KP55A lifting gear pumps are mainly applied in 4・6 tons dump truck\u2029hydraulic system th, hydraulic power sours of bucket cylindtr.\u2029Adopting the material of high strength casting iron and the advanced\u2029technology of double metal side pl«te$ with special structure to\u2029connect control-valve/ return-valve and pump as a whole body, the\u2029pumps are featured of strong resistance of high working pressure,\u2029long lifetime, smart and simple hydraulic system as integration of\u2029pump and valve, which makes the pump being the ideal power source\u2029of dump truck hydraulic system.\u2029Theoretical displacement 55ml"\u2029Rated pressure: 70kgf/cm,\u2029Steel cMe force of controlling valve: 13kg\u2029ToUlweightofoil pump: 13kg\u2029Oil filter precision: s25um\u2029Oil suction height: s500mm\u2029Drive: use flexible coupling by direct drive\u2029Dirtction of rotation: count*rcl^ckwi$< (from$h«ft tnd of pump)