Air Compressor is a useful device for many handy and compact tools like drills, impact wrenches, sanders and so on. It is widely used in garages, factories, and even houses.

The reason why it is so powerful lies in its capability of turning electrical energy into kinetic energy. Therefore, the air compressor plays an important role in operating all the tools above, especially the impact wrench.

When you have already chosen the impact wrench you need, it’s high time for you to consider choosing the right size air compressor to make sure that your impact wrench will run smoothly.

However, it is not easy to make the right choice as there are many types of air compressors available. There are lots of important things you need to take into consideration before picking up one for the best quality product. This article will tell you all!

Top 10 Best Size Air Compressor For Impact Wrench

Bestseller No. 1
Craftsman Air Compressor, 6 Gallon, Pancake, Oil-Free with 13 Piece Accessory Kit (CMEC6150K)
Craftsman Air Compressor, 6 Gallon, Pancake, Oil-Free with 13 Piece Accessory Kit (CMEC6150K)
PRESSURE: 150 Max PSI to ensure adequate cut-inch pressure for a variety of applications; QUICK RECOVERY TIME: 2.6 SCFM at 90 PSI allows for quick compressor recovery time
SaleBestseller No. 2
BOSTITCH Air Compressor Kit, Oil-Free, 6 Gallon, 150 PSI (BTFP02012-WPK)
BOSTITCH Air Compressor Kit, Oil-Free, 6 Gallon, 150 PSI (BTFP02012-WPK)
LIGHTWEIGHT: 29 lb. weight and narrow tank diameter make unit easy to carry/store.; HIGH FLOW REGULATOR AND DUAL COUPLERS: Maximizes air tool performance
Bestseller No. 8
DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126),Multi
DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126),Multi
78.5 dBA noise level of the 6 gallon air compressor is made for a quiet work environment; Long life oil free pump for maintenance free operation
SaleBestseller No. 9
EPAuto 12V DC Portable Air Compressor Pump, Digital Tire Inflator
EPAuto 12V DC Portable Air Compressor Pump, Digital Tire Inflator
Easy to Read: 4 Display Units: PSI, KPA, BAR, KG/CM; LED FLASHLIGHT: Bright Torch
SaleBestseller No. 10
CRAFTSMAN V20 Tire Inflator, Compact and Portable, Automatic Shut Off, Digital PSI Gauge, Bare Tool Only (CMCE520B)
CRAFTSMAN V20 Tire Inflator, Compact and Portable, Automatic Shut Off, Digital PSI Gauge, Bare Tool Only (CMCE520B)
EASY READ DISPLAY: Digital PSI gauge; 3 Year Limited Warranty, refer to "Warranty & Support" section below for full details

​Why Do We Need To Choose The Right Size Air Compressor For Impact Wrench?

Choose The Right Size Air Compressor For Impact Wrench​Whether you are a DIY mechanic, a mechanic or a weekend warrior, one of the most important things for your mission is to have a nice tool kit. And you also need to consider investing in high-quality tools or use your more conventional power tools.

There are some benefits when using top quality tools:

  • Able to reduce weight to minimize operational fatigue
  • Able to lessen the risk of electric shock or fire
  • Longer life span
  • Lower heat
  • More power

To work effectively with your impact wrench, you must have a suitable air compressor. If you want to get a perfect size, you should pay attention to the following information!

What Size Air Compressor For Impact Wrench

What Size Air Compressor For Impact WrenchBefore you buy an air compressor, it’s vital that you find out what your requirements are. Answer some basic questions below and you will find out

Question 1: What kind of projects will I do?

Frequent maintenance tasks or larger construction projects? Car repair or house upgrade? Someone who put a warehouse in their backyard would obviously need something strong and sturdy in order to withstand the size.

Question 2: What kind of air tools would I use?

If you have some tools that need continuous air such as sandblasting equipment, you should provide them with the air compressor with more airflow and bigger tanks.For operating a brad nailer or something like this, just the small compressor can do it well.

Question 3: What kind of energy sources are available?

Most compressors can plug into standard household sockets, but some larger compressors need 240-volt power. Another one is powered by gasoline when a power outlet is simply not available.

Question 4: How much space do I have?

You will need a lot of space if you want to pick up the air compressor with big tanks. Therefore, it is necessary to look for the one that fits the available space in your house.It is recommended to use a pancake 6-gallon air compressor as it fits well with almost every garage.

Question 5: Where will I use it?

If most of your projects will be done in one place (such as a garage or a factory), you will need to pay attention to the design of the compressor.However, if you plan to move your tools regularly, you will want to find a lightweight and easy to carry compressor or have wheels to move better.

Ask yourself these questions then you will have some ideas of what size air compressor you need.

There are 3 main factors you need to consider when choosing an air compressor. They are: The Type Of Airflow Needed, Tank Size Compressors and The Tank Style Of The Compressor

The Type Of Airflow Needed

The Type Of Airflow NeededIf you usually check for the specification of the air compressor, you will probably know the PSI( pounds per square inch) and the CFM( cubic feet per minute). These are the 2 main factors to determine the efficiency of the air compressor.

