Product Description:

The MT302SF9-H1C1-027 is a brushless servo motor built by Kollmorgen within the MTC Servo Motors series. The unit converts electrical energy into controlled mechanical rotation for positioning axes, indexing stations, and synchronized motion segments in automated machinery. Its 90 mm square frame allows compact mounting in robot joints, conveyor drives, and other installations with limited space. The motor supports precise speed and position control when paired with a compatible servo amplifier and feedback system.

At 40 °C, the motor delivers a continuous torque of 1.36 N·m, providing steady force for sustained duty cycles without exceeding thermal limits. During acceleration or rapid direction changes, it can reach a peak torque of 3.23 N·m, allowing the drive to apply short bursts of current to overcome load inertia. A maximum line voltage of 250 V RMS is suitable for mid-range servo amplifiers operating from rectified 230 V mains power. The stator has 8 magnetic poles, which support fine electrical commutation and help reduce cogging during low-speed operation. The rotor has an inertia of 0.0000465 kg·m², enabling responsive velocity control while smoothing minor load transients.

Static friction is limited to 0.030 N·m, so only modest drive current is needed to initiate movement after a dwell period. Heat produced by copper losses exits through the housing along a thermal path rated at 0.93 °C/W. The motor has a thermal time constant of 22 min, indicating that its temperature rises gradually during intermittent peak loads. Its viscous damping coefficient is 0.0078 N·m/kRPM, representing the speed-proportional drag that the controller must counter at high rotational speeds. Two laminated stator stacks concentrate the copper volume to increase torque density without requiring a longer frame. These operating characteristics allow the controller to regulate current accurately during sustained motion, short acceleration intervals, and repeated indexing cycles.