There are typically three types of hydraulic pump constructions found in mobile hydraulic applications. These include gear, piston and vane; however, additionally, there are clutch pumps, dump pumps and pumps for refuse vehicles such as dry valve pumps

The hydraulic pump may be the element of the hydraulic system that takes mechanical Hydraulic Pump china energy and converts it into fluid energy in the kind of oil flow. This mechanical energy is taken from what is called the prime mover (a turning push) like the power take-off or directly from the truck engine.

With each hydraulic pump, the pump will be of the uni-rotational or bi-rotational design. As its name implies, a uni-rotational pump is made to operate in one direction of shaft rotation. On the other hand, a bi-rotational pump has the capacity to operate in either path.