How To Increase CFM On Air Compressor?

An air compressor is an important tool for painting a substance. It is a modern technology that allows you to paint anything with air pressure. It is extensively used for painting cars, large buildings, boats, etc. The performance of an air compressor is often measured by its CFM of airflow. It is the value of the maximum air pressure a compressor can produce. Generally, a particular air compressor comes with a CFM limit. However, you increase and decrease a compressor’s CFM rate. It is good if you want to enhance your productivity.

This blog is dedicated to discussing increasing the CFM of an air compressor.

What does it mean by the CFM of a compressor? 

CFM of a compressor

CFM stands for cubic feet per minute. It is the unit of measurement used to express the airflow rate of an air compressor. If we say specifically, CFM measures how much air the compressor can deliver per minute. The CFM rating of a compressor is an important specification to consider when selecting a compressor for a particular application. It is important to choose a compressor with a CFM rating sufficient to meet the demands of the tools or equipment that you will use in the compressed air.

For example, if you are using a compressor to paint a car, it requires a 20 CFM rating compressor. Otherwise, painting the vehicle would be difficult. If the compressor’s CFM rating exceeds the requirement, you can not paint the car properly, and the compressor may have to work harder. It can wear out faster.

Therefore, understanding the CFM rating of a compressor is essential for selecting the right compressor for the job and ensuring that it operates effectively and efficiently.

Why should you increase the CFM of an air compressor?

As said earlier, CFM (Cubic Feet per Minute) measures the volume of air a compressor can deliver. Increasing the CFM of a compressor can be beneficial in several ways, depending on the specific application.

Here are some reasons why increasing the CFM of a compressor might be beneficial:

Increased productivity

If you’re using an air compressor for a task requiring a certain amount of airflow, increasing the CFM can help you complete the job more quickly, increasing your productivity. It means if you are using it for painting a car, you can promptly paint it.

Increased efficiency

A compressor rated for a higher CFM can deliver the same amount of air at a lower pressure. It can help you to reduce energy consumption and increase efficiency.

Increased versatility

A compressor with a higher CFM rating can be used for a wider range of tasks, as it can deliver more air for larger tools and equipment.

Reduced wear and tear

If you’re using an underpowered compressor for the task at hand, it may have to work harder and for longer periods. It can cause increased wear and tear. It means your air compressor can wear out fast. Increasing the CFM can reduce the strain on the compressor and extend its lifespan.

However, it’s worth noting that there may be other factors to consider when determining the optimal CFM for a specific application, such as the pressure requirements and the particular tools or equipment being used. It’s important to consult the manufacturer’s recommendations and seek professional advice if you need help with the best approach.

How can you increase the CFM of an air compressor?

Increasing the CFM of an air compressor is beneficial if you want to increase the speed of your work. However, you have to do it very carefully while improving it. Also, increasing the CFM of an air compressor involves several factors that need to be considered. Some of the elements are:

  • The air compressor is in good condition.
  • Its battery and other parts are not damaged.
  • Make sure you are using it at the ambient temperature.
  • You have all the required tools and guidelines to work with an air compressor.
  • You can operate the air compressor properly. 

However, here are some ways to increase CFM on an air compressor:

Increase the motor horsepower 

One of the effective ways to increase the CFM of an air compressor is by increasing its motor horsepower. The motor horsepower is directly proportional to the CFM output. The higher the horsepower, the more air the compressor can produce. You can replace the motor’s battery with a higher one to increase horsepower.

Increase the size of the air compressor

Another way of increasing CFM is through increasing the size of the compressor. A larger air compressor will have a larger tank and pump, which will ensure to produce more air. You can do it in two ways. One is replacing the total air compressor, and the other by changing the tank and battery. 

Reduce the pressure drop

If you can reduce the pressure drop of your air compressor, you can increase its CFM. Pressure drop is the loss of pressure that occurs as the air flows through the hoses and fittings. While using the air compressor, be careful of the loss of hose and fitting. Notice carefully. If the fittings and hoss are not up to the mark, change them immediately.

Use a larger diameter air hose

A larger diameter air hose can reduce the pressure drop and increase the amount of air that the compressor produces. Replace your air compressor’s stocking with a larger one. 

Adjust the regulator

Lastly, you can adjust the compressor’s regulator while using it. The regulator controls the pressure of the air delivered by the compressor. Changing the regulator can increase the amount of air that the compressor produces.


Increasing the CFM of an air compressor can be effective for you to complete your work faster. However, it is important to note that increasing the CFM of an air compressor beyond its rated capacity can cause damage to the compressor and may void the warranty. Therefore, it is recommended to consult the manufacturer or a professional before attempting to increase the CFM output of an air compressor. You may also read: How to Fill HPA Tank with an Air Compressor?

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Samuel H. Murphy is DIY expert and Interior Designer. He is also a part time content writer of Capische. He lives in Warren city, Michigan. He test tools like drill, saw, sander, air compressor etc and helps readers to find out the best tools.

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