grease pump, oil pump, air operated pump, lubricant tools, Different pressure ratio, varied models of products available we have series of grease pump, oil pump, air operated grease pump, air operated oil pump.Pressure ratio: 50:1 Pressuer air:0.5-0.7Mpa Head pressure:30Mpa Oil feeding rate:1000g/min pressure pipe length:4m Jerrican volume:40L weight: 21kg Boundary dimension:510*440*940mm