Single-acting cylinder
Oil pressure produces working force in one direction only. The rod returns under the load’s weight, a spring or an external mechanism.
Applications: Hydraulic jacks, simple lifting systems and some dump truck mechanisms.
Types
Types of hydraulic cylinders
Hydraulic cylinders fall into groups by working principle, design and purpose. Choosing the right type determines the reliability and service life of the machine.
By working principle
Double-acting cylinder
Oil pressure both extends and retracts the rod, so motion is controlled in both directions.
Applications: Excavators, cranes, mining machinery, dozers and industrial equipment.
Telescopic cylinder
Several stages nest inside each other. Compact when retracted, it delivers a long total stroke.
Applications: Dump trucks, mining haulage, lifting platforms and special vehicles.
By design
Welded
Barrel and end caps are joined by welding or other structural methods. Widely used in mobile machinery and harsh conditions.
Tie-rod
Head and cap are held together by long tie rods. Found in industrial presses, production lines and standardised equipment.
Plunger (ram)
A plunger is the working element. Used where a large push or lift force is needed in one direction.
Double-rod
The rod extends from both sides of the piston. Equal areas on both sides balance speed and force in each direction.
Other versions
There are also tandem, cushioned, multi-position and custom-built cylinders. Their design follows the equipment drawing and operating conditions.
Quick comparison
| Type | Working direction | Rod return | Typical use |
|---|---|---|---|
| Single-acting | One | Load or spring | Jack, lifting platform |
| Double-acting | Both | Oil pressure | Excavator, crane, dozer |
| Telescopic | Usually one | Load weight or oil | Dump truck body |
| Plunger | One | Load weight | Press, lift |
Does your hydraulic cylinder need repair, or do you need a new one?
Send the machine model, main dimensions and a description of the fault — our specialist will contact you to agree on the scope of work and next steps.