Graco Air Operated Grease Pump, 50:1 Ratio, 180kg Drum, Made in USA - 239888

Graco Pneumatic Grease Pump

The Graco 239888 Fire-Ball 300 sets the global benchmark as a premier air operated grease pump, strictly engineered for high-pressure, medium-volume industrial lubrication. Functioning as a highly efficient pneumatic piston grease pump, this American-made workhorse perfectly accommodates large 400 lb drums. By utilizing a powerful 50:1 pressure ratio, it transforms standard compressed air ranging from 3 to 9.7 bar into a staggering maximum fluid working pressure of 8400 psi (580 bar). This commanding force effortlessly drives heavy, high-density grease (up to NLGI #2) through long supply lines in automotive dealerships, commercial fleet maintenance facilities, and fast lube centers.

Building on decades of unrivaled industry reputation, the architecture of the Fire-Ball 300 is focused on maximizing operational uptime. The unit integrates a 3-inch (76.2 mm) double-acting air motor housed within thick cast aluminum, ensuring steady flow and accurate dispensing. Its smart in-line structural design perfectly aligns the air motor piston with the fluid rods, drastically minimizing internal mechanical stress and extending seal life. Furthermore, an innovative air porting system efficiently manages the compressed air supply to eliminate ice buildup during continuous operation, while non-metallic poppet valves provide positive sealing even when exposed to contaminated air lines. Weighing just 22 lb (10 kg) with a controlled noise profile of only 77.8 dB(A), this system combines quiet efficiency with legendary structural longevity.

Key Features & Benefits:

• High-Pressure Performance: The 50:1 power ratio securely multiplies input air to deliver an immense maximum fluid working pressure of 8400 psi (580 bar).

• Reliable Fluid Flow: Features a 3-inch (76.2 mm) differential air motor paired with a double-acting pump design to provide a highly steady and accurate dispensing flow.

• Heavy-Duty Construction: A thick cast aluminum air motor housing offers unmatched structural durability, protecting vital components in rigorous industrial environments.

• Corrosion-Resistant Design: Utilizes specialized liquid salt nitriding, nickel plating, stainless steel, aluminum, and chrome on vital internal parts for exceptional longevity.

• Extended Seal Life: The clever in-line structural design firmly aligns the air motor piston and fluid rods to reduce internal mechanical stress and maximize seal lifespan.

• Fewer Mechanical Repairs: Intelligently designed with fewer moving parts within the air motor assembly to cut down workshop downtime and lower long-term maintenance costs.

• Superior Valve Sealing: Non-metallic poppet valves offer positive and reliable sealing performance, even when operating within contaminated or inherently "dirty" air lines.

• Anti-Icing Performance: A large air porting system efficiently manages and exhausts the compressed air supply to completely eliminate ice buildup during continuous pump operation.

• Large Drum Compatibility: Engineered specifically with an elongated frame to securely fit inside standard 400 lb (180 kg) commercial grease drums.

• Thick Fluid Capability: Capable of easily handling heavy, high-density industrial greases up to a maximum NLGI #2 rating without losing internal suction.

• Wide Operating Range: Runs smoothly and efficiently on a highly versatile compressed air input pressure range spanning from 30 up to 140 psi (3.0 to 9.7 bar).

• Standard Threaded Connections: Equipped out-of-the-box with a 3/8-inch female NPT air inlet and a robust 1/4-inch female NPT fluid outlet for universal hose connectivity.

• Controlled Noise Level: Operates quietly within workshop spaces at a meticulously measured acoustic sound level of only 77.8 dB(A).

• Compact & Lightweight: The elongated 49.3-inch frame is incredibly easy to lift, maneuver, and install, weighing a surprisingly light 22 lb (10 kg).

• Premium Wetted Materials: Constructed utilizing high-grade steel, brass, aluminum, acetal, nitrile rubber, and polyurethane for supreme chemical compatibility.

• American Made Quality: Manufactured directly in the United States (USA), ensuring operators receive the trusted reliability and rigorous quality control expected from Graco.