Mitsubishi HF-MP43B AC Brushless Servo Motor for MELSERVO-J2S

The Mitsubishi HF-MP43B (HF-MP43B) is an AC brushless rotary servo motor engineered for precision positioning and motion control in systems utilizing the MELSERVO-J2S series. Equipped with a straight shaft, an integrated electromagnetic brake, and an oil seal, this motor is designed to maintain load stability and prevent back-driving during power loss or system standstill. Feedback is provided by a built-in 17-bit absolute encoder that delivers high-resolution positional tracking equivalent to 131,072 pulses per revolution for accurate multi-axis synchronization and rapid dynamic response. Electrically, the unit operates on a 400 V AC supply class with a rated output of 3,500 W (3.5 kW) and a rated current of 8.6 A. It delivers a rated torque of 16.7 Nm at a rated rotational speed of 2,000 RPM. Housed in an IP65-rated enclosure, the motor features a 176 x 176 mm mounting flange and is rated for operating ambient temperatures from 0 to +40 degrees Celsius. It is commonly implemented across demanding automated equipment, including packaging lines, material handling systems, and CNC machine tools.