The best Pneumatic grease gun should allow you to apply the lubricant at the right spot, pressure, and at the right saturation.

Also referred to as air pressure guns, these handy tools are specifically designed to deliver grease under pressure for Improved lubrication efficiency.

Whether you are a professional mechanic or just a DIY hobbyist, you need to use the right Pneumatic gun for each greasing application.

The Best Air Grease Guns

To get the right unit, you need to consider such things as the type, loading mechanism, and accessibility. Reviewed below are the top seven air grease guns you should consider.

Best Pneumatic Grease Guns

Model Max Output Pressure Gun Weight 
Lincoln 1162 6000 PSI5.375 Pounds
AZUNO Pneumatic Grease Gun6000 PSI 3.32 pounds
OTC 2310 Air Operated Grease Gun4800 PSI 5 pounds 
Ampro A3710 Air Grease Gun6000 PSI 3.4 Pounds
LockNLube Dual-6000PSI5 Pounds 
BestEquip Portable 20L 5,800 PSI36.9 pounds
DEWALT 20V MAX Cordless Grease Gun10,000psi14.8 Pounds

1.Lincoln 1162 Fully Automatic Pneumatic Grease Gun – The Best Air-Operated Grease Gun Overall

The Lincoln 1162 is a fully automatic air-operated gun that features a variable speed trigger, and a combination of filler coupler. It features a patented pump design, which ensures that you get uninterrupted grease flow. 

The model features ergonomic styling, which allows for enhanced comfort and control of the gun in use. It comes with a 30-inch high-pressure flexible hose, and a coupler valve, which allows for easier access to various lube points. 

The variable speed trigger allows for easier control of grease flow in various applications. The advanced pump design of this model eliminates traditional priming issues.

With such a model, you will be able to boost productivity significantly. 

 

Sale
Lincoln 1162 Fully Automatic Heavy Duty Pneumatic Grease...
  • Fully automatic with continuous operation and grease flow
  • Variable-speed trigger provides excellent grease flow control
  • 30 inch high-pressure hose with coupler and attachment clip

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  •  Offers remarkable dependability and durability
  •  Allows for automated continuous operation
  •  Features a comfortable grip with a convenient variable speed trigger
  • Comes with a combination filler nipple and bleeder valve
  • Features an advanced design for improved flow performance

Possible Drawbacks 

The grease gun may not be the right fit for your grease fittings, requiring you to purchase additional quick connect couplers—sold separately.

2.AZUNO Pneumatic Grease GunThe Best Heavy-Duty Pneumatic Grease Gun

Are you looking for a great air-powered grease gun for heavy-duty industrial applications? The Azuno air grease gun is one such model, perfectly suited for all marine, automotive, excavator, and agricultural equipment greasing applications.

The powerful gun has been specially designed for easy control and reduced fatigue, especially in applications that require you to apply large volumes of grease. The unit requires 30 to 150 PSI of compressed air to function. 

Depending on the intended application, the Azuno Pneumatic grease gun can deliver between 1,200 and 6,000 PSI of pressure at the output nozzle.

The unit comes with several accessories, making the gun quite versatile in actual working conditions. 

Sale
AZUNO Pneumatic Grease Gun, Heavy Duty 6000 PSI Air...
  • 6 item include air grease gun, flex hose, metal extension pipe, sharp type nozzle, normal grease coupler and AZUNO quick connect coupler
  • Unique knurled thick wall barrel for secure grip
  • Trigger lever operated feature lubricates with putting out 1200-6000 PSI making it faster than a standard hand up

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • The handle has a no-slip design, featuring unique knurling on the barrel for enhanced grip
  • Has an air vent to help you bleed out any trapped air from the grease after refilling

Comes with a metal extension pipe, flexible horse, sharp-type nozzle, and a standard grease coupler as accessories

The gun is adaptable to different loading methods, including bulk filling, suction load, or using 14 oz. standard grease cartridges 

Boasts of an output pressure of up to 6,000 PSI, hence is suited for a vast array of applications

Possible Drawbacks 

This grease gun model is only suited for heavy-duty industrial applications, it will be an ‘overkill’ for simple DIY greasing applications.

3.OTC 2310 Air Operated Grease GunThe Best Cartridge Air-Operated  Grease Gun

The OTC 2310 Air-Operated Grease gun features a die-cast aluminum head construction with an automatic bleeder valve. Rated 4800 psi of output pressure, the OTC 2310 is without a doubt one of the best industrial-grade Pneumatic grease guns in the industry. 

