Professional Grease Gun – 400CC, 18000PSI, Seamless Steel Tube, Lever Handle Design

Heavy-duty grease gun with 400CC capacity, 18000PSI working pressure, precision seamless steel tube, lever handle design. For industrial & automotive lubrication. OEM/ODM available. WD&WL manufacturer.

一、Product Overview

The WD&WL Grease Gun is manufactured from precision seamless steel tube, providing a robust barrel with superior pressure resistance. The precision-threaded nozzle enables easy loading and unloading while effectively preventing dust and sand from entering and damaging internal mechanisms. The lever-handle design applies mechanical advantage for effortless operation during grease application. The threaded nozzle is professionally heat-treated for long-lasting durability, resisting deformation through repeated assembly and disassembly. With a working pressure of up to 18,000 PSI, it meets the high-pressure lubrication demands of industrial equipment, automotive chassis, heavy machinery, and more. The 400CC large-capacity cartridge design reduces the frequency of refilling, boosting work efficiency.

二、Key Selling Points

1. 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.

2. Precision Threaded Nozzle, Easy Loading & Dust-Proof
The nozzle features precision threading for smooth engagement and excellent sealing, enabling quick and easy loading/unloading. The tight seal effectively blocks dust, sand, and contaminants from entering the barrel, protecting the piston and seals from wear and extending product service life.

3. Lever Handle Design, Easy & Effortless Operation
The handle applies scientific lever mechanics — minimal hand grip force generates powerful grease output pressure. Extended continuous greasing sessions cause minimal hand fatigue, significantly improving work efficiency and operational comfort.

4. Heat-Treated Nozzle, Long-Lasting Durability
The nozzle undergoes professional heat treatment (quenching and tempering), significantly enhancing hardness and wear resistance. It resists deformation and thread stripping through repeated assembly/disassembly, maintaining thread precision and consistent sealing performance over time.

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 automotive chassis ball joints, heavy machinery bearings, or industrial equipment lubrication points, it delivers precise and efficient grease application every time.

6. 400CC Large Capacity, Less Frequent Refilling
The 400CC large-capacity cartridge design allows extensive greasing on a single load, reducing time wasted on frequent disassembly and refilling. Especially suitable for batch equipment maintenance and large-scale machinery lubrication operations.

三、Product Specifications

Item W40082
Capacity 400CC
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 20 pcs
Net Weight 1.18 kg
Gross Weight 25.10 kg

四、Applications

  • Automotive Maintenance: Lubrication of chassis ball joints, suspension systems, steering knuckles, and wheel hub bearings
  • Heavy Machinery: Pin shaft and joint bearing lubrication for excavators, loaders, bulldozers, and other construction equipment
  • Industrial Equipment: Regular lubrication maintenance of motor bearings, pump bearings, conveyor rollers, and gearboxes
  • Agricultural Machinery: Maintenance of lubrication points on tractors, harvesters, and other farm equipment
  • Mining Equipment: Lubrication maintenance of mining vehicles, crushing equipment, and conveying systems
  • Marine Repair: Lubrication maintenance of ship deck machinery, steering gears, and winches
  • Construction: Lubrication maintenance of tower cranes, concrete pump trucks, and lifting equipment
  • DIY & Home: Daily lubrication maintenance of bicycles, motorcycles, and small machinery

五、Why Choose Us

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 grease gun.

2. Seamless Steel Tube, Safe & Reliable
The barrel is made from precision seamless steel tube with no weld weak points, offering far superior pressure resistance than ordinary welded tubes. Every unit passes 18,000 PSI pressure testing, ensuring safe operation under extreme conditions with zero risk of barrel bursting.

3. Lever Design, Comfortable Operation
The scientifically designed lever handle generates powerful grease output with minimal effort. Extended continuous operation causes no hand fatigue — one of the key distinctions between professional and ordinary grease guns.

4. Precision Threaded Dust-Proof Design, Longer Life
The precision-threaded seal effectively blocks dust and contaminants from entering, protecting internal pistons and seals. The heat-treated nozzle resists deformation through repeated assembly/disassembly. These detailed design features ensure a significantly longer service life than comparable products.

5. OEM/ODM Customization
We support brand logo customization (laser engraving/silk-screen printing), color customization, packaging customization, and capacity specification 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.

六、FAQ

Q1: What does a working pressure of 18,000 PSI mean, and is it 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 more than sufficient for automotive chassis ball joints (typically requiring 5,000-8,000 PSI) and heavy machinery bearings (typically requiring 10,000-15,000 PSI). The 18,000 PSI rating provides ample margin to ensure normal grease output even under the toughest working conditions.

Q2: How long will the 400cc capacity last?

A: The 400CC capacity holds approximately 400ml of grease. Usage duration depends on greasing frequency and amount per application. For typical automotive maintenance (approximately 10-15 grease points per vehicle, 2-3ml per point), one fill can service approximately 13-20 vehicles. For heavy machinery with larger single-application volumes, approximately 5-10 machines can be serviced per fill.

Q3: What type of grease does this grease gun use?

A: Compatible with standard 400CC cartridge-style grease (grease cartridges), 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.

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.

Q5: What’s the difference between a lever-action and a piston-type grease gun?

A: Lever-style grease guns use handle leverage to push the piston for grease output — more effortless operation and higher output pressure, suitable for high-pressure greasing scenarios. Pistol-style (piston-type) grease guns use a push-pull piston rod — simpler structure but relatively lower output pressure. Lever-style is better suited for professional industrial and automotive maintenance applications.

Q6: What are the benefits of the precision threaded design?

A: Precision-threaded nozzles are machined to tight tolerances for smooth engagement without binding, with excellent sealing that effectively prevents dust and contaminants from entering the barrel. Ordinary rough threads are prone to stripping and poor sealing, leading to grease leakage or internal mechanism wear. Heat-treated precision threads are more durable and resist deformation through repeated assembly/disassembly.

Q7: Can bulk grease be added?

A: Yes. This grease gun supports two loading methods: ① Use standard 400CC grease cartridges — simply insert and use, the most convenient method; ② Open the front end of the barrel and load bulk grease directly. When loading bulk grease, be sure to eliminate air pockets to prevent air lock that could affect grease output.