The Groz Bucket Style Air Operated Grease Ratio Pumps 50:1 are the ultimate solution for high-pressure grease pumping. These pumps can effortlessly dispense grease up to 50 times the air inlet pressure. Ideal for industries, workshops, farms, construction sites or as a part of mobile grease systems. Crafted with precision, the all-metal construction with hardened wear-resistant components ensures long-lasting reliability. The 2-1/2" (63 mm) diameter air motor, driven by a reciprocating piston, guarantees consistent operation. A strategically placed strainer at the suction tube inlet ensures clean grease delivery to bearings. The Groz Bucket Style Air Operated Grease Ratio Pumps can provide the maximum grease output of 2.42 lbs./min. (1.10 kg/ min). Available in 3 bucket capacities: 15kg, 30kg & 50 kg. Enjoy high-quality, reliable and efficient grease pumping every time.