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EcoAir Water-Lubricated, Oil-Free Compressor

The Oil-free Water Lubricated Screw Air Compressor represents a remarkable innovation in air compression technology. Distinguished by its water - lubricated system, it completely eradicates the necessity for oil during the compression process, guaranteeing a 100% oil - free and clean air output.
This compressor is equipped with a pair of precisely designed helical rotors. As they rotate, water is injected into the compression chamber, serving as both a lubricant and a coolant. This dual - function of water not only ensures smooth operation of the rotors but also effectively controls the temperature rise during compression, enhancing the overall efficiency of the compressor.
One of its most significant advantages is its suitability for applications with stringent air purity requirements. Industries such as food and beverage, pharmaceuticals, and electronics can rely on this compressor to provide contamination - free air, ensuring product quality and safety. Additionally, the water - lubricated system results in lower maintenance costs, as there is no need to replace oil filters or deal with oil - related issues. With its high - efficiency operation, low - noise performance, and environmental - friendliness, the Oil-free Water Lubricated Screw Air Compressor is an excellent choice for modern industrial needs.
 
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Product Overview


Engineered for high-purity industrial environments where contamination control is critical, our Oil free Water Lubricated Air Compressor stands out as a premium solution delivering 100% oil-free compressed air with rigorous TÜV Class 0 certification—the highest standard for air purity in critical applications. Unlike traditional oil-lubricated compressors, this innovative system uses deionized water as both a lubricant and coolant, eliminating the risk of oil carryover that could compromise product quality or equipment performance. The water-based lubrication enables isothermal compression, a process that minimizes energy loss through heat dissipation, resulting in superior energy efficiency compared to conventional models.


Constructed with a stainless steel air end and corrosion-resistant internal components, the compressor thrives in harsh conditions such as high humidity or chemical exposure, ensuring 24/7 continuous operation without performance degradation. Its intelligent PLC control system automates pressure regulation, temperature monitoring, and maintenance alerts, reducing manual oversight while optimizing operational stability. This combination of purity, durability, and smart technology makes it the ideal choice for industries with strict hygiene and quality requirements, including food processing, pharmaceuticals, electronics manufacturing, and chemical processing.


Product Specifications


Pressure Range: Precisely adjustable from 8–10 bar (116–145 psi) to accommodate diverse application needs, from low-pressure packaging lines to high-pressure industrial tools.

Flow Rate: Offers versatile output across models, ranging from 1.10 m³/min (39 CFM) for small-scale operations to 42.6 m³/min (1504 CFM) for large industrial facilities, with popular models like LSW-200W PM-8 (200kW) and LSW-250W PM-10 (250kW) tailored to medium and heavy-duty demands.

Motor Power: Equipped with 7.5–250 kW motors boasting IE3/IE4 energy efficiency ratings, ensuring compliance with global energy standards, paired with IP55 protection to resist dust and water ingress.

Noise Level: Operates at ≤79 dB during full-load operation, significantly quieter than oil-lubricated alternatives, contributing to a safer and more comfortable workplace.

Cooling System: Advanced water-cooled design with a ≤25°C inlet temperature requirement, featuring a copper heat exchanger for efficient thermal management even in high-ambient conditions.




Ultra-Clean Air Quality: Adheres to ISO 8573-1:2010 Class 0 oil-free air standards, achieving ≤0.01 μm particle removal and ≤0.001 ppm oil content—critical for applications where even trace contaminants could ruin products or damage sensitive equipment.

Energy Efficiency: Integrates a direct-drive permanent magnet (PM) motor with variable speed drive (VSD) technology, reducing energy consumption by 30–40% compared to fixed-speed compressors by matching output precisely to real-time demand.

Corrosion Resistance: The stainless steel air end, copper heat exchanger, and epoxy-coated exterior ensure 20+ years of reliable service in high-humidity environments, such as coastal factories or pharmaceutical cleanrooms.

Low Maintenance: Designed for minimal upkeep, requiring only annual water treatment (to prevent scaling) and filter replacements, with extended 10,000-hour maintenance intervals that reduce downtime and operational costs.

