The HG-MR23 is a servo motor from Mitsubishi Electric's HG-MR series, classified as Ultra-Low inertia/Small capacity. It carries a rated output of 0.2 kW and a rated speed of 3000 r/min. This variant includes an electromagnetic brake, making it suitable for applications requiring holding torque at power-off.
The 0.2 kW rated output sizes the motor for small-axis positioning tasks — think pick-and-place arms, conveyor indexing, or label applicators. The 3000 r/min rated speed is the base speed at which the motor delivers full torque; above that, the drive enters constant-power field-weakening range. The ultra-low inertia rotor class means the motor accelerates and decelerates quickly, which reduces cycle time in applications with frequent direction changes. The electromagnetic brake holds the load when power is removed. This is critical for vertical axes where the load could drop on power loss, or for any axis that must hold position during an E-stop event. The brake is factory-integrated, so no external brake resistor or separate brake coil wiring is needed on the motor side.
Deployment Context
This servo motor connects to a compatible Mitsubishi Electric servo drive (e.g., MR-J4 series) via a standard encoder and power cable. The motor flange and shaft dimensions follow the HG-MR series footprint, so it mechanically replaces earlier HG-MR variants in the same frame size. No special mounting adapter is needed for a standard servo-mounting pattern.