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HG-KR43J

The HG-KR43J is a high-performance, compact AC servo motor from Mitsubishi Electric’s HG-KR series, designed for precision motion control in industrial automation. With a 400W (0.4kW) output, it delivers high torque density, smooth operation, and fast response, making it ideal for applications requiring accurate positioning and speed control.

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Key Specifications
Motor Type: Synchronous AC Servo Motor (Permanent Magnet)

Rated Output: 400W (0.4kW)

Rated Torque: 1.3 Nm

Max. Torque: 3.8 Nm (for short-term overload)

Rated Speed: 3000 rpm

Max. Speed: 5000 rpm (with compatible drive settings)

Encoder: 17-bit high-resolution incremental encoder (131,072 p/rev)

Shaft Type: Keyed shaft (with keyway)

Brake: Not included (Model HG-KR43BJ includes a brake)

Protection Class: IP65 (dust-proof & oil-resistant)

Cooling Method: Natural cooling (fanless)

Ambient Temperature: 0°C to 40°C (32°F to 104°F)

Insulation Class: Class F (155°C)

Performance Features
✔ High Dynamic Response – Low rotor inertia enables rapid acceleration/deceleration.
✔ Smooth & Quiet Operation – Optimized electromagnetic design reduces vibration and noise.
✔ Precision Positioning – 17-bit encoder ensures accurate feedback for closed-loop control.
✔ Compact & Lightweight – Space-saving design for easy integration into machinery.
✔ Maintenance-Free – Brushless motor with long service life.

Compatible Drives & Controllers
Servo Amplifiers: Mitsubishi MR-J4-40B series (for 400W motors).

Control Modes: Position, speed, and torque control.

Programming & Tuning: Configurable via MR Configurator2 software.

Network Support: Works with CC-Link IE Field, SSCNET III/H, and MELSERVO-JET.

Typical Applications
Industrial robots (SCARA, articulated arms)

CNC machines (small milling, grinding, lathes)

Semiconductor & PCB handling equipment

Packaging & labeling machines

Automated assembly lines

Medical & laboratory automation