Hydraulic actuator consists of cylinder or fluid motor that uses hydraulic power to facilitate mechanical operation. The mechanical motion gives an output in terms of linear, rotatory or oscillatory motion. This hydraulic actuator is small in size, light in weight, high in output efficiency, wide in torque range, and very durable.
The electro hydraulic linkage actuator is an actuator that drives the oil pump with a motor and controls the hydraulic oil cylinder to drive the valve to open and close. According to the different operation modes, Electro hydraulic linkage actuator can be divided into angular stroke electro-hydraulic linkage actuator and straight stroke electro-hydraulic linkage actuator. There are two types of actuators: fork type and rack type.