps match the motor with suitable drive voltage and regeneration limits.

For short acceleration events, the design allows a peak torque of 87.7 Nm and a momentary phase current of 84.8 A. This brief overload capability supports rapid indexing without changing the motor's overall frame. An inductance of 6.3 mH helps moderate current ripple and can reduce inverter switching stress. The motor also has a torque constant of 1.09 Nm/A RMS, uses six rotor poles for smooth commutation, produces 30.1 Nm continuously at 40 °C, and weighs 63 lb.

Wake Industrial offers same-day shipping on many orders and keeps quotations valid for 30 days. Each purchase is backed by a 1-year warranty. The chat tool available on the website can be used for questions about fault codes or general specifications before maintenance work or replacement planning begins.