800CC Heavy Duty Grease Gun – 18000PSI, Seamless Steel Tube, Precision Threaded Nozzle

Extra large 800CC heavy duty grease gun with 18000PSI working pressure, precision seamless steel tube, heat-treated precision threaded nozzle, lever handle. Less refilling for industrial & farm use. OEM/ODM available.

一、Product Overview

The WD&WL 800CC Large-Capacity Grease Gun is specifically designed for high-volume lubrication operations. Manufactured from precision seamless steel tube, the barrel is robust and highly pressure-resistant. The 800CC extra-large cartridge design holds twice the grease of ordinary 400CC grease guns, dramatically reducing mid-job refills and significantly boosting continuous work efficiency. The precision-threaded nozzle enables easy loading and unloading, and is professionally heat-treated for long-lasting durability. The lever handle design applies mechanical advantage for effortless grease application. With working pressure up to 18,000 PSI, it meets the high-pressure, high-volume lubrication demands of heavy machinery, agricultural equipment, and industrial facilities.

二、Key Selling Points

1. 800CC Extra-Large Capacity, Doubled Efficiency
The 800CC extra-large capacity is this product’s core advantage — holding twice the grease of ordinary 400CC grease guns. For high-volume greasing applications such as mining equipment, agricultural machinery, and large construction equipment, refilling frequency is cut in half, dramatically reducing downtime and significantly boosting work efficiency.

2. Precision Seamless Steel Tube, Strong & Pressure-Resistant
The barrel is manufactured from precision seamless steel tube with no weld seams or weak points, offering far superior pressure resistance compared to ordinary welded tubes. It maintains structural integrity without deformation or bursting even under 18,000 PSI high-pressure operation, ensuring safe and reliable long-term use.

3. Precision Threaded Heat-Treated Nozzle, Easy & Durable
The nozzle features precision threading for smooth engagement and excellent sealing, enabling quick and easy loading/unloading. The nozzle undergoes professional heat treatment (quenching and tempering), significantly enhancing hardness and wear resistance — resisting deformation and thread stripping through repeated assembly/disassembly.

4. Lever Handle Design, Effortless Operation
The handle applies scientific lever mechanics — minimal hand grip force generates powerful grease output pressure. Even with the 800CC large-capacity load, operation remains effortless. Extended continuous greasing sessions cause minimal hand fatigue, significantly improving work efficiency and operational comfort.

5. 18,000 PSI High Pressure, Professional-Grade Performance
Working pressure reaches up to 18,000 PSI (approximately 1,241 bar), easily handling various high-pressure lubrication scenarios. Whether greasing heavy machinery bearings, mining equipment joints, or large industrial equipment lubrication points, it delivers precise and efficient grease application every time.

6. Professional-Grade Materials, Built to Last
From seamless steel tube selection, heat treatment process to seal materials, every component uses industrial-grade high-quality materials. The 800CC large-capacity grease gun is designed for high-intensity, high-frequency professional applications, maintaining excellent performance over extended service life.

三、Product Specifications

Item W40084
Capacity 800CC
Working Pressure 18,000 PSI (≈1,241 bar)
Barrel Material Precision Seamless Steel Tube
Nozzle Design Precision Threaded (Heat-Treated)
Handle Type Lever Handle
Box Qty 1 pc
Carton Qty 10 pcs
Net Weight 1.96 kg
Gross Weight 21.80 kg

四、Capacity Comparison Reference

Size Capacity Vehicles per Fill (approx.) Machines per Fill (approx.)
Standard 400CC 13-20 / vehicles 5-10 / machines
Large Capacity 800CC 26-40/ vehicles 10-20 / machines

五、Applications

  • Mining Equipment: Lubrication maintenance of mining trucks, loaders, crushers, conveyors, and other large mining machinery
  • Agricultural Machinery: Multi-point lubrication maintenance of large tractors, combine harvesters, seeders, and other farm equipment
  • Heavy Construction Machinery: Maintenance of excavators, bulldozers, road rollers, lifting equipment, and other large construction machinery
  • Industrial Production Lines: Regular lubrication of large machine tools, conveyor systems, fans, compressors, and other industrial equipment
  • Large Fleets: High-volume centralized vehicle maintenance for logistics companies, bus fleets, and freight fleets
  • Marine Repair: Lubrication maintenance of large ship deck machinery, steering gears, windlasses, and winches
  • Steel & Metallurgy: Lubrication maintenance of metallurgical equipment, rolling mills, cranes, and other high-temperature heavy-load equipment
  • Energy & Power: Lubrication maintenance of wind turbine units, hydropower station equipment, and power transmission facilities

六、Why Choose WD&WL

1. Direct Manufacturer, Professional Production
WD&WL is a professional hand tool manufacturer with our own factory and comprehensive quality management system. Every step — seamless steel tube selection, heat treatment process, assembly and testing — is controlled in-house to ensure consistent, reliable quality for every 800CC grease gun.

