The power hydraulic actuator is a hydraulic drive unit integrating an electric motor, centrifugal pump, and cylinder, mainly used for braking control of mechanical equipment and operation of industrial valves, gates, and other mechanisms. The equipment is produced by several enterprises in Jiaozuo City, such as Jianghe Brakes and Gongli Brakes, and covers series models like Ed, YT1, and BED, widely used in the fields of lifting and transportation, metallurgy, mining, and port machinery.