Description:Cat® Cylinder Groups are designed for your rugged work environment, are double acting cylinders in which the working fluid acts alternatively on both sides of the piston. Cat® Cylinders are manufactured with thick tube walls that enable more service lives. This feature, when combined with exclusive Cat® Oversize Seals, can extend cylinder life in many applications.Stroke Length : 305 mm (12 in)Closed Length : 522 mm (21.73 in)Open Length : 827 mm (32.56 in)Working Pressure : 230 bar (3335.87 psi)Application:Cat® Cylinder Groups are designed for specific machine applications. Used to actuate heavy-duty implements in hydraulic systems. Consult your owner's manual or contact your local Cat Dealer for more information.