What is the role of a hydraulic cylinder?

The role of a hydraulic cylinder is to convert hydraulic energy into linear mechanical motion. This is a fundamental function in hydraulic systems, where the pressurized fluid is directed into the cylinder to push a piston, which in turn moves an attached load or device in a straight line.

Hydraulic cylinders operate on the principle of Pascal’s Law, where an applied fluid pressure results in equal pressure being exerted in all directions. When pressure is applied to the hydraulic fluid inside the cylinder, the piston is forced out, producing linear motion. This motion can be used for lifting, pushing, pulling, or other movements in various applications, from industrial machinery to vehicles.

The other options do not accurately describe the primary function of a hydraulic cylinder. While circulating hydraulic fluid, storing fluid under pressure, and filtering contaminants are indeed important functions within hydraulic systems, they pertain to other components such as pumps, reservoirs, and filters, rather than the hydraulic cylinder itself.