Working with pneumatic tools like an air impact wrench without the right air compressor significantly decreases working efficiency. Even sometimes, the tool wouldn’t run at all.
That’s why you need the best air compressor for impact wrench to do your jobs with convenience.
After doing extensive research for 4 days, we have tried to shortlist the best 6 picks in this field. Apart from the features and benefits, we also considered the experience of a lot of users, their complaints and praises about a particular product. Finally, we placed the best possible products on our list.
We have also added a buying guide so that you can choose the unit that meets your demands.
What Size Air Compressor Do I Need for Impact Wrench?
The size of an air compressor for an impact wrench largely depends on your requirements. Normally a compressor with a 5-gallon tank is more than enough for a pneumatic impact wrench. Even a 5-gallon tank can be used for medium-duty tasks on the condition that the compressor motor is powerful enough (3.0 HP).
Most of the portable air compressors contain a 6-gallon air tank with around 2 HP motos that are commonly recommended for air impact wrenches.
You can also consider a unit with a 10-gallon capacity if you have to manage a bulk of works regularly.
CFM Chart: Impact Wrench Air Consumption
|Air Impact Wrench Size||Air Consumption(CFM)||Required PSI|
|1-inch impact wrench||10-16||90-125|
|½-inch impact wrench||5||90-1`00|
|¾-inch impact wrench||7||90-100|
|⅜-inch impact wrench||3||90|
|¼-inch impact wrench||2||90|
6 Best Air Compressor for Impact Wrenches 2022
Whether you’re a DIY enthusiast or a service provider, we hope you’d find the right product from our list that will serve your purposes.
1. California Air Tools Powerful Air Compressor
This quietest unit on the list is capable to generate high airflow. It also has a larger tank that is made out of robust material. You can do all sorts of small, medium, and some larger tasks as it can deliver sufficient air volume, which makes it the best compressor for impact wrench.
When it comes to a unit like an air compressor, noise is a serious issue. Not only you but also the neighboring people may get annoyed by its extreme sound. California silent air compressor produces only 70 decibels that will ensure you a less noisy working environment.
The compressor unit can deliver 5.3 CFM of air @ 90 PSI which is more than enough to run an air impact wrench efficiently.
A 10-gallon air tank coming with this unit will store more air ensuring high airflow for a long time. So you don’t need to take breaks frequently to recover while doing your job.
Moreover, the tank is made of steel that prevents air leakage. That’s why no worries about losing air pressure unexpectedly.
2. PORTER-CABLE Air Compressor
Although it’s smaller in size, it doesn’t compromise the basics you would expect from a pneumatic compressor. Besides the two couplers and a powerful motor, the impact wrench also possesses an air regulator and a valve for water drainage.
The air compressor contains two factory-installed couplers allowing you to use two pneumatic tools at the same time. So, you will get double efficiency with a single set! You don’t need to spend money to get another one.
Its low amp 120-volt motor is powerful enough to start even in extremely cold temperatures.
You don’t need high air pressure for lighter tasks. On the other hand, sometimes, you need to apply high torque. The unit has a built-in air regulator that will help you to use it for different types of jobs.
At the bottom of the design, there is a valve that facilitates water drainage after using it every time. So there is no chance of rusting inside the set.
Though the set doesn’t contain wheels like the previously reviewed one, it’s very light in weight, making it the best portable air compressor in its class.
3. BOSTITCH Pancake Air Compressor
If you’re looking for an air compressor that needs no maintenance but still can provide adequate air, you can consider this pick. Also, it’s able to supply enough air pressure to operate your air tools for home tasks. If you solely need a unit for home use, this can be the best air compressor for home garage for the price.
The unit has a 6-gallon tank that will store adequate air for long-term works. It can generate 2.6 CFM of airflow @ 90 PSI that ensures enough airflow to run your air impact wrench. You can maximize the PSI up to 150 units when you need more air pressure for larger tasks.
When the pressure is below the threshold level inside the tank, it recovers very quickly. You don’t need to wait a long time to refill it.
If you have already used an oil-based air compressor, you have the experience of facing hassle for its maintenance. Moreover, you have to spend some bucks regularly buying oil.
BOSTITCH air compressor is totally oil-free, doesn’t need any maintenance. This feature assures you the experience of convenient use with saving some money.
Though it produces a bit higher decibels which is 78.5db, it’s still safe enough for human ears.
4. Metabo HPT Pancake Air Compressor
If your pneumatic wrenches require a relatively higher pressure and airflow, then this heavy-duty air compressor from Metabo can be the right pick to meet the ratings.
Despite all the premium features, it’s very lightweight. So, if you are looking for the best portable air compressor for impact wrench, your search ends here.
What’s the main function of an air compressor? Supplying adequate air volume at an optimum air pressure-volume, Right? The greater the air volume and pressure, the impact wrench will deliver more torque power.
The unit is capable of delivering 4 CFM of air pressure at 90 psi which is at least 30% more than light-duty ones. This feature will not only facilitate proper airflow to the air tool but also ensure quick recovery of the tank.
Metabo air compressor can create a maximum of 200 PSI which is much more than the conventional air compressors. You will be able to run multiple air tools with such a PSI rating.
Durability is a matter of concern when you’re using the compressor in job sites. The handles of this product are made out of a durable metal substance that ensures more stability even when it faces frequent movement.