To choose the right compressor, it is important to know the PSI and CFM required.

  • For impact wrench 0,5- inch, the CFM is commonly not over 4.0 and PSI is 90
  • For impact wrench 0.75- inch, the CFM is usually 5.0 and PSI is 90

On the condition that you have a lot of wrenches but you use only one compressor, it is advisable to use the one that is able to surpass the PSI and CFM needs of your most powerful appliances to ensure the efficiency and good performance of your air compressor.

Tank Size Compressors

There is a storage tank in all air compressors that is capable of containing the necessary air. The amount of air your tank can store will show how your impact wrench works.

It’s highly advisable to use a bigger tank when you use many tools at a time because when you use a lot of tools at the same time, more air is needed so that the proficiency will increase significantly. In case you have few tools, it is fine to use a smaller tank.

To sum up, you have to pick up a tank that is able to power all the tools you use.

The Tank Style Of The Compressor

The Tank Style Of The CompressorThe tank style of the air compressor is for mobility as well as innovation design. However, it is important when it comes to the amount of available floor space, mobility, compressor size as well as applicability

When using an impact wrench, it is advisable for you to choose the most suitable compressors that can help you work easily in every place. There are many tank styles and sizes available, it is easy for you to choose the one that fits your impact wrench the most.

Because the size of the compressor is very important when using an impact wrench, ergonomic design is something that almost everyone fancy. There are small tanks that you can carry easily.

There are also some other popular tank types you can choose including pancake, hotdog, pontoon, vertical mobile, horizontal mobility, and wheelbarrow. Make sure you choose the one that fits your needs.

Other Factors

Other FactorsThere are also some other important factors that you need to consider when you want to buy an air compressor that goes well with your impact wrench


Products with a low cost usually bring about many annoying problems. For example, compressors that stand too much stress can be broken easily and fast.

Therefore, you should buy a reliable brand to ensure its product is built to last. Moreover, you can also save more money because you don’t need to pay for regular repair.


The capacity of the air compressor is also necessary to consider when choosing impact wrench, especially in tire and brake shops.

Although 4 or 5 gallons of air will allow you to pull one or two tires before recharging, when it comes to pulling everything you will want something in the order of 15 gallons or more.


We tend to use our impact wrench around garages or stores. Since there is only one limit line related to your tools, it is likely that you will have to reposition your compressor at least once.

For most people, unless you have a store, you’ll want something with a smaller capacity for easy movement.

It also means that wheels and handles are necessary to make sure you can get what you need.


The amount of money you are willing to spend on your compressor depends largely on how often you use the device. It is worth spending a few extra dollars if you use your compressor almost every day.

On the other hand, if you’re just a weekend warrior, you might want to save a bit and invest in a variety of tools.

Top 4 best air compressors for impact wrench

Eagle EA-5000 Silent Series 5000 Air Compressor

1. Eagle EA-5000 Air Compressor

The Eagle EA-5000 Silent Series is quite perfect to drive a collision air wrench ½. This special compressor also has high mobility, making it easy for you to control everything conveniently when you work.

Producing 5 CFM at 90PSI, this air compressor is more than enough for you to drive an impact wrench and allows you to tear or tighten hard bolts.

DEWALT D55146 Hand Carry Compressor

2. DEWALT Air Compressor

DeWalt, reputed to be one of the leading tool manufacturers, is favored by many people due to its D55146 compressor. This machine with 4.5 gallons can create enough air to perform any tasks, 5CFM at 90PSI and a large tank mean you can still pull bolts in a row.

Above all, it is easy to move around and the price is suitable for the average DIYer house. In addition, it produces only 78 dBa, which can run smoothly. For average home users, this may be the best air compressor for impact wrench.

Makita MAC5200

3. Makita MAC5200 Air Compressor

The Makita Lemon MAC5200 is what you are seeking when finding a suitable air compressor to push the driver like ¾. IT produces .5CFM at 90PSI, which makes it become one of the most powerful air compressors.

Above all, its durability is the best. Although it is rather heavy, it has the foldable handles and wheels so it is easier to store.

NorthStar 20-Gallon Air Compressor

4. NorthStar Air Compressor

Northstar Belt Drive Single-Stage Portable Air Compressor is the best product of this brand with an amazing 20hp, 20-gallon compressor.

Although it is a bit big for people working from home, larger stores and larger tanks will allow you to use your impact wrench easily without worrying about waiting for recharging.

5.0CFM at 90PSI with a large tank makes it perfect for those who are pulling and pushing bolts all day long with no rest. If you never want to worry about waiting for your compressor to recharge with an impact wrench, the investment here is quite small compared to the value you’ll get.

Final Thoughts

It’s all about how to choose the right size air compressor for your impact wrench.

After reading this article, you now know what to look for when buying an air compressor

Getting the right one will help you a lot in your work, make sure that you can pick up the one that fits your impact wrench the most!

Do you know any other good air compressors? Do you want to share your experience of choosing the right size air compressor? Let us know in the comment below