Views: 0 Author: Site Editor Publish Time: 2026-03-03 Origin: Site
For industrial operations requiring stable medium-pressure compressed air at 20–40 bar with zero oil contamination, oil-free water-lubricated screw compressors deliver the ideal balance of purity, efficiency, durability and low total cost of ownership. Built for continuous duty in critical processes, they replace high-maintenance piston machines and energy-heavy dry oil-free units to power your production reliably, sustainably and economically.
Why 20–40 Bar Oil-Free Water-Lubricated Compressors Lead?
100% Oil-Free, Class 0 Certified Air
Water replaces lubricating oil entirely for cooling, sealing and lubrication — delivering ISO 8573-1 Class 0 oil-free air with zero risk of oil contamination. Safely used in food & beverage, pharmaceuticals, electronics, PET blowing, high-pressure gas bottling, aerospace and precision manufacturing where air purity protects product quality and brand trust.
Near-Isothermal High-Efficiency Compression
Water’s superior cooling keeps discharge temperatures low (40–50°C), enabling near-isothermal compression. Compared to dry oil-free and piston compressors, energy use drops 15–35%, slashing monthly power expenses while boosting airflow per kilowatt.
Robust 20–40 Bar Pressure Stability
Engineered for steady medium-pressure output, these compressors maintain consistent pressure under variable loads. The rugged screw airend, stainless steel rotors and balanced structure eliminate pulsation for smooth, reliable 24/7 operation — ideal for high-pressure blowing, testing, filling and process actuation.
Ultra-Low Maintenance & Long Service Life
Only two consumables: air filter and water filter. No oil changes, no oil separator replacements, no complex overhauls. Low operating temperatures and water-lubricated contact reduce wear, extending service life beyond 50,000 hours and cutting downtime and maintenance labor.
Eco-Friendly & Quiet Operation
Zero oil waste, zero toxic emissions — fully aligned with green manufacturing and carbon reduction goals. Low rotational speed and balanced design lower vibration and noise for a safer, more comfortable workplace.
Ideal Applications for 20–40 Bar Water-Lubricated Oil-Free Compressors
PET bottle blowing & packaging
Pharmaceutical & medical gas systems
Food & beverage processing
Electronics & semiconductor manufacturing
High-pressure gas cylinder filling
Aerospace & precision instrumentation
Chemical & clean industrial processes
High-pressure cleaning & testing
Built for Performance, Backed by Quality
Our 20–40 bar oil-free water-lubricated compressors feature:
• Stainless steel rotors & corrosion-resistant components
• Permanent magnet variable frequency (PM VFD) for extra savings
• Intelligent control with real-time monitoring & protection
• Compact, modular design for easy installation
• CE, ISO 9001, ISO 14001 and global product certifications
Upgrade Your Air System Today
Stop choosing between high pressure, clean air and low cost. Our 20–40 bar oil-free water-lubricated compressors give you purer air, lower energy bills, longer life and simpler maintenance in one integrated solution.
Contact us now for a customized system proposal, performance comparison or on-site demonstration. Power your critical processes with the most reliable medium-pressure oil-free air solution on the market.
