HG-KR73 Mitsubishi HG-KR73 servo motor 0.75 kW, 2.4 N·m, 3000 rpm, 80 mm flange, 22 bit encoder

The Mitsubishi HG-KR73 servomotor from the MR-J4 series is rated at 0.75 kW with a rated torque of 2.4 N·m, a rated speed of 3000 rpm and a maximum of 6000 rpm. The 80 mm flange motor is fitted with a 22-bit absolute encoder.

• 22-bit absolute absolute feedback — precise positioning and position retention without a homing run after power-up.
• 2.4 N·m rated torque at 3000 rpm — stable effort across the working range of the cycle.
• Speed headroom up to 6000 rpm — dynamic acceleration and short cycles without losing accuracy.
• Standard 80 mm flange — predictable mechanical mating and straightforward replacement.
• Matched to MR-J4 amplifiers — a tuned motor-plus-drive pair within 0.75 kW.

The motor is used in CNC machine-tool axes, pick-and-place, robotics, packaging and labelling machines, conveyors, textile and printing equipment.

We will match a suitable servo amplifier to HG-KR73 for your control mode. We supply genuine Mitsubishi with CE certification, warranty and engineer-level technical support.

Mitsubishi MELSERVO MR-J4 is a mature servo drive series that has set the industrial standard for precise motion for years. Every amplifier carries a 22-bit absolute encoder, delivering over 4 million pulses per revolution and letting the axis position precisely without a homing run after power-up. The series comes in two interface variants: -A (general-purpose pulse-train and analog command for any PLC or controller) and -B (SSCNET III/H optical network for tight integration with the Mitsubishi motion line).

MR-J4 amplifiers pair with motors from the HG-KR family (low-inertia, 3000 rpm — for dynamic, fast cycles) and HG-SR family (medium-inertia, 2000 rpm — for higher torque and heavier loads). The 0.1–7 kW power range covers the 200V class (1-ph/3-ph 220V) and 400V class (3-ph 380V), flanges 40–176 mm, with or without a holding brake. Built-in auto-tuning and vibration suppression simplify commissioning.

MR-J4 is used in packaging and labelling machines, electronic assembly, CNC machine tools, conveyors, textile and printing equipment. We supply genuine Mitsubishi drives with CE certification, select the correct amplifier-and-motor pair for your torque and dynamics, and provide warranty plus engineer-level technical support at every stage — from selection to commissioning.