By using a pump and an electric motor specialized for filtration, this circuit filters contaminants even when the main hydraulic pump is not turned on.…

This circuit filters a small amount of the by-passed outlet flow from the pump (about 1 to 2 L/min (0.26~0.53 U.S.GPM)).

This circuit filters working fluid going back to the reservoir. The filtration rate is approximately 10 //m to 20 ^m.

This circuit protects the directional and other control valves in the line. Its filtration rate ranges from about 10^m (solenoid/proportional valve) to 3 ^m (servo…

This circuit’s objective is to protect the hydraulic pump. This circuit has two types: in one type, a filter is set inside a reservoir on…

In this circuit, the subsidiary cylinders and the pre-fill valve help the main cylinder achieve pumping function. This circuit drastically reduces the pump-output volume required…

When the cylinder is pushed forward, working fluid discharged from the cylinder head is added back to the cylinder cap because of the difference in…

Optimal flow rate (speed) is achieved by controlling the amount of the spool shifted in the proportional electrohydraulic valve; the spool is shifted proportional to…

This circuit changes the speed of the cylinder motion by employing two flow control valves. Shifting to high speed, change over the solenoid operated directional…

This circuit balances (holds up) the weight by using the balancing valve. The balancing valve cannot hold up the weight if the pump does not…