Pump Series 234700-4

The pneumatic grease pump is an assembly consisting of a cam pneumatic motor connected to a piston-pump located at the bottom of the suction unit. This equipment is required in all working conditions where grease needs to be pumped under pressure (such as bearings, hubs, pins, fittings, etc.).

This machine can be considered as a pressure pnumo-hydraulic multiplier: pressure ratio (PR) is given by the ratio between the pneumatic (motor) and the hydraulic (pump) sections. When the motor is supplied with a pressure (P1), the pump will generate another pressure (P2) as a result of the multiplication P1 X PR.

The motor consists of a pneumatic cylinder slave to an automatic device which alternatively supplies two chambers determining the in-continuous movement. Pump designing features allow the suction of high viscosity fluids without pump priming or oil addition for pump operation.