A Hyd Cylinder china hydraulic cylinder is a mechanical actuator used to provide unidirectional force through a unidirectional stroke. Hydraulic cylinders are found in almost every sector and are available in a number of configurations. Both primary types of hydraulic cylinders are Tie-rod and Welded. Each of these cylinder types can possess unique applications because of their styles. Tie-rod cylinders are often installed in light to medium duty applications and tend to be designed to be repaired or re-packed if necessary. Welded cylinders are created for most applications and so are more complex in style but are usually more difficult to correct due to the welded design. Welded cylinders are typically a better solution due to their compact design and when a more robust design is important in an application.