The hydraulic power unit is organically integrated into one by components such as oil pumps, motors, multi-purpose integrated blocks, and hydraulic valves. It adopts advanced hydraulic components like high-pressure gear pumps, cartridge valves, and stack valves. According to different needs, it can form various hydraulic circuits. Compared with conventional hydraulic stations, it is smaller in size, lighter in weight, energy-saving and reliable, and cheaper in price.