Mitsubishi Electric HG-KR43 MELSERVO-J4 Series Rotary Servo Motor

Description

Designed for precise positioning and dynamic motion control, the Mitsubishi Electric HG-KR43 is a low-inertia rotary servo motor developed for the MELSERVO-J4 automation platform. Operating on a 200V voltage class, this motor features a compact form factor while providing a rated output of 0.4 kW and a rated torque of 1.3 N-m. It is engineered with high-resolution feedback systems to meet the rigorous demands of modern industrial machinery.

The HG-KR43 is equipped with a high-resolution 22-bit absolute/incremental encoder, translating to 4,194,304 pulses per revolution. This level of resolution ensures exceptional path accuracy, low speed ripple, and stable operation even at low velocities. Its low-inertia rotor design makes it highly suitable for applications requiring high-frequency acceleration and deceleration cycles. Compatible with various industrial communication networks via matching MELSERVO-J4 amplifiers, it easily integrates into CC-Link IE Field networks, SSCNET III/H setups, and general-purpose pulse/analog control architectures.

Features

• Low-inertia design optimized for rapid acceleration, deceleration, and high-frequency positioning cycles.
• High-resolution 22-bit feedback encoder operating as both absolute and incremental, delivering 4,194,304 pulses per revolution.
• Rugged environmental design with an IP65 protection rating (excluding shaft-through portion).
• Natural cooling mechanism using a totally enclosed, self-cooled frame construction.
• Compatible with a wide array of Mitsubishi MR-J4 servo amplifiers supporting CC-Link IE, SSCNET III/H, and general-purpose interfaces.

Applications

• Packaging and labeling machinery requiring high-speed indexing.
• Semiconductor and electronics assembly systems.
• Material handling systems and multi-axis Cartesian robots.
• Textile processing machinery and precise tension control systems.

Technical Specifications

Compatible Servo Amplifiers

Installation Guidelines

• Mounting: Install the servo motor in a location with clean ambient air, free of oil mist, dust, metal particles, and corrosive gases.
• Alignment: Ensure strict alignment of the motor shaft with the machine shaft to maintain radial loads below 245 N and thrust loads below 98 N during operation.
• Wiring: Route the motor power cables and encoder cables through separate pathways to minimize electromagnetic interference (EMI).
• Grounding: Ensure the protective earth terminal of the motor is properly grounded via the amplifier chassis to prevent electrical noise and shock hazards.