L8VO140LA1H2 / 63R1-NZG05F174 oblique axis variable piston dual pump hydraulic characteristics: This type of pump has two parallel arrangement of oblique axis piston pump hydraulic repair, next to the main pump, auxiliary drive interface, the auxiliary drive Interface can be installed multi-joint piston pump and gear pump hydraulic system for the formation of an integrated set of multi-circuit hydraulic pump 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. Variable piston pump with axial and radial variable displacement piston variable piston pump two kinds. Now axial variable piston example to illustrate how it works: When the motor drives the shaft rotates, the pump cylinder rotates together with the plunger domestic pumps, plunger head remains in contact with the swash plate, the swash plate and the cylinder into a angle of the hydraulic pump maintenance, the swash plate does not turn. When the cylinder rotates, due to the action of the swash plate hydraulic ramps, the plunger will be reciprocated in the pump cylinder. Go low when the plunger swash plate, piston-cylinder volume increases, so the liquid through the oil pan of the suction port cylinder inhalation; and when the plunger swash plate to a high point, piston-cylinder volume decreases, cylinder liquid through the outlet of the oil pan drain fluid. As long as the constant rotation of the drive shaft, the liquid will continue to be sucked and discharged. Change the swash plate angle, you can change the plunger in the pump cylinder stroke length, you can change the pump flow. Fixed tilt angle is called quantitative pump, the tilt angle can be changed it is called a variable pump. Pump maintenance, hydraulic pumps, hydraulic creating crystal factory direct crystal provided by the Jinan Chong Hydraulic Machinery Co., Ltd .. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead crystal create hydraulic and you hand into the brilliant, for a better future!