The dynamic actuator is dedicated designed for fatigue or dynamic tests who needs quick response. This kind of actuator adopts double rods double action structure with equal piston area. The servo valve sometime with inlet and outlet accumulators together are mounted on the actuator's body. Swivel head and swivel base with backlash adjusting bolts are mounted on the actuator's front and back end. It can be used both as vertical and horizontal loading actuators for all kinds of tests (from static to dynamic) with excellent reliability, accuracy and repeatability. The nominal working frequency is 0β50 Hz. Frequency above 50Hz (less than 100Hz) also can be achieved if adopt special bearing support.
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