Full range of manual and air-operated grease pumps are designed to empty standard 18, 50 or 180 kg lubricating grease drums. Can be connected directly on the greasing points, also suitable for centralised lubricating grease systems. RUIJIE grease pumps have a maximum pressure of 30 and 45 MPa,some time we can make that as you need    Pressure Ratio:50:1              Air Pressure:0.6-0.8MPa   Grease Output:0.9L /Min    Transmission Pressure:30-40MPa N.W/G.W:11.5/13KG  Longth: 410mm 480mm 740mm 940mm(Acceptable Custom)

About the pump we  can OEM or make that as you need