MITSUBISHI HG-KR73 Servomotor HG Series, Power 750 W

Servomotor HG Series, Power 750 W; Torque 2.4 Nm, Max. Torque 8.4Nm

The HG-KR73 belongs to Mitsubishi's MR-J4 series servo motors, optimized for dynamic performance in machinery requiring rapid acceleration/deceleration and precise positioning. Its compact design (total length of 130mm) and lightweight construction (2.8kg standard, 3.8kg with brake) make it suitable for space-constrained applications. The motor features a 22-bit absolute/incremental encoder (4,194,304 pulses/rev) for sub-micron positioning accuracy and includes built-in vibration suppression to enhance low-speed stability.

Key Technical Specifications

Power & Torque:

Rated output: 750W

Rated torque: 2.4 N·m (continuous) / 8.4 N·m (peak, 350% of rated)

Rated speed: 3,000 RPM (max speed: 6,000 RPM,瞬时允许转速: 6,900 RPM)

Electrical:

Rated current: 4.8A (max: 17A)

Recommended servo amplifier: MR-J4-70A (750W class)

Power supply: 200–240V AC (compatible with MR-J4 series drives)

Mechanical:

Inertia: 1.26 × 10⁻⁴ kg·m² (standard), 1.37 × 10⁻⁴ kg·m² (with brake)

Recommended load inertia ratio: ≤17:1

Shaft load capacity: Radial 392N/Axial 147N (at 40mm from flange)

Environmental:

Protection: IP65 (dust/water-resistant, suitable for harsh environments)

Operating temperature: 0°C to 40°C (storage: -15°C to 70°C)

Humidity tolerance: 80% RH (non-condensing)

Features:

Low-inertia design for fast response (0→3,000 RPM in 30ms)

Auto-tuning function for PID optimization via MR Configurator2 software

Optional electromagnetic brake (2.4 N·m static torque, DC24V)

Oil seal and IP67-rated connector (select variants)

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