MSM115-89-404-E2-2KA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.1302.1295
The Kollmorgen MSM115-89-404-E2-2KA is part of the MSM Brushless Servo Motors series and delivers a continuous torque of 10 Newton-meters with a peak torque of 32 Newton-meters. This servo motor features a speed of 4000 rpm, has a brake voltage rated at 24 VDC, and a pole count of 6. It weighs 12.1 kilograms with brake and offers an encoder resolution of 2000 lines.
Internal Product Review
The MSM115-89-404-E2-2KA is a Kollmorgen brushless servo motor with 10 Nm continuous torque and 32 Nm peak torque. A 2000-line encoder supports accurate feedback, while 4000 rpm capability fits responsive motion control duty. Strong torque performance makes this motor a highly capable choice for demanding servo applications.
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Product Description:
The MSM115-89-404-E2-2KA is a brushless servo motor produced by Kollmorgen within the MSM Brushless Servo Motors series. Intended for automated positioning tasks, the unit converts drive current into precise rotary motion and supplies feedback through an integrated incremental encoder. This compact motor is suitable for packaging lines, pick-and-place axes, and other machinery that benefits from responsive closed-loop speed and torque control. Its brushless design eliminates mechanical commutation, reducing wear during repetitive operating cycles.
At a rated shaft speed of 4000 rpm, the motor delivers a continuous torque of 10 Nm, while transient demand can be met with a peak torque of 32 Nm. The electromagnetic conversion ratio is 1.03 Nm/A, allowing the drive to regulate torque in proportion to the supplied current. During startup or stall conditions, current rises to 10.9 A peak. Coil heating is limited by a winding resistance of 2.0 ohms at 25 °C, while the drive’s current loop compensates for changing back EMF associated with the 123 V/krpm voltage constant. Motion feedback is provided by a 2000-line optical encoder that works with the six-pole rotor to provide velocity resolution for precise contouring. Rotor inertia with the brake engaged measures 0.00193 kg·m², supporting rapid acceleration without excessive overshoot. The motor housing extends 317 mm from the mounting face, and mechanical coupling is provided through an M6 × 1.0 mm threaded shaft end.
Short bursts, such as indexing moves, can be supplied with 38.2 A peak from the amplifier; this current ceiling corresponds to the thermal capacity of the windings and frame. The integrated holding brake engages at 24 VDC, preventing the load from driving the shaft backward when power is removed. Magnetic energy is stored and released through 12.0 mH of phase inductance, which must be considered when selecting the drive’s PWM carrier frequency. With the brake installed, the assembly weighs 12.1 kg, and this mass must be considered when sizing the mounting structure. The holding brake supports stationary load retention but is not intended to replace controlled deceleration by the servo drive.
