Mitsubishi HG-RR203B - Servo Motors
The Mitsubishi HG-RR203B Servo Motor offers 2 kW rated capacity with 6.4 Nm torque and ultra-low inertia for high-response applications. Integrated into the Mitsubishi automation platform, this Servo Motor includes a 22-bit encoder, 200 V AC supply, 4500 rpm maximum speed, and IP65 protection for industrial use. As part of the Mitsubishi Servo Motors family, it matches the MELSERVO-J4 series and features a straight shaft, 2.65 kg·cm² inertia, brake support, and 8.3 kg weight.

| Brand | Mitsubishi |
| Product Type | Servo Motors |
| Product | HG-RR203B |
Mitsubishi Servo Motors HG-RR203B Technical Specifications:
| Specification | Value |
|---|---|
| Series | MELSERVO-J4 |
| Type | HG-RR |
| Power Supply (V) | 200 |
| Rated Capacity (kW) | 2 |
| Inertia | ULTRA-LOW INERTIA |
| Rated Torque (Nm) | 6,4 |
| Maximum Torque (Nm) | 15,9 |
| Rated Speed (rpm) | 3000 |
| Inertia (kg*cm2) | 2,65 |
| Brake | YES |
| Shaft Type | STRAIGHT SHAFT |
| Current Type | AC |
| Encoder Resolution (p/rev) | 4194304 |
| Maximum Speed (rpm) | 4500 |
| Protection Class | IP65 |
| Encoder Type | 22-BIT |
| Depth (mm) | 278 |
| Weight (kg) | 8,3 |
| Width (mm) | 100 |
| Height (mm) | 144,8 |
The Mitsubishi HG-RR203B Servo Motor is designed for automation systems requiring fast acceleration and precise control. The HG-RR203B provides 2 kW power, 6.4 Nm torque, and a 22-bit encoder, ensuring stable feedback and accurate positioning. Operating on a 200 V AC supply, it belongs to the MELSERVO-J4 series and is used across industrial applications needing high responsiveness and repeatable motion.
This servo motor is commonly applied in conveyors, pick-and-place systems, packaging lines, and precision assembly machinery. Its ultra-low inertia enables rapid speed changes, supporting high-cycle operations with consistent accuracy. The straight shaft configuration allows easy integration, while the IP65 protection ensures reliable operation in environments with dust, moisture, or frequent machine movement.
The Mitsubishi HG-RR203B Servo Motor delivers dependable motion performance, consistent torque stability, and reliable encoder feedback. With ultra-low inertia, brake support, and a high-resolution 22-bit encoder, the model is suitable for OEMs and industrial users requiring high-speed, long-duration operational reliability. Supported by Mitsubishi’s engineering standards, the HG-RR203B remains a trusted option for precision-driven automation.


