Your browser is not supported

You are using a browser we do not support any longer. To continue visiting our website, please choose one of the following supported browsers.

Our global presence

Please select a business area and your country and language.


How Rotary Screw Air Compressors Work

Find Out Everything You Need To Know About the Rotary Screw Air Compressor

Air Compressors

To understand rotary screw air compressors, it is important to first have an understand there are many types of air compressors. Air compressors are often used in a wide range of applications including manufacturing, industrial, construction, food and beverage and more. Most of the time, a screw compressor will be the right tool for construction crews, manufacturers and shops.

Rotary Screw Air Compressors

The screw air compressors is the most common amongst the air compressors. These machines will continue to work in most applications which utilise compressors. They are effective, quiet and most importantly powerful. Utilising the right screw compressor can create a more productive and efficient business. The right screw compressor can also improve the work environment within your team.

Compressor de parafuso CPN 15-20

How does a rotary screw air compressor work?

A rotary screw air compressor will respond to demand and works on suction. When the screw compressor is started up, it will turn on and build up pressure to the demand of the facility or your set point. The compressor will then turn itself off and wait. When the pressure drops off, the screw compressor turns itself back on to build the pressure back up. This is one of the benefits of running a screw air compressor, as it will keep up with the demand. The screw compressor also does not waste energy and create unnecessary noise.

For example: The screw compressor may not cycle as much in mornings, as the employees of a facility are not using tools. However, once the demand becomes higher in the afternoon, the screw compressor may turn on and remain running for the rest of the day. The screw compressor will respond to your working needs by keeping up with demand.

How powerful are rotary screw air compressors?

The amount of power which comes from your rotary screw air compressor will depend on the size of the screw compressor. There are many options and sizes available, including the variable speed drive and fixed speed drive. The screw compressor you choose will depend on the size of your facility and demand.

When is a screw compressor the best option? What other options are there?

There are two different types of compressors available here at Chicago Pneumatic. We have the piston compressors, and the screw compressors.

A screw compressors can be a better option for your CFM requirements. A screw compressor comes with additional benefits including more efficiency, quieter, and cleaner. The slight cost with these benefits is well worth the return you will recieve.

When a piston compressor turns on, it runs full bore and once the demand is met, will turn off. A screw compressor is smarter as it can turn on and run slowly if there is not much demand, and can increase its output as demand requires.

What should I look for when buying a rotary screw air compressor?

It is important when purchasing a compressor, to speak to someone with knowledge about your application and needs.

  • A compressor which is too small will struggle to keep up with demand.
  • A compressor which is too large won't cycle as much as it needs to. Compressors like to be run. If a compressor isn't cycling as much as it needs to, you could experience condensate build up in the oil and many other issues.
When exploring options, ask questions like:
  • How much air are you going to use?
  • Will you need a dryer?
  • What is the planned location of the compressor?
  • Do you have any plans of growing the business?
Have a look at the warranty and the serviceability of the air compressor. 
  • Is the company going to be there to support any questions or issues you may have?
  • How will you service and maintain the machine?
Chicago Pneumatic CPVS60 PM

What can I do to maximise the performance and longevity of my compressor?

Maintenance is the key factor to continue the performance of your air compressor. You may want to also make sure the compressor is in a good and clean environment. Although compressors do like heat, the environment can't be too hot. Confined spaces must have ventilation. In some cases, HVAC needs to be ducted into the mechanical room, where the compressor is sitting. This is to ensure the compressor does not overheat. Filters and coolers must be kept clean, and it is important to check the air compressor regularly and follow the instructions in the manual. Stay on top of everything from draining the moisture and servicing the machine accordingly. Anything neglected on the air compressor will end up requiring more maintenance in the future, so observe regular maintenance intervals and follow some maintenance tips

Getting the right size compressor for the application is also important. If your compressor is under-sized, it's going to run more, and the demand will be harder on the equipment. Getting the right piece of equipment from the start is important. 

What do I need to do to maintain my air compressor?

Plan on servicing your rotary screw air compressor once a year. However, servicing needs for compressors can vary based on a list of factors. Your compressor may need servicing at 2,000 hours of usage or it may not need servicing until 4,000 hours. The service may also vary from a simple filter change to a complete filter change. Our sales team will help you determine which compressor is best for your production, the needed oil type and the most appropriate service schedule. If you have any questions along the way, we are your resource to answering these questions. You can also connect with one of our authorised distributors located around the country,

See also


CP Air Compressors Australia

Chicago Pneumatic Compressors


Chicago Pneumatic Movie


How Can CP Help Your Business?