100% oil-free air for sensitive and high-purity applications
Oil-free screw compressors are designed for industries that demand absolute purity in compressed air. Thanks to their advanced design, they eliminate any risk of oil contamination and deliver consistent performance in critical processes.
Operating principle of oil-free screw compressors
- Twin rotors
Two precisely shaped rotors rotate in opposite directions, trapping and compressing air. - No oil injection
Compression occurs without oil; rotors have special coatings like Teflon or ceramics to minimize friction. - External cooling systems
Cooling is achieved via air or water-cooled heat exchangers, separated from the compression chamber. - Multi-stage compression
Often two or more stages are used with intercooling for higher pressure and thermal efficiency. - Post-treatment
Filters and dryers ensure clean, dry, and particle-free compressed air.
Key Advantages
100% oil-free air
Meets ISO 8573-1 Class 0 for air purity—ideal for food, pharma, electronics.
Reduced maintenance
Fewer consumables, longer service intervals, and minimized downtime.
Lower total cost of ownership
No oil separation, fewer filter replacements, and lower energy losses.
Reliable operation
No oil leakage risk, safe for cleanroom and explosive environments.
Stable air quality
Consistent output without oil-related degradation or contamination.
Applications
Food & Beverage: Compressed air in direct contact with products or packaging.
Pharmaceuticals: Sterile manufacturing under GMP conditions.
Electronics: Clean compressed air for chip and circuit production.
Medical & Hospitals: Breathing air systems, surgical tools, lab environments.
Chemical Industry: Oil-free air prevents contamination and corrosion.
Textile and Automotive: Pneumatics, painting lines, and sensitive tools.
Paper & Printing: Clean air for handling and finishing processes.
Energy & Environment: Biogas, wastewater treatment, air separation units.
