Hydraulic machinery refers to equipment and tools that operate by fluid power, and it is widely used in heavy-duty machinery.

In such equipment, hydraulic oil is delivered at high pressure to the actuators via hydraulic pumps, which are driven by internal combustion engines or electric motors. Various hydraulic control valves are operated to regulate the pressure and flow of hydraulic oil as required.

All hydraulic components are interconnected through hydraulic pipelines. A manifold block is usually installed at the bottom of hydraulic valves. Acting as the core control unit, it governs the operation of the entire hydraulic system.