Jinan Jing Chong Hydraulic Machinery Co., Ltd. was established in 2006, under the AVIC Liyuan Hydraulic Co., Ltd., Shandong and Henan, the only designated agent. The company not only operating in the aircraft hydraulic power source produces a full range of hydraulic pumps, hydraulic motors, and the company's after-sales service center is also in the aircraft hydraulic power source by a duly authorized agent credentials in the Air Force source of all after-sales maintenance services to the north of the Yangtze River hydraulic. Hydraulic motors generally require inversion, so the internal structure should have symmetry, but the hydraulic pump is generally rotated in one direction, do not have this requirement. In order to reduce oil absorption resistance, reducing the radial force, general pump suction port is larger than the size of the oil port. Low pressure and the pressure of the hydraulic motor is slightly higher than the atmospheric pressure chamber, so there is no above-mentioned requirements. Hydraulic motor requirements can work in a wide speed range, therefore, should be used hydraulic bearings or hydrostatic bearings. Because when the motor speed is low, the use of hydrodynamic bearings, it is not easy to form a lubricating synovial. Vane pump with rotor blades together rely on high-speed rotation of the centrifugal force generated by the inner surface of the stator blade is always snapped, and from seal oil, the formation of the working volume. If its use as a motor, blade root must be spring loaded hydraulic motor pump refinement to ensure that the inner surface of the stator blade is always snapped to the normal starter motor. Pump in the structure need to ensure self-priming capability, but it is not required for the hydraulic motor. Hydraulic motor must have a large starting torque. The so-called starting torque, the motor is activated by a stationary state, the torque of the motor shaft can output torque of the torque is generally greater than in the pump running state agents in the same working pressure, so specializing in pumps, in order to make the starting torque torque operating condition as close as possible, requiring the motor torque ripple is small, a small internal friction. Finishing pumps, hydraulic Crystal Chong (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.