Hydraulic oil in the form of a straight axis swashplate pressure cylinder power plugs from the sucking-two oil types. Pressure for large liquid-type oil pump are using air pressure tank, also supplemented with liquid-type oil pump oil with the body of the cylinder to provide pressure oil pump suction inlet from. Self-absorbing capacity pump is strong, no external oil supply. Found cylinder speed drops or stuffy that should be made, when the car of pump maintenance, inspection impeller edge now whether there is injury blow as repairs hydraulic pumps, internal gear pump gap is too large. For self-absorbing fluid, oil pump piston cylindrical pressure tank shall not be less than the lower limit of the oil standard sufficient enough to hold the hydraulic pump protection, the number of hydraulic oil. Cleanliness of the hydraulic oil pump pressure liquid pump sales, high service life is longer. Quantitative piston pump / motor 1) the cylinder axis of the spindle axis at an angle that is constant axial piston element bent shaft structure, with a fixed displacement. In the open or closed hydraulic system hydraulic drive to work as a pump or motor condition condition. 2.) When a pump mode, the flow is proportional to the drive speed and displacement. 3) When a motor condition, the output speed is proportional to the input flow. And inversely with displacement. With output torque is proportional to the high side and the low side. 4.) structure spherical valve plate, for rotating assembly is good for the features, and speed stability, low noise. 5) As a result of the radial thrust bearing, can withstand the radial load. 6.) comply with ISO standard mounting flange, versatility. 7.) The system uses reasonably clean of anti-Mo, fire resistant hydraulic oil medium, extended service life, increased use of the occasion. Hydraulic oil should be replaced every six months. Output shaft: flat keys, splines are free to choose! Maintenance of hydraulic pumps, hydraulic creating crystal quality assurance (certification), the hydraulic pump 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.