Mitsubishi HG-KR43J Servo Motor

Series#: Mitsubishi

Product Details

MITSUBISHI MELSERVO-J4 SERVOMOTOR 400W HG-KR43J: High-performance AC servo motor for precision motion control applications.
Rated output of 400W with a rated torque of 1.3 Nm, delivering smooth and accurate positioning.
Equipped with a 22-bit absolute encoder (4,194,304 pulses/rev) for ultra-high resolution feedback.
Compact flange size (60mm square) with a lightweight design (approx. 1.5 kg), ideal for space-constrained installations.
Supports high-speed operation up to 6,000 rpm with a maximum torque of 3.8 Nm for rapid acceleration.
Built-in electromagnetic brake option (HG-KR43J model) for secure holding in vertical or safety-critical axes.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The MITSUBISHI MELSERVO-J4 SERVOMOTOR 400W HG-KR43J is a state-of-the-art AC servo motor designed for demanding industrial automation tasks, including CNC machining, robotic arms, and packaging machinery. This motor combines a 400W rated output with a 22-bit high-resolution encoder, ensuring precise velocity and position control even at low speeds. Its compact 60mm flange and lightweight construction make it an excellent choice for applications where space and weight are critical factors. The HG-KR43J supports a wide speed range from 0 to 6,000 rpm, with a peak torque of 3.8 N·m for dynamic load handling. Built with Mitsubishi Electric’s advanced magnetic circuit technology, it delivers low cogging torque and exceptional energy efficiency. The integrated electromagnetic brake provides reliable holding torque, enhancing safety in vertical axis applications. Below is the comprehensive specification table for this model.

Parameter	Specification (HG-KR43J)
Rated Output Power	400 W
Rated Torque	1.3 N·m
Maximum Torque	3.8 N·m
Rated Speed	3,000 rpm
Maximum Speed	6,000 rpm
Encoder Type	22-bit absolute encoder (4,194,304 pulses/rev)
Feedback Resolution	0.000086° per pulse (electrical)
Rotor Inertia	0.55 × 10⁻⁴ kg·m²
Brake Type	Electromagnetic brake (integrated, 24 VDC)
Brake Holding Torque	2.5 N·m (minimum)
Flange Size (Square)	60 mm (ISO standard)
Shaft Diameter	14 mm (with keyway, straight shaft)
Weight (with Brake)	Approx. 1.5 kg
Insulation Class	Class B (130°C)
Protection Rating	IP65 (oil seal and dust-proof)
Ambient Temperature Range	0 to 40°C (operating)
Ambient Humidity	20% to 80% RH (non-condensing)
Vibration Level	V15 (max 15 µm/s)
Power Supply	3-phase AC 200-230V, 50/60 Hz
Compatible Servo Amplifier	MR-J4-40A or MR-J4-40B series
Communication Protocol	Mitsubishi SSCNET III/H (via amplifier)
Overload Protection	Thermal protection via PTC thermistor
Standard Conformance	CE, UL, cUL, RoHS
Connection Type	Connector (CN1/CN2) with cable option
Recommended Cable Length	Max 30 meters (shielded, for encoder)