This pneumatic grease injector is an essential professional equipment of the mechanization of oil injection. It is widely applicable to automobile industry, shipbuilding industry, engineering machinery, chemical industry, etc. The compressed air grease injector features its safety and reliability, low energy consumption, high working pressure, simple operation and high efficiency, really a must have tool for lubrication in workshop, garage, plant or building market. Equipped with an inverted U-shape handle and two rolling wheels, this pneumatic grease injector is easy to handle and transport.