How does a hydraulic actuator work?
The hydraulic actuator is a cylinder with a piston inside which is attatched to a rod which sticks out of the end of the actuator. Basically a separte valve sends hydraulic fluid(oil) to the inside of one end of the actuator to move the piston up or down, this causes the parts attatched to the actuator to move. Both top and bottom of a hydraulic actuator(cylinder) have a hole where a hose is attatched and the fluid is pumped in under very high pressure, this is attatched to the valve and the pump which pressurises the oil for making movement possible.
