GRACO FIRE-BALL 300 GREASE PUMP
$3,476.00
The Graco Fire-Ball 300 50:1 has been a trusted industry pump for decades, built to deliver reliable grease dispensing in high-pressure applications. Designed with fewer moving parts and heavy-duty materials, it is built to withstand harsh conditions, minimise downtime, and maximise productivity. Many Fire-Ball pumps installed decades ago are still operating efficiently today — a true testament to their durability.
Ideal for grease dispense applications in automotive workshops, fleet maintenance facilities, mining, and industrial service centres, the Fire-Ball 300 50:1 is engineered for long service life and consistent performance.
Key Features & Benefits
- Reliable Grease Flow – A 76.2 mm (3″) differential air motor with a double-acting pump design ensures smooth, accurate grease dispensing.
- Heavy-Duty Durability – Thick cast aluminium air motor housing provides unmatched strength for demanding environments.
- Lower Maintenance Costs – Fewer moving parts in the air motor mean less downtime, fewer repairs, and reduced operating expenses.
- Extended Seal Life – In-line pump design keeps the air and fluid pistons aligned, maximising seal longevity.
- Minimised Downtime – Displacement rods are engineered with Graco’s proprietary process to reduce wear and extend service intervals.
- Superior Sealing – Non-metallic poppet valves maintain positive sealing, even in dirty air conditions, for long-term reliability.
- Reduced Icing – Large air porting improves compressed air efficiency, allowing continuous operation with less risk of icing.
- Corrosion-Resistant Build – Protected with liquid salt nitriding, nickel plating, stainless steel, aluminium, and chrome on key components for longer life.
Technical Specifications
| Air Inlet Size (in) | 3/8 |
| Air Inlet Size (mm) | 9.525 |
| Air Inlet Thread Gender | Female |
| Air Inlet Thread Type | NPT |
| Air Motor Effective Diameter (in) | 3 |
| Application | Industrial |
| Compatible Material | Grease |
| Cycles Per Gallon | 345 |
| Fluid Inlet Thread Gender | Female |
| Fluid Inlet Thread Type | NPT |
| Fluid Inlet Type | Slotted |
| Fluid Outlet Size (in) | 1/4 |
| Fluid Outlet Size (mm) | 6.35 |
| Fluid Outlet Thread Gender | Female |
| Fluid Outlet Thread Type | NPT |
| For Use With | Grease |
| Maximum Air Inlet Pressure (bar) | 9.65 |
| Maximum Air Inlet Pressure (kPa) | 965 |
| Maximum Air Inlet Pressure (psi) | 140 |
| Maximum Continuous Cycle Rate (cpm) | 76 |
| Maximum Intermittent Cycle Rate (cpm) | 76 |
| Maximum Working Pressure (MPa) | 58 |
| Maximum Working Pressure (bar) | 580 |
| Maximum Working Pressure (kPa) | 58000 |
| Model | Fire-Ball |
| Power Type | Pneumatic |
| Pump Ratio | 50:1 |
| Series | 300 |
| Sound Power Level (dB(A)) | 85.6 |
| Sound Pressure Level (dB(A)) | 77.8 |
| Type | Pneumatic Piston Pump |
| Weight (kg) | 0.9988 |
| Wetted Material | Steel, Brass, Aluminium, Acetal, Nitrile Rubber, Polyurethane |




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