HSM320-REP Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.3000.0373
The Kollmorgen HSM320-REP is a brushless servo motor from the HSM Brushless Servo Motors series with a continuous torque of 2.3 Nm and peak torque of 6.78 Nm. It features a rated voltage of 230 V, a back EMF constant of 34 V per kRPM, and weighs 3.8 kg. The motor has a rotor inertia of 0.00008 kg-m² and a winding resistance of 1.3 Ohms.
Internal Product Review
The HSM320-REP is a Kollmorgen brushless servo motor with 2.3 Nm continuous torque and 6.78 Nm peak torque. A 230 V rating and 0.00008 kg-m² rotor inertia support crisp acceleration and stable servo response in demanding motion axes. Excellent torque density makes this motor a strong choice for precision automation.
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Product Description:
The HSM320-REP is a frameless brushless servo motor manufactured by Kollmorgen within the HSM Brushless Servo Motors series. As a direct-coupled rotary actuator, the unit converts drive current into precise shaft torque for positioning, indexing, and velocity control in automated machinery. Its compact stator-rotor assembly allows tight integration into gear stages, semiconductor tools, or packaging axes where high dynamic performance and low maintenance are required.
Under continuous excitation, the motor delivers 2.3 Nm of torque, allowing it to carry a sustained load without exceeding its rated temperature rise. For short transients, it produces a peak torque of 6.78 Nm, providing additional acceleration during startup or rapid reversals. The electromagnetic design has a torque constant of 0.31 Nm/A, while the back electromotive force constant is 34 V/kRPM; these values assist with drive selection and control-loop tuning. The stator windings are optimized for a supply of 230 V. The winding inductance is 3.4 mH, which affects current ripple during pulse-width modulation. When paired with an inverter of adequate bandwidth, these electrical parameters support smooth motion profiles in pick-and-place heads, turret drives, and small gantries.
The motor has an overall length of 223 mm, and its weight of 3.8 kg helps keep moving mass modest on light machine axes. A 100 mm bolt circle with 7 mm mounting holes provides direct flange attachment without adapter plates, while M4 × 0.7 mm threaded holes extend to a depth of 10 mm. The rotor inertia of 0.00008 kg·m² supports rapid speed changes while maintaining positional stability. The shaft bearings can withstand a radial load of 45.9 kg at 1,000 rpm, supporting operation in belt-driven systems. The copper winding resistance is 1.3 Ω, which affects steady-state current and the thermal load seen by the drive amplifier.
