Product Description:

The M-405-A-B1 is a brushless AC servo motor produced by Kollmorgen and offered within the M Goldline Servo Motors series. It is intended for closed-loop motion tasks where accurate position, speed, and torque regulation are needed in industrial automation cells, gantries, and packaging machinery. Its frame size and electrical design pair with Kollmorgen digital drives to execute repeatable indexing, contouring, and tension-control sequences without mechanical transmission losses.

With the rotor locked, the motor can deliver a continuous stall torque of 13 N-m while drawing 6 Arms, indicating its steady thermal load on the drive. A torque constant of 2.31 N-m/Arms links commanded phase current to produced torque, and the back-electromotive-force constant is 139.4 Vrms/kRPM, indicating the voltage returned to the amplifier during regeneration. Under rated conditions, the shaft supplies 12.73 N-m of torque at a mechanical output of 2000 W. Electrical parameters include a DC resistance of 4.1 ohms and an inductance of 102 mH, both relevant to current-loop tuning. The motor has a winding-to-case thermal resistance of 0.35 °C/W and a thermal time constant of 25 minutes. Its rotor inertia of 0.00441 kg·m² affects acceleration and settling times. These electrical and thermal parameters support linear control loops when the motor is paired with modern pulse-width modulation amplifiers, helping minimize current ripple and maintain a consistent dynamic response.

For transient moves, the motor withstands a peak stall torque of 35.9 N-m without mechanical damage. Protection against dust and water is provided by an IP65 sealing system, and a rear shaft extension permits encoder or brake coupling on the non-drive end. The frame weighs 15.5 kg, which must be considered when designing axis supports and cable tracks.