Yaskawa Electric Corporation SGMGH-44A2A-YR15 AC Servo Motor

The Yaskawa SGMGH-44A2A-YR15 is a Sigma-II brushless AC servo motor delivering 4.4 kW of continuous power for high-torque, low-speed precision in demanding industrial automation. Designed for Motoman UP-series robots on the L/U axis and other heavy CNC systems, it provides a nominal 1500 RPM speed, about 28.4 Nm of rated torque, and roughly 45 A at 200 VAC, with a shaft diameter around 28 mm and flange mounting. Feedback comes from the UTSAE-B17BBF encoder to support accurate positioning and synchronized multi‑axis control, and the motor can achieve peak torque up to approximately 300% of its rated torque under Sigma-II capability. This model is commonly employed in robotic welding, heavy material handling robots, large CNC machining centers, and automated production lines where stable low-speed performance and robust torque are essential. The unit sits in the Yaskawa Sigma-II family of AC servo motors and is intended for high-load automation scenarios, with replacement options such as the SGMGH-44A2A-YR18 and other 44A-series models available for retrofit or system rebuilds.