5. CRAFTSMAN Air Compressor
If you’re new to use an air compressor in your home or small garage, this easy-to-use air compressor for impact gun may be the perfect unit you’re looking for. Although it’s the most affordable air compressor on our list, you wouldn’t miss any basic facilities.
You don’t need to be an expert to handle the machine as it’s super simple to set up and operate.
Of course, it will provide enough air to run your impact gun. Moreover, its 2.6 CFM @ 90 PSI would be capable of running other light-duty air tools like staplers, nailers, etc.
CRAFTSMAN air compressor is also totally oil-free. So like the oiled machines, you wouldn’t face much hassle for its maintenance. And also, you don’t need to spend money regularly to keep it workable.
The motor requires only 120 volts that will not add much to your electricity bill. With the 6-gallon air tank, you’d get a continuous air supply for your work.
So literally, you’re offered great service from a cheap air compressor for impact wrench.
6. Makita MAC5200 Big Bore 3.0 HP Air Compressor
It’s the most powerful air compressor on the list. When commercial use, tons of work management, shelf life are your prime concerns, you must try this compressor. Apart from using an impact wrench for automotive works like a spray paint job, you won’t regret buying this one.
The unit is capable of producing 6.5 CFM air @ 90 psi which will provide you more than 25% better working efficiency than the conventional oil-free pneumatic compressors.
You can use this unit where comparatively higher airflow is required for heavier jobs. For its high air flowing and PSI rating, it stands out to be the best air compressor for automotive air tools on the list.
Don’t think that the 5.2-gallon tank will not be able to provide airflow continuously for your projects. Because the strong 3.0 HP motor would make you feel comfortable as it will refill the tank very quickly.
For its high functionality, the machine should have a risk of getting damaged inside soon. But the oil lubrication has made it highly friction tolerable. No matter how much the workload it has to endure, it wouldn’t wear and tear.
The manufacturer used specially engineered cast iron to make this machine which is highly resistant to tough job conditions. So you can rely on its durability.
You might be worried about its maintenance as the air pump needs oil replacement regularly, right? No worries, the parts of the machine are easily removable, which makes your maintenance task very easy.
Due to its thermal overload protection system, long-term use will not cause any harm to the motor.
What to Look for Before Buying an Air Compressor for Impact Wrench?
To pick the best air compressor for impact wrench, you should consider the following features.
This is the most important thing you have to keep in mind while buying an air compressor. It’s a unit referring to the amount of air supplied by the machine to the impact wrench. This means how many cubic feet of air is passed in a minute.
You can’t expect the maximum efficiency of your tool unless the air compressor is capable of providing the sufficient CFM that your impact wrench requires.
CFM requirements vary from tool to tool. So consider the size of your air impact wrench, know its CFM rating (see the chart above), and buy a compatible pneumatic compressor that meets the requirements well.
The tank stores pressurized air and deliver it to the air tool when necessary. An air compressor with at least a 5-gallon tank with a strong motor would be good enough for your impact wrench. Most often, a 6-gallon air tank serves the impact wrenches very well.
However, if you’re a professional who needs a more steady air supply, you can consider a unit with a 10-gallon tank.
If you’re buying only for home use, small or medium tasks, short-term use, lower capacity wouldn’t be a problem.
Weight and Portability
On the condition that you need to carry the air compressor somewhere else from your workplaces, consider the weight of the unit you’re intending to buy.
You’ll find many lightweight, portable air compressors even without compromising any convenience. Especially, if you do use compressors in construction sites, where they are used here and there, you must look for easily portable ones.
When you want to use it for multiple tasks in various places, buy the lightweight ones.
However, if your projects require a high-spec compressor unit, you will have to compromise the portability factor. Heavy-duty ones aren’t that portable. So, better use for where you don’t need to move the unit frequently.
It’s is another important issue you have to keep in mind. Especially if you intend to install it in a busy or residential area, the higher sound will create troubles for people nearby.
And also, you yourself may get annoyed by the harsh sound produced by many machines. If this is the concern, buy a compressor that produces at best 75 decibels.
Oil vs Oil-less Air Compressor
This is where beginners get confused. Both have their benefits under different circumstances. You need to determine your needs, and then opt for one that serves the best.
As the name indicates, oil is used as a lubricant in the pump of the oil-based compressor. If you need the best air compressor for impact wrench in terms of maximum power output, an oil-based one is all you would need.
These compressors are made focusing on industrial needs where you have to manage a bulk of workloads. Oil makes the pump able to withstand high friction.
Also due to high functionality, the staff produces a great amount of heat. The oil acts as a transfer medium of heat, making the machine safer.
But remember, oil compressors are heavyweight, and you can’t expect easy portability.
These are lighter and easily portable air compressors mostly suitable for home use – Specially designed for small and medium tasks. You can also use many of them in your garage.
Although oil isn’t used, there is a Teflon coat over the pump, which protects it from wear and tear. Oil-less compressors are mostly suitable for remote use, making them worth considering for serving non-commercial and household purposes.
Hope now you would be able to choose the best air compressor for impact wrench easily from the list above considering the right CFM and PSI rating. If you are buying the unit for commercial purposes, be sure to get one bigger tank capacity.
Last update on 2022-01-08 / Affiliate links / Images from Amazon Product Advertising API