Product Description:

The MSM215-407-304-S-0KA is a brushless servo motor produced by Kollmorgen for the MSM Brushless Servo Motors series. This unit is intended for industrial automation axes that demand repeatable position, velocity, and torque regulation. When paired with a digital drive, the motor converts commanded current into mechanical motion, making it suitable for packaging equipment, gantry stages, and other applications requiring responsive electromechanical power. Its brushless design supports controlled acceleration and accurate movement without the mechanical commutation components found in brushed motors.

At its rated operating point, the motor delivers a continuous shaft torque of 46 Nm while maintaining a mechanical speed of 3000 rpm. These ratings indicate the motor’s steady-state operating range before additional cooling is required. Each ampere applied by the drive produces torque according to a constant of 1.4 Nm/A, allowing the controller to calculate load response during servo tuning. The motor is designed for a 460 V class bus, and its six-pole rotor generates back EMF in accordance with a voltage constant of 170 V/krpm. The three-phase stator has a winding resistance of 0.28 Ω, which affects drive sizing, electrical losses, and thermal dissipation during continuous operation.

For transient events such as acceleration or impact loading, the electromagnetic system supports a peak torque of 128 Nm. The drive may supply up to 117.4 A(pk) to reach that output, whereas holding the shaft in a locked condition requires a stall current of 36.6 A(pk). Dynamic behavior is influenced by a rotor inertia of 0.0141 kg·m², balancing quick response with mechanical stability when moving larger payloads. The winding has an inductance of 8.2 mH, which affects current rise time during fast servo control loops. The housing projects 426 mm from the mounting face and measures 484 mm in overall length. An M12 × 1.75 mm threaded shaft tip is cut to a depth of 28 mm to provide secure mechanical coupling.