Radial piston hydraulic motor works, when the bottom pressure oil through the window fixed with 4 oil into the cylinder axis piston pump domestic maintenance, plunger outwardly tightly against the inner wall of the stator Domestic pump maintenance, due to the existence of a stator and the cylinder eccentricity. Plunger and contact points in the stator, the stator of the reaction force of the plunger. And force can be decomposed into two components. When the oil pressure in the bottom of the plunger is p, the plunger having a diameter of d, and the angle between the force is X, the force produces a torque on the cylinder, so that rotation of the cylinder. Output torque and speed of the cylinder and then out through the shaft end face connection. One series hydraulic motor circuit: the three hydraulic motors in series with each other, with a valve to control the opening stop and turn. Flow through three motors are substantially equal, the same, each motor speed is also essentially the same in its displacement, higher oil pressure hydraulic pump, pump flow can be smaller, generally used for high-speed light-load situations . Series circuit of the two hydraulic motors: This circuit controls a motor of each valve, the operation of each pump motor may be used alone, may be operated simultaneously, and each of the steering motor is also arbitrary. The oil pressure pump working pressure of each motor and, for high-speed low torque applications. Domestic pump hydraulic agent _ Crystal Chong (certified) _ Jinan crystal by creating a hydraulic pump 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.