This cut away view shows the basic function of a single acting cylinder. The single acting cylinder functions under hydraulic pressure in the advance stage but then retracts by weight on the cylinder or via a spring for retracting the cylinder if unweighted. Contact us a www.winshawhydraulictools.com for more information.
![](https://i.ytimg.com/vi/egbJCFoo_Vo/maxresdefault.jpg)