Rotary Screw Air Compressors Sydney – Sales, Installation & Service

rotary screw air compressor sales sydney

Sydney air compressor sales, repairs, installation & service

How do rotary screw air compressors work?

Rotary air compressors are positive displacement compressors. The most common rotary air compressor is the single stage helical or spiral lobe oil flooded screw air compressor. These compressors consist of two rotors within a casing where the rotors compress the air internally. There are no valves. These units are basically oil cooled (with air cooled or water cooled oil coolers) where the oil seals the internal clearances.

Since the cooling takes place right inside the compressor, the working parts never experience extreme operating temperatures. The rotary compressor, therefore, is a continuous duty, air cooled or water cooled compressor package.

Rotary screw air compressors are easy to maintain and operate. Capacity control for these compressors is accomplished by variable speed and variable compressor displacement. For the latter control technique, a slide valve is positioned in the casing. As the compressor capacity is reduced, the slide valve opens, bypassing a portion of the compressed air back to the suction. Advantages of the rotary screw compressor include smooth, pulse-free air output in a compact size with high output volume over a long life.

The oil free rotary screw air compressor utilises specially designed air ends to compress air without oil in the compression chamber yielding true oil free air. Oil free rotary screw air compressors are available air cooled and water cooled and provide the same flexibility as oil flooded rotaries when oil free air is required.

Other types of air compressors

We are the Sydney air compressor specialists

air compressor equipment sales

Rotary screw air compressor sales

Buying a new air compressor? Do you really understand the compressed air requirements of your plant? Do you know how much air your equipment consumes and at what pressure? Are you aware that the single biggest cost associated with owning and operating an air compressor system will be the electricity costs required to run it?

Over a typical 10 year air compressor life cycle, the cost of energy will account for around 75%-80% of total costs, dwarfing the initial costs associated with equipment purchase, installation and maintenance.

Independent air compressor sales advice

Before you contact the usual air compressor dealers, consider getting your current or proposed new system properly appraised, so that you can be sure you are buying what you actually need as opposed to what you are being sold.

At Compressed Air Technology, we make the effort to actually measure and monitor your system BEFORE you proceed with a high value purchase, ensuring the lifetime ownership costs are kept to a minimum.

As an independent operator, not tied to any particular brand, we have access to a huge range of premium quality equipment that is selected to ensure compressed air is supplied to your plant at the correct volume, pressure and quality, with a heavy focus on reliability.

We also supply a range of piping systems including aluminium, copper, stainless steel, HDPE and many more

Contact us for an obligation free compressed air system assessment on 1300 663 113

compressed air system design

Rotary screw air compressor system design

Too often we see the wrong compressors installed for the application.  A great deal on a larger compressor may look appealing initially, but seldom does anyone point out the additional electrical costs incurred to run it over the ten or so years it will be in operation.

Our approach tends to differ from that of a traditional compressor dealer, we believe in spending time with our clients to get to know the true compressed air requirements so that the correct equipment can be evaluated and selected accordingly.

We take a similar approach to designing your piping and distribution systems. Remember, a compressed air system is only as efficient as its installation. We often hear clients complain they are ‘running out of air’, when the fact is their compressors are perfectly cable of supplying their processes, but restrictions in piping and poor design are leading to pressure drop and subsequent equipment malfunction.

More information about air compressor design »

commercial air compressor installation

Rotary screw air compressor system installation

A compressed air system is only as effective as the installation allows it to be. A properly installed compressed air system will deliver a return on investment time after time. Understanding compressed air and its unique characteristics is the key to our success.

Our team of dedicated compressed air installers are true industry specialists. Installing compressed air systems on a daily basis ensures we are kept up to speed with the latest advancement in technologies.

More information about air compressor installation »

compressed air system efficiency audit

Rotary screw air compressor efficiency audits

Have you considered how much your compressed air system costs to run? Many business owners haven’t and it’s a common misconception that compressed air is free.  It’s only air, right? Wrong!

Compressed air is expensive!

Did you know that compressed air is one of the most expensive forms of energy used in industry today?

Often termed the ‘Fourth Utility’, compressed air is just as important to some businesses as electricity, water or gas. It is also very expensive to produce when you consider it takes approximately 7hp of electrical power to produce just 1hp of compressed air power…

10-15% of all industrial electricity is used to general compressed air.

More information about air compressor efficiency audits »

compressed air system monitoring audit

Reciprocating air compressor repairs and leak detection

Did you know that most compressed air systems have leaks? Studies show that system leaks typically account for between 20-50% of compressor output, potentially wasting thousands of dollars every year. Most leaks are quick and easy to fix. Ask us how…

At Compressed Air Technology we offer a range a leakage detection and repair programs to suit all businesses and budgets. Our state of the art Ultra Sonic Leak Detectors and factory trained technicians are used to detect system leaks, and repairs can often be carried out on the spot, generating instant savings.

More information about air compressor repairs and leak detection »

Contact us for all your compressed air system requirements including sales, installation and service on 1300 663 113


We are Sydney’s leading compressed air specialists

Compressed Air Technology are specialist consultants and contractors for the compressed air industry. Working with industrial compressed air operators to maximise efficiency, reliability and productivity. We design, supply, install, monitor and certify compressed air systems for a wide range of industries Australia wide.

Our independence is the key to our success

Huge increases in the cost of energy has seen the company start to focus on energy management. We are now regularly called upon in a consulting capacity to design compressed air systems that are efficient as well as reliable and safe. Our independence is key to our success, we are not encumbered by the constraints of a typical compressor dealer, we design each system with an open mind and scour the market for equipment that best suits our clients needs.

Helpful links : Compressed air system design | New air compressor installations | Compressed air system sales

We use specialist compressed air equipment

The company has invested heavily in specialist instrumentation equipment and the training of personnel to operate and understand measurement and monitoring methods for compressed air and gas systems. Our whole approach sets Compressed Air Technology apart from the crowd, we believe in what we do, are passionate about compressed air and strive to build long lasting, mutually beneficial relationships with a wide range of clients across a variety of sectors.

Helpful links : Air compressor services | Compressed air evaluation & audits | Compressed air leak detection | Compressed air quality testing

For air compressor advice call 1300 663 113.