How does a three stage telescopic hydraulic cylinder work?

When a long stroke is required in a tight space, a telescoping three stage hydraulic cylinder is the ideal solution. A telescopic hydraulic cylinder is popular in many industries, especially in mobile applications. The main advantage of this cylinder design is its ability to provide an exceptionally long stroke while maintaining a relatively short retracted length.  Therefore, when mounting space is tight and a long stroke is required, a telescopic cylinder is the answer.

A three stage telescopic cylinder, also called a multi-stage cylinder, can have a collapsed length as small as 20% of the fully extended cylinder length depending on the number of stages.

A common application for a multi-stage cylinder is the dump body on a dump truck. In order to empty a load completely, the dump body must be raised sometimes to an angle of 60 degrees. A single rod cylinder is not suitable here as the retracted length would need to be longer than the required stroke. A dump truck chassis cannot accommodate this collapsed length and a telescopic cylinder is the ideal solution.

Anbao Custom OEM Cylinder Types

Welded Design Hydraulic Cylinder
Integrated Valve Hydraulic Cylinder
Telescopic Hydraulic Cylinder
Mill Duty Hydraulic Cylinder
High Pressure Hydraulic Cylinder
Single Acting Hydraulic Cylinder
Double Acting Hydraulic Cylinder

Custom-hoist Hydraulic Cylinder
Heavy Duty Hydraulic Cylinder
Long Stroke Hydraulic Cylinder
Large Bore Hydraulic Cylinder