Mitsubishi HF-SP81B AC Servo Motor with Brake for MELSERVO-J3 Series

The Mitsubishi HF-SP81B is a brushless AC rotary servo motor engineered for use with MELSERVO-J3 series motion control systems. It provides precise motion, positioning, and velocity control across demanding automated manufacturing and material handling machinery. Equipped with a straight shaft and a factory-integrated electromagnetic holding brake, the motor ensures secure position retention during power interruptions or stopped conditions. Operating on a 200 VAC power supply class, this medium-inertia servo motor delivers a rated output of 850 W (0.85 kW), a continuous rated current of 4.5 A, and a rated torque of 8.12 Nm at a nominal speed of 1,000 r/min. Feedback is managed via a built-in high-precision 18-bit absolute encoder, ensuring accurate speed regulation and position feedback. Mechanical integration is supported by a standard 130x130 mm mounting flange, while the IP67-rated enclosure provides robust protection against dust and liquid ingress in harsh industrial environments across an ambient operating temperature range of 0 to +40 degrees Celsius.