Oil Free Screw Air Compressor
- Free Air Delivery (m³/min)：12.5-13.0
- Power KW:75
- Cooling Type：Air/Water Cooling
- Weight KG:≈ 2100
- Product Dimension (L×W×H, mm)：2600×1300×1700
- Discharge Pressure：8-16
- The Oil Free Air Screw Compressor is a clean, stable and high-efficiency industrial air compressor designed for oil-free compressed air supply in precision industries.
- Adopting advanced oil-free screw technology, it produces 100% oil-free, clean and dry compressed air without contamination.
- With stable performance, low noise, long service life and reliable operation, this air compressor ensures safe and clean gas supply for pharmaceutical, food, electronics, medical and other high-standard applications, making it an ideal oil-free air solution for modern industrial production.
Product Parameters
Model | Motor Power (kW) | Working Pressure (bar) | Free Air Delivery (m³/min) | Cooling Type | Product Dimension (L×W×H, mm) | Net Weight (kg) |
OF-7.5 | 7.5 | 8-10 | 1.2-1.3 | Air Cooling | 1350×750×1050 | 480 |
OF-15 | 15 | 8-10 | 2.4-2.6 | Air Cooling | 1600×850×1200 | 680 |
OF-22 | 22 | 8-12 | 3.8-4.0 | Air Cooling | 1800×950×1350 | 850 |
OF-45 | 45 | 8-12 | 7.5-7.8 | Air/Water Cooling | 2200×1100×1500 | 1350 |
OF-75 | 75 | 8-16 | 12.5-13.0 | Air/Water Cooling | 2600×1300×1700 | 2100 |
OF-110 | 110 | 8-16 | 18.0-18.5 | Water Cooling | 3000×1500×1900 | 3200 |
OF-160 | 160 | 8-16 | 28.0-28.5 | Water Cooling | 3500×1700×2100 | 4500 |
Oil Free Screw Air Compressor
Why Oil-Free Compressed Air?
In many sensitive industries, oil contamination in compressed air can cause severe consequences:
Food Industry: Oil contamination causes off-flavors, spoilage, and potential food safety incidents
Pharmaceutical Industry: Violates GMP regulations, leading to entire batch rejection
Electronics Industry: Oil mist contaminates precision components, affecting product performance
Coating Industry: Oil contamination reduces coating adhesion, causing defects like craters and orange peel
Our 100% oil-free rotary screw compressors eliminate oil contamination risk at the source, providing truly pure compressed air.
Oil-Free vs Oil-Flooded: Key Differences
| Comparison | Oil-Flooded Screw Compressor | Oil-Free Screw Compressor |
|---|---|---|
| Compression Chamber Lubrication | Oil injected | No oil, special coating + water/air cooling |
| Outlet Air Oil Content | 2-5 ppm (requires filters) | 0 ppm (Class 0 certified) |
| Applicable Industries | General industrial | Food, pharma, electronics, coating, chemical |
| Aftertreatment Requirements | Must include oil removal filters | No oil removal needed, only drying/filtration |
| Initial Investment | Lower | Higher |
| Long-Term Operating Cost | Requires oil, separator replacements | No oil-related consumables, lower maintenance |
Core Technical Advantages
1. Class 0 Oil-Free Certification
Tested by TÜV and other international authorities, achieving ISO 8573-1 Class 0 oil-free certification. This means no matter how long your system runs, there will be absolutely zero oil in your compressed air.
2. Two-Stage Compression, High Efficiency
Two-stage compression technology optimizes pressure distribution, with interstage cooling reducing second-stage inlet temperature—achieving 15%-20% energy savings compared to single-stage oil-free designs.
3. Special Coated Rotors
Rotors feature PTFE/ceramic coating for high-temperature resistance, corrosion resistance, and self-lubrication, ensuring long-term reliable operation without oil.
4. Stainless Steel Cooling System
Interstage and aftercoolers constructed from stainless steel for corrosion resistance, ensuring cooling effectiveness and extended service life.
5. Food-Grade Materials
All compressed air contact components use food-grade materials meeting FDA standards, satisfying the strictest requirements of food and pharmaceutical industries.
Applicable Industries
| Industry | Applications | Why Oil-Free? |
|---|---|---|
| Food & Beverage | Ingredient conveying, packaging, blow molding, fermentation aeration | Prevent food contamination, ensure food safety |
| Pharmaceutical | Blending, granulation, tableting, packaging | Meet GMP requirements, prevent drug contamination |
| Electronics/Semiconductor | Wafer fabrication, PCB assembly, clean rooms | Prevent oil mist contamination of precision components |
| Medical | Ventilators, dental equipment, surgical air | Direct patient contact requires 100% purity |
| Coating/Finishing | Automotive painting, furniture coating, powder coating | Prevent oil contamination causing coating defects |
| Chemical | Instrument control, pipeline purging | Avoid catalyst poisoning, reaction contamination |
Customer Case: Food Processing Plant
Dairy Products Manufacturer
Requirement: New milk powder production line needed product-contact compressed air
Solution: Two 110kW oil-free screw compressors + combined dryer + sterile filters
Results:
Achieved ISO 22000 food safety management certification
Three years operation with zero oil contamination quality complaints
30% lower annual maintenance cost compared to previous oil-flooded + multi-stage filtration solution
Why Choose Our Oil-Free Screw Compressors?
Two-Stage Compression Technology: More energy-efficient than single-stage designs, lower long-term operating costs
Lifetime Oil-Free Design: Compression chamber never contacts lubricating oil, from factory to retirement
Food-Grade Materials: FDA-compliant, meeting strictest hygiene requirements
Heat Recovery Option: Recover compression heat for process heating or space heating, additional energy savings
Leading Air Compressor Manufacturer & Supplier in China
RUILINHG Air Compressor is one of China’s leading manufacturers of high-performance air compressors. We provide global customers with technologically advanced, environmentally friendly, and reliable products at highly competitive prices, while supporting customization to flexibly meet diverse requirements.
Our products feature a long service life, energy efficiency, and environmental protection. We continuously monitor the latest trends in the air compressor market and consistently update our product designs and core technologies to ensure that the air compressor solutions we provide meet customer needs.
About RUILING Air Compressor
Oil Free Screw Air Compressor
Advantages
Zero Contamination Risk: No oil particles enter the air stream, ensuring pure compressed air for sensitive applications. Class 0 Certification: Meets strict ISO 8573-1 Class 0 standards for food, pharmaceutical, and medical industries. No Oil Carry-Over: Eliminates product spoilage, discoloration, or quality issues caused by oil contamination.
CONTACT US
Address:
Office: Lanshan District, Linyi City, Shandong Province, China
Best-Selling Products
Our self-manufacturing model endows our air compressors with distinct cost advantages, while our advanced technologies enable our products to stand out in the fierce market competition.
