MSM215-407-304-S-2KA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.1302.1338
The Kollmorgen MSM215-407-304-S-2KA is part of the MSM Brushless Servo Motors series and weighs 43 kilograms with its brake. This servo motor operates at a nominal voltage of 460 volts and has a rated speed of 3000 rpm. It delivers a continuous torque of 46 Nm with a peak torque of 128 Nm and features a 32 millimeter shaft diameter.
Internal Product Review
The MSM215-407-304-S-2KA is a Kollmorgen brushless servo motor rated for 460 V and 3000 rpm. Continuous torque of 46 Nm with peak torque of 128 Nm gives the motor strong dynamic response in demanding motion systems. A torque constant of 1.4 Nm/A supports efficient tuning and makes the MSM215-407-304-S-2KA a very capable high-performance servo solution.
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Product Description:
The MSM215-407-304-S-2KA is a brushless servo motor manufactured by Kollmorgen for the MSM Brushless Servo Motors series. It is intended for tightly controlled positioning and speed regulation in automated production cells, allowing drive controllers to translate motion commands into precise shaft movement. Its permanent-magnet construction and integrated feedback provide the torque density needed for gantries, packaging stations, and metal-cutting axes.
The motor operates from a nominal 460 V bus and has six poles for smooth sinusoidal commutation. At the rated speed of 3000 rpm, the shaft delivers a continuous torque of 46 Nm, and the motor has a peak stall current of 36.6 A. Dynamic movement is supported by a maximum current of 117.4 A(pk), providing additional output during acceleration and rapid changes in load. The phase windings have an inductance of 8.2 mH, which the controller must account for when tuning the current loops. With a voltage constant of 170 V/krpm, the back EMF remains within common inverter limits. A torque constant of 1.4 Nm/A provides a direct relationship between the commanded current and the torque produced by the motor.
A peak torque of 128 Nm is available for rapid indexing, and the rotor inertia with the brake installed is 0.0171 kg·m², balancing responsiveness with load matching. The holding brake operates from 24 VDC and secures the axis when electrical power is removed. The complete motor assembly weighs 43 kg, which must be considered when sizing the machine structure and mounting hardware. A 32 mm shaft transmits torque through keyed couplings, while auxiliary devices can be attached to M12 × 1.75 mm threads. The copper windings have a resistance of 0.28 Ω, limiting I²R losses during continuous operation and helping the motor maintain suitable thermal margins. The keyed shaft provides positive engagement with compatible couplings during repeated acceleration, deceleration, and reversing cycles.
