Grease Pumps are semi-solid lubricants that is applied to moving mechanical components. This functions like a gearbox, allowing the air-driven motor's power to be increased to provide the high pressures necessary to move the grease. They have a ratio, which is the difference in effective area between the lower end plunger rod and the air motor piston. Grease Pumps are very economical and can be easily purchased by our eminent customers, at nominal pricing. They require very low maintenance and replacement costs.