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Oil Free Air Compressor

Upgrade your industrial air supply system with our high-performance Class 0 oil-free air compressor, professionally designed for industries requiring ultra-clean compressed air. Different from traditional oil-injected compressors, our full oil-free design completely eliminates oil contamination, fully complying with international air quality standards and passing strict TÜV Class 0 certification, ensuring pure and safe compressed air for high-standard production processes.
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  • air compress

  • Luoyou


Working Principles


The compressor operates through a three-stage process to produce clean, oil-free air:

Intake Phase: Ambient air is drawn into the system through a high-efficiency air filter, which removes dust, debris, and other particles to protect internal components.

Compression Phase: Filtered air enters the compression section, where a pair of precision-machined helical rotors rotate to reduce air volume and increase pressure. During this stage, water is injected into the compression chamber—acting as a lubricant to minimize rotor friction and a coolant to absorb heat generated by compression, preventing overheating.

Exhaust Phase: The compressed air (now fully oil-free) is discharged through the exhaust section for use in downstream processes. The used water is either recycled (via a built-in treatment system) or safely disposed of, with no oil waste produced.


Clean-Output Oil-Free Air Compressor

Clean-Output Oil-Free Air Compressor



Characteristic Advantages


The compressor stands out with several competitive advantages:

Low Maintenance Costs: It eliminates the need for oil changes, oil filters, and oil-gas separators—cutting annual maintenance expenses to a fraction of traditional oil-lubricated compressors.

High Energy Efficiency: Its volumetric efficiency outperforms single-stage dry screw compressors by a significant margin, reducing electricity use and operational costs over time.

Environmental Friendliness: No waste oil is produced, and discharged water requires minimal treatment to meet environmental standards, aligning with sustainable manufacturing goals.

Stable Performance: The low-load rotor design reduces wear and tear, extending component life and ensuring reliable operation even in continuous 24/7 production cycles.


Applications


The QuietTech Water-Lubricated Oil-Free Compressor is tailored for industries demanding ultra-clean air:

Pharmaceutical Industry: Used for drug fermentation, capsule filling, and injection manufacturing, where oil contamination could render products unsafe or non-compliant.

Electronics Industry: Provides ultra-clean air for semiconductor lithography and circuit board welding, preventing oil-induced defects in sensitive components.

Food & Beverage Industry: Supports baking, filling, and packaging processes—ensuring no oil contaminates food products or violates hygiene regulations.

Medical Industry: Powers hospital oxygen supply systems, ventilators, and dental equipment, where oil-free air is critical for patient safety.

Textile Industry: Used in air-jet weaving and fiber processing, preventing oil stains on fabrics and maintaining product quality.

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FAQ


Is the lubricating water reusable?

Yes, the compressor includes a water recycling system that filters and treats used lubricating water, minimizing consumption. Only a small amount of make-up water is needed to replace evaporation or minor losses, reducing water waste.


How quiet is the compressor compared to traditional models?

The QuietTech Water-Lubricated Oil-Free Compressor is significantly quieter. Its water-lubricated rotors and sound-dampening design reduce noise levels far below oil-lubricated compressors, making it suitable for indoor facilities where noise compliance is required.


Does it require specialized water treatment?

The compressor uses standard industrial water (with minimal impurities) for lubrication. The built-in recycling system filters out debris, so no specialized treatment is needed—though using softened water in hard-water areas can help prevent mineral buildup.


What is your after‑sales support?


We provide four‑hour rapid response and twenty‑four‑hour on‑line technical service. Original spare‑parts supply is guaranteed. We offer operation training, remote monitoring guidance and maintenance suggestion for all our units.








The QuietTech Water-Lubricated Oil-Free Compressor delivers three key functional benefits:


100% Oil-Free Air Output: Its water-lubricated design ensures no oil enters the compression chamber, meeting the strictest purity standards for industries like pharmaceuticals and semiconductors.

Temperature Regulation: The water injection system maintains optimal operating temperatures, preventing rotor damage from overheating and ensuring consistent compression efficiency.

Low-Noise Operation: The water-lubricated rotors reduce friction and vibration, while sound-dampening components further lower noise levels—making it suitable for indoor facilities where noise pollution is a concern.


Oil-free Water Lubricated Screw Air Compressor
ModelMotor powerMaximium working pressureFADCooling water outlet/inlet diameterNoiseDimension
L*W*H
WeightQuantity of cooling water
Inlet water 32℃
Quantity of lubricating waterAir outlet
KW/HPBarM3/minDBmmKGT/HL
LY-5.5WPM5.5/7.580.3-0.783/4"57800*800*12003201.5103/4"
10.00.2-0.65
LY-7.5WPM7.5/1080.35-1.173/4"57800*800*12003202103/4"
10.00.3-1.05
LY-11WPM11/1580.54-1.721"601200*755*11304002.5263/4"
10.00.45-1.42
LY-15WPM15/2080.75-2.431"601200*755*11304403.5263/4"
10.00.65-2.17
LY-18.5WPM18.5/2580.9-3.131"631400*900*12706404301"
10.00.9-2.82
LY-22WPM22/3081.1-3.71"631400*900*12706405301"
10.00.97-3.21
LY-30WPM30/4081.55-5.21%4"661400*950*1380
1500*1080*1300
76074014"
10.01.255-4.43
LY-37WPM37/5081.91-6.501/4"661580*1000*1475
1500*1080*1300
8809401/4"
10.01.60-5.33
LY-45WPM45/6082.50-8.302"682050*1360*1688
1800*1360*1670
105010902"
10.01.91-6.30
LY-55WPM55/7583.0-10.32"692050*1360*1688
1800*1360*1670
1100121002"
10.02.60-8.55
LY-75WPM75/10083.95-13.002"722050*1360*1688
1800*1360*1670
1230181002"
10.03.40-11.50
LY-90WPM90/12085.0-16.602"732200*1550*18002080201202%"
10.04.30-14.66
LY-110WPM110/15086.0-20.22"752200*1550*18002230241202%"
10.05.0-16.66
LY-132WPM132/18086.75-23.522"752200*1550*18002360301202%2"
10.06.0-19.97
LY-160WPM160/22088.5-28.113"772700*1830*1850390035160DN80
10.07.6-25.45
LY-185WPM185/250810-31.323"772700*1830*1850405038160DN80
10.08.72-29.00
LY-200WPM200/270811.2-36.754"782700*1830*1850420042200DN100
10.09.68-31.8
LY-220WPM220/300812.2-39.64"792700*1830*1850440047200DN100
10.011.2-35.7
LY-250WPM250/340813.5-45.04"792700*1830*1850480053200DN100
10.012.3-40.0


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