Published: 10/09/2025
How Does an Air Compressor Work?
An air compressor converts air into energy. But, how do air compressors work, you may be wondering?
Quite simply, the air is drawn into the tank of the compressor, which is compressed, and then released as a power source. Typically, these machines are used across industries such as healthcare and pharmaceuticals, through to the food and beverage industry.
Step by step: The air compressor working principle
Here’s a four-step guide on how an air compressor works:
- Air ingestion: Firstly, air is drawn from the environment into the intake valve.
- Compression: The air is forced into a compression chamber, which creates high pressure.
- Storage: The pressurised air is stored in a tank reservoir, which creates a continuous supply when required.
- Release: The stored energy is released through valves to power tools or other machinery.
Different types of air compressors
When searching for air compressors in Manchester, you’ll come across many different compressor types. Some of the most common machines include:
Rotary screw compressors
Rotary screw compressors use two spiralling rotors that rotate at high speed in opposite directions. As the rotors spin, the air is trapped within them and compressed. However, this repetitive action generates heat. A cooling liquid is injected to keep the operational temperature at approximately 80 degrees Celsius.
Piston compressors
Piston compressors are one of the oldest types of air compressors on the market. It operates by a piston moving vertically within the cylinder to draw in and compress the air. When searching for air compressors in Manchester, you’ll discover piston compressors in two designs: single-stage and two-stage. The single stage can handle basic tasks such as inflating tyres, while the two-stage is best for heavy industry.
Turbo compressors
Turbo models use an impeller rotating at up to 30,000 rpm to accelerate air and increase its pressure. Two stages of compression are used: the first turbine compresses the air to a lower pressure, before feeding it into a second turbine, where it is further compressed to the required higher pressure. Plus, they’re one of the best oil-free compressors for a purer air supply.
Scroll compressors
Scroll compressors feature two interlocking spiral-shaped scrolls: one remains stationary while the other revolves around it. As the moving scroll circles, air is drawn into pockets between the scrolls and gradually compressed as it moves toward the centre. The result? A stable flow of compressed air. Much the same as the turbo design, this type of air compressor can also operate completely oil-free.
Invest in an air compressor today!
If you’re on the lookout for an air compressor, then you’ve come to the right place, here at Air Supply Manchester.
For over 25 years, we have been providing high-quality air compressors to customers and dealers across the UK. With us, you’ll discover a wide selection of BOGE compressors, available for both sale and hire.
Any questions? Get in touch – we’d be happy to help!