Mitsubishi Electric Corporation HG-KR43K Servo Motor

The Mitsubishi HG-KR43K servo motor delivers precise, reliable AC servo motion in a compact, low-inertia package. As a permanent-magnet servo motor in the HG-KR series, it uses a high-resolution encoder and is self-cooled, with a flange-mount design that simplifies installation in tight spaces. The combination of compact form, high efficiency, and repeatable control makes it well-suited for high-precision positioning tasks on CNC machines, semiconductor equipment, robotics, and other automated production lines. Industry professionals such as maintenance teams, OEMs, and system integrators frequently choose the HG-KR43K for replacement or retrofit to maintain reliable motion control in dynamic environments. Common replacements within Mitsubishi's HG-KR family include HG-KR23K and HG-KR73K, as well as the nearby HG-MR43K line, ensuring compatibility across a range of motion control architectures. Part number HG-KR43K identifies this compact, low-inertia servo motor designed for high-precision control, with the performance expected from Mitsubishi's automation portfolio.