Mitsubishi Electric Corporation HG-KR43B Servo Motor

The Mitsubishi Electric Corporation HG-KR43B Servo Motor is a compact permanent-magnet AC servo motor in the HG-KR series, engineered for high-precision motion control. Its low-inertia design, paired with a high-resolution encoder and self-cooled operation, delivers rapid dynamic response and accurate positioning for demanding automation tasks. With a flange-mount configuration, it fits neatly into space-constrained installations and retrofit projects across CNC machines, robotics, pick-and-place systems, and assembly lines, as well as semiconductor equipment in high-precision environments. The HG-KR43B is used by maintenance teams, OEMs, and system integrators for replacement, retrofit, and advanced motion-control applications that require high efficiency and consistent performance under dynamic operation. Common replacements include Mitsubishi HG-KR23B, HG-KR73B, and HG-MR43B.