The model has a relatively large pumping chamber, which had been designed for simplified rapid operation.

The manufacturer offers a 6-inch bent steel extension, easy access 24-inch high-pressure grease hose, and 3-jaw slim coupler as accessories with each purchase. 

With regards to grease loading, the OTC 2310 uses standard 14 oz. grease cartridges. With an assortment of universal adapters, this gun makes it easy for you to get the grease precisely where it is required. 

OTC 2310 Air Operated Grease Gun
  • Heavy duty die cast aluminum head
  • The head is fitted with an automatic air bleeder
  • Larger pumping chamber honed for rapid operation

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • Features heavy-duty die-cast aluminum construction
  • Has a large pumping chamber, which allows for efficient and rapid operation
  • Comes with several accessories, including a 24-inch pressure grease hose, 3-jaw coupler, and a 6-inch bent steel extension
  • Compatible with standard 14 oz. cartridges, allowing for easy and convenient refills
  • Delivers a relatively high output pressure of about 4800 psi

Possible Drawbacks 

At five pounds, the grease gun is one of the heaviest in its class. As such, it will cause a certain level of fatigue if used for extended periods. 

4.Ampro A3710 Air Grease GunThe Most Versatile Air-Operated Grease Gun

With a 400 cc capacity the A3710is a great professional tool for use in the automotive industry as well as in light-duty industrial applications. For enhanced versatility, the model supports three-way grease loading options. 

It is compatible with standard 14 oz. cartridges and may also be refilled using bulk loading. While using the bulk loading method, the tool can accommodate up to 16 oz. of grease.

It is equipped with an air vent, that helps release trapped air pockets from the tube.  It produces an output pressure of 1,200/6,000 PSI at the nozzle, forcing the grease to penetrate into the more stubborn fittings.

The unit has a 1/4-inch threaded air inlet, which should be connected to a compressed air source at 30 to 150 PSI. 

Ampro A3710 Air Grease Gun
  • Lubrication for automotive and industrial work
  • 3-Way grease loading: cartridge, filler pump and bulk
  • Air vent Valve releases trapped air pockets

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • Supports a 3-way grease loading mechanism, cartridge, bulk or using a filler pump
  • Powerful enough for all automotive and some industrial greasing applications
  • Fitted with an air vent to remove trapped air in the grease for improved saturation efficiency
  • Produces up to 6000 psi of pressure at the outlet nozzle

Possible Drawbacks 

The grease gun does not purge air out of the grease chamber effectively. The quick-connect nipple that comes with the gun may also malfunction with time. 

5.LockNLube Dual-Shot Air-Operated Grease Gun – The Best High-End Pneumatic Grease Gun 

The LockNLube Pneumatic grease gun offers both single-shot and continuous delivery modes in one grease gun. This ensures that you do not blow out a deal while trying to achieve a specific bearing pressure. 

To switch between the automatic and single-shot modes, you only need to twist the delivery knob back and forth.

The Lever Grip Grease Gun comes with a 30-inch high-quality hose. This is longer than what some of the leading grease gun models are offering. 

It is also fitted with an in-line hose swivel to avoid awkward twisting.

LockNLube Dual-Shot Pneumatic Grease Gun
  • First pneumatic grease gun with both single-shot and continuous modes.
  • Delivers up to 6,000 PSI in single-shot mode and 5 oz. per minute in continuous mode.
  • Includes the LockNLube Grease Coupler

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • Delivers 2,500 psi on the single-shot mode and up to 6,000 psi for continuous operation
  • Allows you to choose between continuous and single-shot grease application  modes
  • Comes with a LockNLube Grease Coupler
  • Features Loop and Lock Storage technology
  • Support both bulk and cartridge loading methods

Possible Drawbacks 

The grease gun is relatively heavy and hard to control. Using it for extended periods will cause fatigue 

6.BestEquip Portable 20L

This may not be the most portable air-operated grease gun, but is definitely one of the most powerful units you can get for heavy-duty applications. Owing to its power and precision, the unit is suited for use in equipment, machine tools, and ship lubrication. 

The unit should be connected to a source of pressurized air at 80 to 110 psi to deliver between 3,300 and 5,800 PSI at the output nozzle.

The product is sold as a kit, comprising of a grease pump, gas-pressure meter, 20ft high-pressure hydraulic hose, and a Pneumatic gun. 

The pump is made is a zinc alloy and is chrome coated for enhanced durability in the most demanding environments. With such a unit, you can comfortably pump out grease to the desired points at the rate of 0.85L per minute. 