Smart Control: Equipped with an optional IoT module for remote monitoring, allowing operators to track pressure, temperature, water quality, and energy usage in real time via a cloud-based platform, enabling predictive maintenance and performance optimization.


Oil-free Water Lubricated Screw Air Compressor
Model Motor power Maximium working pressure FAD Cooling water outlet/inlet diameter Noise Dimension
L*W*H
Weight Quantity of cooling water
Inlet water 32℃
Quantity of lubricating water Air outlet
KW/HP Bar M3/min DB mm KG T/H L
LY-5.5WPM 5.5/7.5 8 0.3-0.78 3/4" 57 800*800*1200 320 1.5 10 3/4"
10.0 0.2-0.65
LY-7.5WPM 7.5/10 8 0.35-1.17 3/4" 57 800*800*1200 320 2 10 3/4"
10.0 0.3-1.05
LY-11WPM 11/15 8 0.54-1.72 1" 60 1200*755*1130 400 2.5 26 3/4"
10.0 0.45-1.42
LY-15WPM 15/20 8 0.75-2.43 1" 60 1200*755*1130 440 3.5 26 3/4"
10.0 0.65-2.17
LY-18.5WPM 18.5/25 8 0.9-3.13 1" 63 1400*900*1270 640 4 30 1"
10.0 0.9-2.82
LY-22WPM 22/30 8 1.1-3.7 1" 63 1400*900*1270 640 5 30 1"
10.0 0.97-3.21
LY-30WPM 30/40 8 1.55-5.2 1%4" 66 1400*950*1380
1500*1080*1300
760 7 40 14"
10.0 1.255-4.43
LY-37WPM 37/50 8 1.91-6.50 1/4" 66 1580*1000*1475
1500*1080*1300
880 9 40 1/4"
10.0 1.60-5.33
LY-45WPM 45/60 8 2.50-8.30 2" 68 2050*1360*1688
1800*1360*1670
1050 10 90 2"
10.0 1.91-6.30
LY-55WPM 55/75 8 3.0-10.3 2" 69 2050*1360*1688
1800*1360*1670
1100 12 100 2"
10.0 2.60-8.55
LY-75WPM 75/100 8 3.95-13.00 2" 72 2050*1360*1688
1800*1360*1670
1230 18 100 2"
10.0 3.40-11.50
LY-90WPM 90/120 8 5.0-16.60 2" 73 2200*1550*1800 2080 20 120 2%"
10.0 4.30-14.66
LY-110WPM 110/150 8 6.0-20.2 2" 75 2200*1550*1800 2230 24 120 2%"
10.0 5.0-16.66
LY-132WPM 132/180 8 6.75-23.52 2" 75 2200*1550*1800 2360 30 120 2%2"
10.0 6.0-19.97
LY-160WPM 160/220 8 8.5-28.11 3" 77 2700*1830*1850 3900 35 160 DN80
10.0 7.6-25.45
LY-185WPM 185/250 8 10-31.32 3" 77 2700*1830*1850 4050 38 160 DN80
10.0 8.72-29.00
LY-200WPM 200/270 8 11.2-36.75 4" 78 2700*1830*1850 4200 42 200 DN100
10.0 9.68-31.8
LY-220WPM 220/300 8 12.2-39.6 4" 79 2700*1830*1850 4400 47 200 DN100
10.0 11.2-35.7
LY-250WPM 250/340 8 13.5-45.0 4" 79 2700*1830*1850 4800 53 200 DN100
10.0 12.3-40.0



Food & Beverage: Powers bottling lines, canning equipment, and packaging machinery with contamination-free air, ensuring compliance with FDA, EU 10/2011, and other food safety regulations to prevent product spoilage or health risks.

Pharmaceuticals: Supports sterile filling stations, bioreactor systems, and lyophilization equipment in ISO Class 5 cleanrooms, where air purity is critical for drug safety and efficacy during production and packaging.

Electronics: Provides dust-free compressed air for semiconductor assembly, circuit board manufacturing, and LCD panel production, preventing microchip defects caused by particulate contamination or oil residue.

