FSM430 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen FSM430 is a brushless servo motor from the FSM Brushless Servo Motors series. It offers a continuous torque of 3.5 Nm, peak torque of 11.3 Nm, and a maximum operating speed of 4000 rpm. The motor features a dielectric rating of 1500 VACrms and weighs 8.9 kilograms.
Internal Product Review
The Kollmorgen FSM430 is a brushless servo motor with 3.5 Nm continuous torque and 11.3 Nm peak torque. A 4000 rpm maximum operating speed and 0.0010 kg-m² rotor inertia support responsive motion control in servo applications. A 1500 VACrms dielectric rating makes the unit a very capable choice for demanding motion systems.
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Product Description:
The FSM430 brushless servo motor is produced by Kollmorgen as part of the FSM Brushless Servo Motors series. In motion-control systems, this motor converts drive current into high-density shaft torque for positioning or velocity loops on pick-and-place gantries, indexing tables, and packaging axes. With Hall sensors or high-resolution feedback attached, the FSM430 serves as the rotational actuator while Kollmorgen drives supply the current and commutation commands.
During continuous operation, the motor supplies 3.5 Nm of shaft torque while the frame remains within its rated temperature range. A maximum operating speed of 4000 rpm allows direct coupling to gearheads or lead screws without exceeding mechanical limits. For short acceleration bursts, the electromagnetic structure withstands 11.3 Nm of peak torque, providing additional headroom during indexing. The back electromotive force rises at 66 V/kRPM, a value that supports drive-bus sizing and regeneration hardware selection. Current-to-torque conversion is represented by a 0.54 Nm/A sine-torque constant, so a 5 A RMS phase current delivers approximately 2.7 Nm. Static losses are limited by 0.063 Nm of friction torque and 0.06 Nm/kRPM of viscous damping, helping the axis settle quickly. The windings have a dielectric rating of 1500 VAC RMS for electrical insulation.
Dynamic response is aided by a rotor inertia of 0.0010 kg-m², balancing acceleration capability against load matching. Heat generated in the copper path travels through the stator laminations with a thermal resistance of 0.63 °C/W. A thermostat embedded in the windings opens at 140 °C to alert the controller. A coil resistance of 2.24 Ω and an inductance of 6.8 mH shape the electrical time constant, allowing the drive to tune current loops without an excessive switching frequency. The motor uses 8 magnet poles that interact with the sine-distributed windings to minimize cogging. The motor enclosure weighs 8.9 kg, providing mass for vibration damping while remaining suitable for machine installation.
