PM45 - 70:1 ratio grease pumps 531 720 mounted onto an air operated inductor plate for use with high viscosity, hard to pump greases directly from 185 kg drum, when the double lip inductor plate is attached to the lower end of the pump tube, it exerts pneumatic, weight and atmospheric pressure on the material forcing pump priming. The inductor plate also serves as protection against contaminants and eliminates material waste. There are two Power Ram models. The BASIC Power Ram includes: Follower plate with double Buna-N lip seals guide rods, Platform base with drum retainers, Controls for raising and lowering the inductor plate with pressure regulator, Ball valve for releasing the vacuum manually when the plate is removed from an empty drum, Pump adapter for fixing the pump to the follower plate. Pump air connection accessories are not included. The BASIC Power Ram includes: · Follower plate with double Buna-N lip seals guide rods · Platform base with drum retainers. · Controls for raising and lowering the inductor plate with pressure regulator. · Ball valve for releasing the vacuum manually when the plate is removed from an empty drum. · Pump adapter for fixing the pump to the follower plate Pump air connection accessories are not included.