Chemical Processing: Handles corrosive gas compression and pneumatic valve actuation in petrochemical plants, leveraging stainless steel components to resist chemical erosion and ensure process integrity.



Oil-free Water Lubricated Screw Air Compressor
Model Motor power Maximium working pressure FAD Cooling water outlet/inlet diameter Noise Dimension
L*W*H
Weight Quantity of cooling water
Inlet water 32℃
Quantity of lubricating water Air outlet
KW/HP Bar M3/min DB mm KG T/H L
LY-5.5WPM 5.5/7.5 8 0.3-0.78 3/4" 57 800*800*1200 320 1.5 10 3/4"
10.0 0.2-0.65
LY-7.5WPM 7.5/10 8 0.35-1.17 3/4" 57 800*800*1200 320 2 10 3/4"
10.0 0.3-1.05
LY-11WPM 11/15 8 0.54-1.72 1" 60 1200*755*1130 400 2.5 26 3/4"
10.0 0.45-1.42
LY-15WPM 15/20 8 0.75-2.43 1" 60 1200*755*1130 440 3.5 26 3/4"
10.0 0.65-2.17
LY-18.5WPM 18.5/25 8 0.9-3.13 1" 63 1400*900*1270 640 4 30 1"
10.0 0.9-2.82
LY-22WPM 22/30 8 1.1-3.7 1" 63 1400*900*1270 640 5 30 1"
10.0 0.97-3.21
LY-30WPM 30/40 8 1.55-5.2 1%4" 66 1400*950*1380
1500*1080*1300
760 7 40 14"
10.0 1.255-4.43
LY-37WPM 37/50 8 1.91-6.50 1/4" 66 1580*1000*1475
1500*1080*1300
880 9 40 1/4"
10.0 1.60-5.33
LY-45WPM 45/60 8 2.50-8.30 2" 68 2050*1360*1688
1800*1360*1670
1050 10 90 2"
10.0 1.91-6.30
LY-55WPM 55/75 8 3.0-10.3 2" 69 2050*1360*1688
1800*1360*1670
1100 12 100 2"
10.0 2.60-8.55
LY-75WPM 75/100 8 3.95-13.00 2" 72 2050*1360*1688
1800*1360*1670
1230 18 100 2"
10.0 3.40-11.50
LY-90WPM 90/120 8 5.0-16.60 2" 73 2200*1550*1800 2080 20 120 2%"
10.0 4.30-14.66
LY-110WPM 110/150 8 6.0-20.2 2" 75 2200*1550*1800 2230 24 120 2%"
10.0 5.0-16.66
LY-132WPM 132/180 8 6.75-23.52 2" 75 2200*1550*1800 2360 30 120 2%2"
10.0 6.0-19.97
LY-160WPM 160/220 8 8.5-28.11 3" 77 2700*1830*1850 3900 35 160 DN80
10.0 7.6-25.45
LY-185WPM 185/250 8 10-31.32 3" 77 2700*1830*1850 4050 38 160 DN80
10.0 8.72-29.00
LY-200WPM 200/270 8 11.2-36.75 4" 78 2700*1830*1850 4200 42 200 DN100
10.0 9.68-31.8
LY-220WPM 220/300 8 12.2-39.6 4" 79 2700*1830*1850 4400 47 200 DN100
10.0 11.2-35.7
LY-250WPM 250/340 8 13.5-45.0 4" 79 2700*1830*1850 4800 53 200 DN100
10.0 12.3-40.0


1. Who are we?

We are a compressor manufacturer factory in Shanghai.We have more than 10 years experience in producing and exporting air compressor, air dryer and air filter.

2. How about your customer service?

24 hours on-line service available

3. Why choose us?

With Excellent Design, Advanced Technology, and a well-known reputation in both domestic and overseas markets, we are much confident in our products' quality and service.

4. What are the payment terms?

We accept T/T, L/C, D/P, Western Union, Paypal, and Credit Cards.

5. Can products be customized?

We can alter, re-design and reassemble products to meet clients' requirements upon request.


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+86-130-6266-0453
+86-131-2271-0731

WhatsApp

64-27-622-8288
+8618721668011

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