BestEquip Portable 20L Grease Pump Set Electric 5 Gallon Air...
  • 【AIR OPERATED GREASE PUMP】 - Capacity: 20 liters (5 gals). Air Pressure: 0.6 - 0.8 MPA. Pressure Ratio: 50:1. Grease Output: 0.75L/Min. The grease pump with high working pressure can inject oil into your vehicle quickly. And the pressure gauge with precise scales shows real-time conditions.
  • 【LARGE CAPACITY STORAGE】 - The main advantages of sturdy material are reflected in high hardness, sturdiness. The large capacity of 20L allows you to put your oil drum directly into the machine. Without having to pour oil multiple times, saving time and energy. And The grease pump is made of chromium-vanadium steel and cast iron to make it more stable.
  • 【360° GUN HEAD & FOLLOW PLATE】 - Rotatable gun head in the grease pump can rotate arbitrarily in multiple directions that meet different orientations' needs without restrictions. A standard metal follower plate is strongly adsorbed and fits the barrel body without air intake and oil leakage, and has strong sealing performance, making it easier to discharge oil.

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • Offers a 5-gallon grease capacity and an output of 0.85L/min
  • Features strong construction to withstand the high pressure and improve its durability
  • Fitted with a gasket, rendering the pump rustproof, leak-proof and spill-proof
  • Delivers grease at a rather high pressure to penetrate clogged or frozen fittings

Possible Drawbacks 

The pump is comparatively large and occupies a relatively large amount of floor space. It may not be the right choice if you have limited space. 

7.DEWALT 20V MAX Cordless Grease Gun – The Most Portable Cordless Grease Gun 

The DeWalt 20V Max cordless grease gun couples the power of a Pneumatic to the convenience and portability of a cordless gun. The result is a powerful grease gun that can pump up to 16 cartridges worth of grease per charge.

Unlike the other guns reviewed above, the DeWalt 20V Max does not require an air compressor, yet is renowned for its exceptionally high output pressure.

With the variable speed trigger, you will get precise control into the output amount and pressure (up to 10,000psi).

It is fitted with a bright LED light, helping you locate the hard-to-find grease fittings, especially in low-light situations. The unit features an innovative pump filter screen that helps prevent dirt and contamination that may clog the pump mechanism.

DEWALT 20V MAX Cordless Grease Gun (DCGG571M1)
  • DEWALT grease gun can power through clogged grease fittings with a motor that delivers up to 10,000 max PSI
  • High-volume pump of the battery grease gun pushes up to 5.0 oz/min high-flow applications.
  • DEWALT 20V grease gun kit can control grease flow with the variable speed trigger

Last update on 2021-12-03 / Affiliate links / Images from Amazon Product Advertising API

Pros

  • Powerful grease output at 10,000psi and at a rate of 5.0 oz. per minute to penetrate through clogged fittings
  • Allows you to regulate grease flow with a conveniently positioned variable speed trigger
  • Comes with a 42-inch flexible hose to help reach various fittings
  • Features an integrated no-mar foot design, allowing you to rest the tool on almost any flat surface
  • Fitted with an air bleeder valve to assist in pump priming after cartridge changes

Possible Drawbacks 

The factory-installed coupler on this unit is almost impossible to remove. This brings about compatibility issues with some grease fittings.

Things You Need to Know Before Choosing a Pneumatic Grease Gun

Since grease Guns come in different types and sizes, it is important for you to get me that is suited for the intended application. For instance, you will need a larger, powerful Pneumatic Grease gun for industrial applications. 

For DIY lubrication applications, a smaller pistol, cordless of lever model may suffice. Ideally, you will require a gun that delivers just the right amount of grease to whatever part you are lubricating.

The best air-powered grease gun will prevent grease wastage, as well as save you time and money in the long run.

In addition to these, there are several other considerations you need to make while shopping for the right  grease gun, including:

Grease Gun Type

As you may have realized, there are different types of grease guns in the market. Each of there gun types has a unique set of features and capabilities to offer.

As such, you need to choose one that is best suited for the intended application. 

While shopping for the right unit, there are the four grease gun types you should consider:

Pistol-Grip Grease Guns

This is a type of grease gun in which the handle resembles a conventional pistol. The handle features an integrated trigger that you press in order to push grease out of the gun.

Owing to its design, a pistol grip grease gun allows for easy one-hand operation. 

