MSM115-34-404-M-2KA Kollmorgen
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MPN: M.1302.1358
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The Kollmorgen MSM115-34-404-M-2KA is part of the MSM Brushless Servo Motors series and weighs 7.7 kg. This servo motor offers a continuous torque of 3.8 Nm with a rated speed of 4000 rpm and operates on a 460 V supply voltage. It features a multiturn high resolution feedback type and has a peak current of 15.6 A.
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Product Description:
The MSM115-34-404-M-2KA servo motor is produced by Kollmorgen and belongs to the MSM Brushless Servo Motors series. As a permanent-magnet, brushless AC actuator, it converts electrical energy from a matched drive into tightly regulated shaft motion for accurate positioning and speed control. The motor is intended for industrial automation tasks such as indexing tables, gantry axes, and packaging machinery where repeatable torque delivery and responsive acceleration are required.
The electromagnetic section is designed to operate from a 460 V DC bus, allowing the drive system to use rectified power from common three-phase mains without an intermediate transformer. Under continuous duty, the stator can sustain 3.8 Nm of torque while remaining within its rated thermal limits, and the motor can reach 4000 rpm when commanded by the controller. Short bursts permit a peak shaft torque of 12 Nm, providing additional capacity for rapid starts or process disturbances. With a torque constant of 0.95 Nm/A, the motor develops almost one newton-meter for every ampere of phase current, simplifying current-loop tuning and torque prediction. The maximum phase current is 15.6 A peak, while the stall current is 4.5 A peak. The winding has a resistance of 8.4 Ω and an inductance of 32.0 mH, providing the electrical values used by the drive for current regulation and fault detection.
An electromechanical brake rated at 24 VDC can lock the shaft when power is removed, preventing vertical loads from drifting. Multi-turn, high-resolution feedback tracks position across multiple revolutions, eliminating the need for homing cycles after shutdowns. The rotor has a moment of inertia of 0.00093 kg·m², supporting quick acceleration without excessive oscillation. The overall assembly weighs 7.7 kg, which supports manageable installation and secure mounting. The magnetic circuit uses 6 poles, establishing the electrical frequency that the drive must generate for synchronous operation. The threaded output shaft has an M6 × 1.0 mm end that supports positive locking of compatible couplings or pulleys.
