What You Need to Know About Screw Compressors

Air compressors are available in different shapes and sizes. The main purpose of an air compressor is to utilise the energy in compressed air. There are different kinds of air compressors used today, primarily depending upon the application. Compressed air is used in a host of different industries. The function is simple: the compressor fills up a tank with air, which releases the potential energy within the air. The compressor automatically shuts off once the tank is full. The air can then be released in one of several different ways depending upon the purpose. The kinetic energy of the air can be used for performing different functions.

However, ordinary air compressors are difficult to maintain. You may have seen air compressors being used when you go to get your tires filled up with air. However, as well as being used in such instances, air compressors are also used in different industrial processes. Rotary screw compressors are ideally used in industries because they are easy to maintain as compared to ordinary compressors. Screw compressors in Sydney are generally made on demand. They are tailored depending upon the specifications of the client.

The Function

The rotary screw compressor utilises a rotary mechanism which generates positive displacement. They are ideally used instead of piston compressors when large amounts of pressurised air are required. They may be large in size and designed for industrial applications or might be tailored for use in jackhammers.

One of the biggest advantages of rotary compressors over piston compressors is that the compression process uses a continuous sweeping motion. Compared to piston compressors, there’s virtually no surging of flow or pulsation, which makes them considerably steadier than piston compressors.

The compressor has two helical meshing screws that are used for the gas compression process. The compressors are available in two variants: dry running and oil-flooded. In the former, timing gears are mainly used to make sure that the female and the male rotors remain properly aligned. On the other hand, the latter utilises a lubricating oil bridge to reduce the space between the rotors and create a hydraulic seal. However, in an oil-flooded compressor, a small amount of leakage is very likely to occur from time to time.


As mentioned above, the size of the rotary screw compressor generally varies. However, in most cases, these compressors are pretty compact and don’t cause a lot of vibration. As a result, they don’t need to be mounted on a vibration-isolating spring suspension.

It’s easy to see why rotary screw compressors are a common choice amongst factory owners. Because they require little maintenance and can easily outperform conventional piston compressors, they have become the main choice in most industries. The prices of rotary screw compressors generally vary depending upon the size and the performance. Conventional screw compressors are also cheaper than piston compressors. If you want to avoid problems with your screw compressor, you should get it inspected at least once a year to minimise the risks of potential problems.