L8VO140LA1H2 / 63R1-NZG05F174 oblique axis variable piston dual pump hydraulic characteristics: This type of pump has a bent axis type variable displacement piston pumps arranged in two parallel domestic pumps, beside the main pump, auxiliary drive interface, the auxiliary drive Interface can be installed multi-joint piston pump and gear pump hydraulic test, form the hydraulic system for the hydraulic pump integrated set of multi-circuit hydraulic oil source. Meanwhile, the pump also with a built-in auxiliary gear pump, and a pressure relief valve and electro-hydraulic proportional valve. Main pump is a variable control constant power control, positive flow control, pressure control and variable cut off power control in one of the complex control, but also to change or add other control functions according to user requirements to meet the requirements of the host. These products are widely used in the 80 tons to 300 tons crawler crane, can be used on large tonnage excavators, concrete pumps and other construction machinery. The main role of the hydraulic tank of hydraulic oil tank in the hydraulic system for the storage, cooling, separating the oil contained in the air and eliminate foam. First of all to consider the selection of tank capacity hydraulic pump repair, general mobile device to capture the maximum pump flow rate of 2 to 3 times the pump, stationary devices take 3 to 4 times; Second, consider the oil tank when the hydraulic systems are all projected oil tank not lower than the minimum oil level When the oil cylinder retraction shall not exceed the maximum oil level; and finally consider the tank structure, the separator tank and conventional precipitated dirt can not play the role of the tank should be installed along the longitudinal axis a vertical partition. Leave gaps between the separator tank at one end and the end plate on both sides of the separator space communication, the hydraulic pump oil inlet disposed at one end on both sides of the separator is not connected, so the oil into the oil and return the distance between the farthest, hydraulic tank up some more cooling effect. Pump maintenance, crystal creating hydraulic spot (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.