Aluminum alloy, high strength, corrosion resistance, light weight, suitable for a variety of environmental operations. Two-speed feature reduces the number of hydraulic pressure of (imported finishing), the low-pressure chamber load quickly in hard state, and immediately converted into high-pressure hydraulic pump (import agent), shorten cycle time per job. Hydraulic pump works by the movement to bring the change in volume of the chamber, thereby compressing the fluid having a fluid pressure energy. The condition is that the pump must have the seal cavity volume change. Equipped with a pressure regulating valve of the hydraulic pump (import care), can be adjusted to control and set the operating pressure. Hydraulic motor to fluid pressure energy is converted to mechanical energy, and in principle, the hydraulic pump can be used for the hydraulic motor hydraulic pump, hydraulic motor can also be used as a hydraulic pump. But in fact the same type of pump and the hydraulic motor, although similar in structure, but because of the two different operating conditions, so that there are some differences in both structure. Hydraulic pump (import care), crystal create a hydraulic (certified), the hydraulic pump by Jinan Jing Chong hydraulic machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal to create a hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal to create a better future for the hydraulic.