Mitsubishi HG-KR73JK Rotary AC Servo Motor for MELSERVO-J4

The Mitsubishi HG-KR73JK (HG-KR73JK) is a rotary brushless AC servo motor built for high-precision motion control within the Mitsubishi Electric MELSERVO-J4 series. Engineered with a keyed shaft and an integrated oil seal, this servo motor incorporates a high-resolution 22-bit absolute feedback encoder providing 4,194,304 pulses per revolution for accurate positioning and smooth velocity regulation. Operating on a 400 V AC supply class, the motor delivers a rated output of 5 kW with a rated current of 14 A and a rated torque of 15.9 Nm at a nominal rotational speed of 3,000 rpm. The unit is constructed with a 130 x 130 mm mounting flange and features two MS-type connectors for secure electrical and feedback wiring. Protected to an IP67 rating against dust and liquid ingress, it is designed for ambient operating temperatures ranging from 0 to +40 degrees Celsius. Serving as an equivalent replacement to the HGJR5034K, the motor is widely utilized across factory automation systems, machine tools, and industrial robotics requiring reliable dynamic performance.