Oil Free Air Compressors: Best Choice for Pure Air
Oil Free Screw Compressors
CompAir Ultima™
100% oil and silicone-free for clean air critical applications
Ultima™ is CompAir's groundbreaking oil-free PureAir screw compressor with a unique design. It is a brand new compressor range and it utilises a low pressure and high pressure dry screw airend. Each airend is individually driven by a variable speed, permanent magnet synchronous motor, offering exceptional levels of efficiency versus traditional oil-free technology.
CompAir is always improving the best products to be even better and more cutting edge.
Ultima™ - the real deal
Ultima compressors are 100% oil and silicone-free and meet ISO 8573-1 Class Zero (2010), making them the ideal choice for stringent oil-free applications within food and beverage, pharmaceutical, electronic and the automotive industries. What makes this compressor series unique is the lack of a gearbox. Ultima uses ultra high efficiency direct drive motors which replace the gearbox and the single motor, which optimise performance throughout the complete volume range, as the airends can be driven at different speeds dependant on the demand. With a single motor driving both airends together this is not possible. This is where Ultima is hard to beat.
Oil-free air compressors are engineered so that no oil enters the compression chamber, ensuring the compressed air is 100% free of oil and silicone contamination — essential for processes where air purity is critical (e.g., food, beverage, pharmaceuticals, electronics).
Key benefits of oil-free systems:
Pure air output with no risk of oil carry-over
Lower downstream filtration requirements
Reduced maintenance (no oil changes or oil-related leaks)
Lower total cost of ownership in many industrial environments
🔹 Highlights: Ultima Oil Free Screw Air Compressor
🛠️ Premium Industrial Performance
100% oil- and silicone-free air — meets ISO 8573-1 Class 0 (highest purity standard) for especially sensitive applications such as pharmaceuticals, food & beverage, electronics and automotive.
Two-stage dry screw compression with separately driven high- and low-pressure airends for optimized efficiency.
⚙️ Advanced Technology
Direct-drive motors with a “digital gearbox” replace traditional gearbox setups, minimizing friction and energy loss.
Variable speed permanent magnet synchronous motors improve efficiency across load ranges.
Ultra-compact footprint — significantly smaller than traditional two-stage oil-free compressors (up to ~37–50 % smaller than many competitive models).
📈 Efficiency & Cost Savings
Lower energy usage, especially at partial loads — uses significantly less idle power than conventional designs.
Optional heat-recovery capability can reuse up to ~94 % of heat generated for process or facility heating, cutting operating costs.
📊 Smart Features
Remote and predictive monitoring via integrated controllers (e.g., Delcos XL SE7 / iConn) — supports proactive maintenance and optimized uptime.
Quiet operation — suitable for installation near points of use, reducing facility noise.
CompAir D110 Oil Free Rotary Screw Compressor – Industrial screw-type oil-free compressor with robust performance and capacity.
Oil‑Free Silent Air Compressor 30L 550W – Compact, quieter oil-free compressor for smaller workshops or light applications.
Air Compressor (25 Ltr) Oil Free Auto Cut – Small “auto-cut” oil-free air compressor for light jobs.
Oil‑Free Silent Air Compressor 40L Round 750W Copper – Mid-range silent oil-free compressor with a larger tank.
🏭 When to Choose an Oil-Free Screw Compressor Like Ultima™
Choose oil-free screw compressors when your application demands:
Certified pure air without oil or silicone contamination
High reliability and continuous duty operation
Lower lifecycle energy and maintenance costs
Advanced features like remote monitoring and heat recovery
These are ideal for industry-critical uses where air quality impacts production quality and safety.
