Product Description:

The LSM130-78-454-M-0KA belongs to the LSM Brushless Servo Motors series produced by Kollmorgen. It is a rotary permanent-magnet servo unit intended for closed-loop industrial axes where accurate torque and velocity control are required. By pairing with a matching digital drive, the motor converts commanded current into shaft torque for positioning, indexing, or continuous-speed duties found in packaging machinery, electronic assembly, and similar automation equipment.

This model delivers a continuous shaft torque of 8.8 Nm and can reach a momentary peak torque of 38 Nm for rapid acceleration or disturbance rejection. Under normal conditions, it sustains a rated mechanical speed of 4500 rpm. The motor has a maximum current draw of 50.9 A(pk). With a torque constant of 0.88 Nm/A, the drive can predict motor torque directly from phase-current feedback, simplifying control-loop tuning. Stall current is limited to 10.7 A(pk), indicating the current needed to hold the maximum static load without rotation. Phase resistance measures 1.68 Ω and helps determine copper losses during continuous operation. The eight-pole rotor geometry keeps the electrical frequency moderate, reducing switching stress on the inverter.

The stator winding exhibits a phase inductance of 8.46 mH, providing natural filtering of the inverter’s pulse-width modulated voltage. A rotor inertia of 0.00041 kg·m² supports fast response without excessive overshoot, and a voltage constant of 107 V/kRPM indicates the back electromotive force that the drive must overcome at speed. The assembly weighs 10.0 kg, which helps reduce the load added to a gantry or robot arm. The motor has an ST-60 steel shaft with an M8 × 1.25 mm threaded hole that is 19 mm deep, allowing secure attachment to pulleys or couplings. It tolerates a radial load of 58 kg at 3000 rpm, allowing belt tension or overhung gear loads without causing premature bearing wear.