HG-KR43-SET-MR-J4-40A Mitsubishi MR-J4 servo kit MR-J4-40A + HG-KR43, 0.4 kW

The ready Mitsubishi MR-J4 servo kit is a matched pair of the MR-J4-40A amplifier and HG-KR43 servomotor, rated at 0.4 kW with a rated torque of 1.3 N·m at 3000 rpm. Control is via pulse/analog; the drive and motor are factory-compatible and tuned to work together.

• Matched drive-plus-motor pair — no risk of mismatched power, torque or encoder.
• pulse/analog control — integration into an existing motion system with no extra alignment.
• 1.3 N·m at 3000 rpm — predictable cycle performance right after installation.
• Fast commissioning — MR-J4 auto-tuning and vibration suppression shorten start-up.
• Single 0.4 kW rating — coordinated thermal and electrical load across the pair.

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

If you need a different power or torque combination, we will match a pair to your task. 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.