Oil Free Air Compressors
An oil free air compressor, also called an oilless compressor, uses no oil in the compression chamber, so the air it delivers cannot be contaminated by compressor oil. We supply, install and service oil free piston, scroll and screw air compressors across NSW, all certified to ISO 8573-1 (2010) Class 0, the highest air purity class.
Where oil free air is needed
Food and beverage, pharmaceutical, dental and medical, laboratories, electronics, textiles and breathing air: anywhere oil in the air would spoil product, damage a process or reach people.
Which oil free compressor do you need?
| Type | Range | Size | Best for |
|---|---|---|---|
| Oil free piston | CleanAIR | 7.5 to 10 hp | Smaller or intermittent air demand |
| Oil free scroll | SpiralAIR | 2 to 30 hp | Quiet running near people; dental, labs, light industry |
| Oil free screw (water injected) | WisAIR | 20 to 75 hp | Continuous industrial air demand |
| Oil free rotary screw | Worthington Creyssensac OF | 20 to 75 hp | Class 0 air for continuous demand, fixed or variable speed |
| Oil free rotary screw (large) | Worthington Creyssensac OF | 75 to 220 hp | Large plants needing Class 0 air all day |
CleanAIR oil free piston air compressor (7.5 to 10 hp)
Flexibility
• Full range with different power (7–10 hp) and
pressure (4–10 bar) options.
• Base and tank mounted versions available.
Quality air
• ISO 8573-1 Class 0 pump produces TÜV-certified 100% clean air.
• High-efficiency filtration for safe operation.
Energy savings
• Direct drive technology offers major energy savings compared to belt-driven compressors.
• Start-stop technology eliminates waste during the unload cycle.
• One-bearing motor to reduce mechanical friction.
Reliability
• Patented stainless steel inlet/outlet pump valves.
• Unbeatable low maintenance costs.
Available in
CNR 75 7.5hp or CNR 100 10hp
SpiralAIR oil free scroll air compressor (2 to 30 hp)
A scroll compressor compresses air between two spirals that never touch, so the compression needs no lubrication. The result is 100% oil free air from a compact, very quiet machine: 53 to 65 dB(A), at 8 or 10 bar, with IE3 motors and no unload power consumption.
WisAIR water-injected oil free screw air compressor (20 to 75 hp)
Premium performance
• Pressure rating up to 13 bar.
• Output from 47 to 296 cfm.
• Radial cooling fan (air-cooled versions only) and sound-absorbing cabinet for premium cooling and noise performance.
Premium quality
• ISO 8573-1 Class O* certified quality air.
• Integrated dryer guaranteeing PDP < 3°C.
• Corrosion proof materials: aluminium bronze rotor housing, stainless steel rotor shaft, piping and separator vessel.
• Smooth start up with inverter driven technology.
• Clean piping.
Premium efficiency
• Unique isotherm compression brings premium saving.
• Inverter driven technology provides up to 35% energy savings.
• Limited pressure band results in an overall reduced net pressure (1 bar extra pressure= 7% energy).
• 3.5″ graphic full colour controller with web visualisation and intelligent saver cycles.
• Friction free air end bearings.
• Direct driven power train to reduce energy losses.
• Built-in dryer to reduce downstream pressure drop.
Available from 20hp – 75hp
Other oil free air compressors available
High-pressure oil-free piston compressors
- Deliver clean, oil-free air at high pressures
- Used in food and beverage, pharmaceutical, electronics and medical applications
- Available in a range of pressure and flow configurations
Centrifugal oil-free compressors
- Deliver large volumes of oil-free air efficiently
- Used where continuous supply is essential, such as power generation, petrochemical and industrial processes
- Reliable, with low maintenance needs
PET bottle blowing oil-free compressors
- Purpose-built for PET bottle production
- Deliver the pressure and flow that bottle blowing machines need
- Fitted with filtration and cooling to maintain air quality
Choosing the right oil-free compressor comes down to the air quality, pressure and flow you need, and how the machine will be used. We installed oil-free compressors for the fire station at Western Sydney Airport; see our projects. Contact us and we will help you choose.
Oil free air compressor installation and servicing
We install every oil free air compressor we sell and can add the dryer, filtration, receiver and pipework as a complete package. Our technicians service oil free machines on site across NSW from our Wyong workshop and our Wollongong branch.
Oil free air compressor FAQs
What is an oil free air compressor?
An oil free (or oilless) air compressor uses no oil in the compression chamber, so no oil can reach the compressed air. Scroll, oil free piston and water-injected screw compressors all work this way.
What does ISO 8573-1 Class 0 mean?
ISO 8573-1 is the international standard for compressed air purity. Class 0 is its most stringent class for oil content, stricter than Class 1, which allows up to 0.01 mg of oil per cubic metre of air.
Do I need an oil free compressor or an oil-injected one with filters?
Filters on an oil-injected compressor can produce very clean air, but they depend on being maintained, and a failed filter lets oil through. Where oil in the air would spoil product or put people at risk, such as food, pharmaceutical, dental, laboratory and electronics work, an oil free compressor removes that risk at the source.
Which type of oil free compressor suits my site?
It depends mainly on how much air you use. Scroll compressors suit 2 to 30 hp and are very quiet. Oil free piston compressors suit smaller or intermittent demand at 7.5 to 10 hp. Water-injected screw compressors suit continuous industrial demand from 20 to 75 hp.
How quiet is an oil free scroll compressor?
The SpiralAIR scroll range runs at 53 to 65 dB(A), quiet enough to install close to where people work.
Do oil free compressors still need servicing?
Yes. There is no oil to change in the compression chamber, but filters, seals, bearings and the dryer still need scheduled maintenance. We service oil free compressors across NSW.