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The electric hydraulic actuator consists of two parts, which drive the motor and the body (centrifugal pump). The body part consists of cover, cylinder, piston, impeller and shaft.

When the power is energized, the motor drives the impeller on the shaft and the shaft of the shaft to rotate, causing pressure inside the piston, and under pressure, oil

The upper part of the piston is drawn to the lower part of the piston, forcing the piston and the push rod and beam to rise rapidly. A mechanical movement is produced by a lever-mechanical compression load spring (a driver or brake with a load spring).

When power off, stop rotating impeller, the piston under the load on the spring force and gravity itself, into decline rapidly, forcing oil to flow into the upper piston, then still in situ restored by a lever mechanism.

The electric hydraulic booster is used in conjunction with the brake frame and is widely used in the braking of all kinds of transmission devices.