Water-injected oil-free screw air compressor
company
Founded in Hangzhou, China
Established 2003 · Zhejiang Province
20+ Years of Compressor Engineering
20,000 m² Production Facility
ISO 9001 · ISO 14001 · ISO 45001 Certified
30+ Patents in Oil-Free Compression Technology
500+ Global Installations
20+ Global Installations
24-Hour Technical Support Response
Highly experienced
Hangzhou Ever Power Air Compressor Co., Ltd.
We specialize in the design, manufacture, and global export of water-filled oil-free screw air compressors. We are committed to providing Class 0 oil-free compressed air solutions for the pharmaceutical, food, electronics, textile, and chemical industries.
Manufacturer · Exporter · OEM Partner
RSVP
Oil-Free Air Compressors For Sale
Listed below are our six best-selling oil-free compressor models. If you require other customized specifications or different types of compression equipment, please feel free to contact our team for professional solutions.
- Class 0 Totally Oil-Free Air
- Pure Water Lubrication System
- Low Noise & Energy Saving
Low Pressure Water Lubricated Oil-Free Screw Compressor
Pure water lubrication delivers 100% oil-free compressed air, perfectly suited for pharmaceutical, food and electronic manufacturing requirements.
- Stable Medium Pressure Output
- Zero Oil Contamination
- 24-hour Continuous Operation
Medium Pressure Oil-Free Screw Compressor
Consistent medium-pressure output with zero oil contamination, engineered for stable continuous operation for industrial process gas supply.
- Specially for Fiber Laser Cutting
- High Clean Dry Pressurized Air
- Reduce Nozzle Blockage Risk
High Pressure Oil-Free Screw Compressor for Laser Cutting
Optimized exclusively for fiber laser cutting. Clean high-pressure air prevents nozzle blockage and enhances cutting precision and surface finish.
- Full Explosion-Proof Structure
- Safe for Oxygen Medium
- No Hidden Combustion Risk
Explosion-Proof Oil-Free Oxygen Compressor
Full explosion-proof construction for oxygen compression. Completely oil-free design eliminates potential combustion risks within oxygen piping systems.
- High Pressure Oxygen Filling
- Stable Pressurization Performance
- Adapted for Gas Cylinder Station
High Pressure Oxygen Bottling Compressor
Professional high-pressure oxygen filling unit with stable pressurization performance, widely deployed for oxygen cylinder filling stations.
- Skid-Mounted Integrated Design
- Explosion-Proof Safety Standard
- Safe Acetylene Compression
High Pressure Acetylene Compressor (Explosion-Proof Skid-Mounted)
Integrated skid-mounted explosion-proof unit. Safe compression for acetylene gas, ideal for chemical plants and industrial gas enterprises.
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ALL INDUSTRIES & CAPACITY RANGES
EverPower water-injected oil-free screw air compressors deliver ISO 8573-1 Class 0 certified, 100% contaminant-free compressed air. Water replaces oil entirely as both lubricant and coolant inside the compression chamber — eliminating downstream oil filters, reducing maintenance costs, and guaranteeing the purest process air for your most sensitive applications.
Water-lubricated compression — zero oil risk, zero contamination
Energy-efficient VFD models reduce power consumption by up to 35%
Certified for pharmaceutical, food, electronics & textile applications
mission
OUR QUALITY STANDARD
Our quality management system is certified to ISO 9001:2015, and our production processes are independently audited by SGS. Every compressor leaves our facility with a full test report, covering compressed air purity, pressure stability, noise level, vibration, and oil-carry-over measurement verified at 0 ppm.We do not cut corners at the final stage. Certified oil-free performance is not a marketing claim — it is a documented, traceable result on every unit we ship.
Where Our Oil-Free Screw
Air Compressors Work
Water-injected oil-free screw air compressors deliver ISO 8573-1 Class 0 certified, 100% contamination-free compressed air — trusted across the world's most demanding industries.
GMP-compliant, ISO 8573-1 Class 0 certified compressed air for tablet coating, sterile liquid filling, fermentation bioreactors, lyophilisation, and primary packaging lines. Zero oil aerosol risk throughout the entire process.
FDA-compatible oil-free air for beverage bottle filling, beer and carbonation systems, bread aeration, dairy processing, and food-contact packaging automation. Eliminates hydrocarbon contamination risk at the source.
Ultra-clean compressed air for PCB etching, chip bonding, wafer cleaning, SMT pick-and-place, and ISO Class 5–7 cleanroom environments. Trace oil contamination causes direct yield loss — our compressors eliminate that risk entirely.
High-flow, oil-free compressed air for air-jet loom weft insertion, yarn tensioning, and dyeing process control. Oil in the air stream causes irreversible fabric staining and nozzle blockage — eliminating oil at source protects output quality.
Inert, oil-free instrument air for chemical reactors, pneumatic control valves, diaphragm pumps, and Ex-zone automation systems. Oil contamination triggers unwanted side reactions — water-injected compression is inherently inert and safe.
Absolutely dry, oil-free supply air for automotive paint booths, robotic spray arms, electrostatic coating guns, and surface preparation blasting. Oil aerosol in spray air causes fisheye defects, adhesion failure, and costly rework.
We cover more applications.
Our technical team provides free flow calculations, custom configurations, and full project support — response within 24 hours.
Related Information
Who Certifies Water-Injected Compressors to ISO 8573-1 Class 0?
Why Independent Certification Matters More Than the Manufacturer's Own Claim When a compressor manufacturer states that their machine is "ISO 8573-1 Class 0 certified," the first question a serious buyer should ask is: certified by whom? The distinction between a...
When Is ISO 8573-1 Class 0 Certification Mandatory?
The Short Answer — and Why It Is More Nuanced Than It Appears ISO 8573-1 Class 0 certification is mandatory when the consequences of oil contamination in the compressed air stream are unacceptable — either from a product quality, patient safety, food safety, or...
Which Standard Should a Water-Injected Compressor Meet for Pharmaceutical Air?
Why Pharmaceutical Air Is Held to a Different Standard Compressed air in a pharmaceutical facility is not simply a utility — in many applications it is classified as a direct contact material, touching active pharmaceutical ingredients, finished dosage forms,...