2. 800CC Large Capacity, Real Efficiency Boost
The 800CC extra-large capacity is a specification truly designed for professional users. With twice the loading capacity of standard models, it means less downtime for refilling and higher continuous work efficiency. For mining, agriculture, and large-scale construction applications, large capacity equals greater productivity.

3. Seamless Steel + Heat-Treated Nozzle, Quality Guaranteed
The barrel uses precision seamless steel for safe, reliable pressure resistance. The heat-treated nozzle is durable and thread-stripping resistant. From core materials to detailed craftsmanship, every element reflects professional quality — ensuring long-term stable performance under high-intensity, high-pressure working conditions.

4. Lever Design, Large Capacity Without Fatigue
The scientifically designed lever handle — even with the increased weight of an 800CC full load — delivers effortless grease dispensing. Extended continuous operation causes no hand fatigue — one of the key distinctions between professional and ordinary grease guns.

5. OEM/ODM Customization
We support brand logo customization (laser engraving/silk-screen printing), color customization, and packaging customization. Our professional team will assist you in developing your industrial tool brand customization plan.

6. Fast Delivery, Ample Stock
We maintain ample stock for standard specifications with fast shipping after order confirmation. Large orders also come with clear delivery time commitments to keep your supply chain running smoothly.

七、FAQ

Q1: Which one should I choose: the 800cc or the 400cc grease gun?

A: If your work mainly involves automotive maintenance and small equipment servicing at medium-to-small scale, the 400CC model is lightweight and versatile — the ideal choice. If your work involves mining, agriculture, or large construction machinery requiring high-volume greasing, the 800CC large capacity cuts refills in half and dramatically boosts continuous work efficiency — the more worthwhile choice. Generally, for users operating more than 2 hours daily with high grease volume, the 800CC offers a better return on investment.

Q2: Will an 800cc model be too heavy?

A: The 800CC grease gun weighs 1.96kg (approximately 4.3 lbs) empty, and about 2.8-3.0kg when full of grease. It is heavier than the 400CC model (approximately 1.2kg empty, 1.6kg full), but the lever handle design distributes force across both hands during greasing — in actual use, it doesn’t feel particularly heavy. For professional users, the efficiency gains from large capacity far outweigh the impact of added weight.

Q3: Is a working pressure of 18,000 PSI sufficient?

A: 18,000 PSI equals approximately 1,241 bar or 124 MPa — the standard working pressure for professional-grade grease guns. This pressure is sufficient for the vast majority of lubrication scenarios: automotive chassis ball joints (5,000-8,000 PSI), heavy machinery bearings (10,000-15,000 PSI), mining equipment joints (12,000-16,000 PSI). The 18,000 PSI rating provides ample margin to ensure normal grease output even under the toughest working conditions.

Q4: What is the difference between seamless steel pipes and ordinary welded pipes?

A: Seamless steel tube is formed as one piece with no weld seams, providing uniform and far superior pressure resistance compared to welded tubes. Welded tubes have weak points at the weld seams that can burst under high pressure. Although seamless tubes cost more, their safety and service life far exceed welded tubes, making them the preferred material for professional grease guns. For the 800CC large-capacity model with higher loading and usage frequency, the safety advantage of seamless steel is especially critical.

Q5: What type of grease does this grease gun use?

A: Compatible with standard 400CC grease cartridges (requires two cartridges to reach 800CC), and also supports bulk grease direct loading. We recommend NLGI #1, #2, or #3 grade general-purpose lithium-based grease or extreme-pressure grease, selected according to the equipment manufacturer’s recommendations.

Q6: What are the benefits of heat treatment for threaded connections?

A: After heat treatment (quenching and tempering), the nozzle’s hardness increases from HRC 20-25 (ordinary steel) to above HRC 50-55, with greatly improved wear resistance. Ordinary nozzles are prone to wear, thread stripping, and seal failure after repeated assembly/disassembly. Heat-treated nozzles are long-lasting — resisting deformation and thread stripping through repeated use, with sealing performance maintained stably over time.

Q7: Can an 800cc grease gun be loaded with two 400cc cartridges?

A: Yes, the 800CC grease gun barrel is designed to accommodate two standard 400CC grease cartridges. It can also be loaded with bulk grease directly. When loading bulk grease, be sure to eliminate air pockets to prevent air lock that could affect grease output.

Q8: Is an 800cc grease gun suitable for DIY users?

A: The 800CC large-capacity grease gun is primarily designed for professional users and high-frequency applications. If you’re a DIY user with occasional needs for one or two vehicles, the 400CC model may be lighter and more economical. However, if you have multiple pieces of equipment, farm machinery, or vehicles requiring regular maintenance, the 800CC large capacity will make your maintenance work more efficient and hassle-free.