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