Variable motor applications on the crane collapsed Edit this paragraph crane hoisting motor performance will directly affect the efficiency of the machine, but also related to personal and machine safety. So understanding crane hoisting motor structure and working principle, maintenance and use of cranes are essential. In order to ensure crane reliability and safety of the hydraulic motor repair, Xuzhou Heavy plant and the motor factory joint research Liyuan Hydraulic motors, introduced a new variable motor, the motor is a hydraulic variable control stress-related manner, It allows infinitely variable displacement motor with the pilot pressure signal. Pump according to the shape and movement into major motion member: gear pumps, vane pumps hydraulic motors, hydraulic piston motor test, screw. Where: 1: Gear pumps are divided into external gear pumps and internal gear pumps, 2: vane pump is divided into: double acting vane pump, single acting pumps and pump cam rotor blades. 3: piston into radial piston pump and the axial piston pump. 4: Screw into single screw twin screw and three screw hydraulic motor parts, hydraulic creating crystal quality assurance (certification), the hydraulic motor from 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 creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.