However, pistol-grip grease guns have a less mechanical advantage and only develop a limited amount of pressure. As such, they may not be the right choice when you are looking for close-tolerance, metal-to-metal fit.

Pistol-grip grease guns are only suited for non-industrial, projects such as DIY automobile maintenance.

On average, the more powerful pistol-grip guns deliver about 500 psi of grease pressure with a comparatively lower output per stroke. 

Lever Grease Guns

As opposed to the pistol-grip guns, lever-operated grease guns have a mechanical advantage. This being the case, they are known to develop higher output pressure.

Although lever-operated grease guns tend to have a comparatively low-pressure output, they are known to have a higher output per stroke.

With such a great gun, the amount of grease that comes out will depend on how far you push the lever. Lever Grease guns are the commonest of all grease gun types.

They are suited for application that involves rather large clearances, such as greasing large bearings. 

For industrial applications, it is advisable to go for a lever-operated grease gun that has a higher output pressure, but lower volume per stroke. 

Lever Grease Guns 

Pneumatic Grease Guns 

Pneumatic grease guns are some of the most powerful and efficient grease guns you can buy today. They will complete each lubrication job faster and minimize the fatigue associated with the work.

Such units are powered by compressed air, making them more reliable, especially on industrial lubrication projects. The air pressure in such guns is highly regulated, Which results in fewer wear and tear on its parts and components.

The downside to these grease guns is that they are very noisy in operation; you may head to wear noise protection gear while using one. 

Provided you have a long air hose, you will find Pneumatic grease guns to be rather flexible and versatile. 

Cordless Grease Guns 

These are grease guns that run on rechargeable batteries. They are known to be convenient, intuitive, and highly portable.

Although these units are battery-powered, some of the leading models are quite powerful. The DeWalt 20v max grease gun, for instance, can produce up to 10,000 psi of pressure. 

Since you will not be operating any levers, you will find such a grease gun to be easier to use. It allows you to complete lubrication projects faster and more efficiently.

However, the runtime of such a model will depend on its battery performance. It may not be appropriate for use in applications that requires you to grease for long hours. 

Maximum Operating Pressure (PSI)

Regardless of the type, grease guns are designed to deliver a certain amount of pressure. A gun that delivers a high fluid pressure will never disappoint in any application.

You need to consider the pressure requirements of the tasks you will be using your gun for.

For instance, high pressure will be required to pump grease into clogged fittings, especially if you are using a heavy lubricant or during the cold weather. Be sure to choose a model that offers just a little more pressure than you actually need. 

Reloading Options 

You also need to consider how your preferred grease gun is refilled. Different guns support different grease reloading mechanisms, as elaborated below. 

Cartridge Loading 

A gun that uses this mechanism is refilled using packaged cartridges. Although this method is easier and more convenient, it is costlier as compared to the other loading options.

This method also has a negative impact on the environment when it comes to the disposal of empty cartridges.

Suction Loading

This type of loading mechanism requires that the gun be filled manually, often from a bulk drum.

To do this, you will need to open and insert the end of the gun into the grease in the bulk drum. You should then pull the lever to suck grease into the gun.

Such a gun is only suited for use with lighter grade grease types. Heavy grease types are difficult to load into such guns. As you can imagine, suction loading is leading and strenuous. 

Grease Guns 

Bulk Load 

This is the cleanest, easiest, and most affordable grease loading mechanism of the three. To refill your grease gun using this method, you will need bulk loader fittings, a bleeder valve, bulk loader couplers, and a bulk filler pimp. 

The grease gun loader fitting should be pressed into the loader coupler on the pump. After loading, the bleeder valve should be used to relieve the gun of any air that may have entered the whole reloading.

Using a follower plate will minimize air pockets in your bulk grease. 

Accessibility 

While shopping for a new grease gun, you need to ascertain what you will be using it for. Will the gun be used to pump grease in confined spaces or more open spaces?

In this regard, you need to worry about the accessibility, and clearance of the points of application.

The design of your preferred grease gun should feature a compatible coupler, depending on where you will be using the gun. The coupler should allow for easy access to the points you need to grease.

For enhanced flexibility of the gun, you may need to buy additional accessories to optimize it’s potential. 

Final Verdict

Pneumatic grease guns are some of the most powerful hardy tools in the industry.

As such, they are known to offer the utmost precision, consistent, and efficiency. They are commonly used in the more demanding greasing applications. 

You need to ensure that your preferred grease gun is easy to load, operate and is suited for the intended application. With this guide, you will have an easy time choosing the best air-operated grease gun.