MSM215-407-304-M-2KA Kollmorgen
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MPN: M.1302.1365
The Kollmorgen MSM215-407-304-M-2KA is a servo motor from the MSM Brushless Servo Motors series with a continuous torque of 46 Nm and a rated speed of 3000 RPM. It supports a brake voltage of 24 VDC and operates with a voltage rating of 460 V. The motor features multiturn high resolution feedback and a peak torque of 128 Nm.
Internal Product Review
The MSM215-407-304-M-2KA is a Kollmorgen brushless servo motor that stands out for 46 Nm continuous torque and 128 Nm peak torque. Multiturn high-resolution feedback and a rated speed of 3000 RPM support accurate positioning and responsive motion control. The 460 V rating further reinforces strong suitability for demanding servo applications.
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Product Description:
The MSM215-407-304-M-2KA is a brushless servo motor from Kollmorgen in the MSM Brushless Servo Motors series. It converts drive-generated three-phase power into controlled rotary motion for indexing tables, gantries, and packaging axes that require rapid acceleration and repeatable positioning. An internal permanent-magnet rotor works with multi-turn, high-resolution feedback so the paired amplifier can maintain absolute position and execute smooth electronic commutation. This feedback arrangement also allows the control system to monitor rotor position after power cycles without requiring the axis to complete a new homing sequence.
The unit sustains a continuous shaft torque of 46 Nm at its rated speed of 3000 rpm. Its torque constant is 1.4 Nm/A, providing a proportional relationship between commanded phase current and developed torque. The back EMF constant is 170 V/krpm, which the controller uses when regulating motor voltage and speed through field-oriented vector control. During acceleration, the winding can accept a peak current of up to 117.4 A, while thermal limits restrict longer-term current to 36.6 A peak. The motor operates from a 460 V bus, and its 8.2 mH phase inductance and 0.28 Ω resistance affect current rise time and copper losses. A six-pole rotor establishes the electrical frequency that the inverter must generate for the requested shaft speed.
The shaft bearings can tolerate a radial load of up to 101 kg, allowing properly supported belts or gears to transmit motion without placing excessive stress on the bearing assembly. A peak torque of 128 Nm supports rapid acceleration and short indexing moves before the motor reaches its magnetic limit. The integrated holding brake uses 24 VDC control power and prevents vertical axes from drifting when motor power is removed. For fixture attachment, the shaft includes an M12 × 1.75 mm threaded center hole with a depth of 28 mm. The threaded opening accommodates compatible fastening hardware used to secure couplings or other shaft-mounted components. Proper alignment and load support remain necessary when installing external transmission components on the motor shaft.
