Forging machinery applies pressure to the metal to form or separate it. One of the salient features of metal forming technology is high acceleration and braking force. At the same time, it is also developing in the direction of energy saving, which requires a high degree of coordination of various components to provide better performance. The V30D series axial piston variable pump and the main hydraulic cylinder of the 8000-ton forging press provided by Hengli for forging machinery have superior performance and are compatible with other components to ensure more efficient and energy-saving operation on site.