Water-Lubricated Oil-Free Screw Air Compressor
AquaPure Series (315WPM / Class 0) — 100% oil-free water-injected screw compression engineered for pharmaceutical manufacturing, food & beverage processing, electronics cleanrooms, and high-purity industrial applications.
AirSpace AquaPure water-lubricated oil-free screw air compressor, delivering ISO 8573-1 Class 0 certified pure air using water injection.
Access complete spec sheets, sizing tables and water-injected oil-free reports.
Direct Answer
A water-lubricated oil-free screw air compressor uses pure water instead of oil to lubricate, seal, and cool the compression chamber. This eliminates hydrocarbon contamination at the source, achieving certified ISO 8573-1 Class 0 oil-free air. AirSpace Machinery engineers the AquaPure series (including our flagship 315WPM configuration) specifically for contamination-sensitive facilities where product purity and low operating temperatures are paramount.
Why Choose Water-Lubricated Oil-Free Technology?
- 100% oil-free compression — water injection seals and cools the screw elements without a single drop of oil in the compression chamber.
- Certified ISO 8573-1 Class 0 — independently tested and verified pure air for pharmaceuticals, food, and electronics.
- Isothermal compression advantage — water absorbs heat immediately during compression, keeping operating temperatures lower and improving volumetric efficiency.
- Eliminate downstream oil removal — zero oil carryover means lower filter replacement costs and zero risk of oil contamination in product lines.
- 55°C high-ambient rating — robust cooling design engineered for demanding factory floors.
Technical Planning Range — AquaPure Water-Lubricated Series
| Model Range | Power (HP / kW) | Working Pressure | Indicative FAD | Lubrication / Purity |
|---|---|---|---|---|
| AP-WL-30 | 30 HP / 22 kW | 7–10 bar | 3.0–3.8 m³/min | Water-injected / Class 0 |
| AP-WL-50 | 50 HP / 37 kW | 7–10 bar | 5.0–6.2 m³/min | Water-injected / Class 0 |
| AP-WL-75 | 75 HP / 55 kW | 7–10 bar | 7.5–9.5 m³/min | Water-injected / Class 0 |
| AP-WL-100 | 100 HP / 75 kW | 7–10 bar | 10.5–13.0 m³/min | Water-injected / Class 0 |
| AP-WL-315WPM | 315 HP / 250 kW (Flagship) | 7–10 bar | 38.0–45.0 m³/min | Water-injected PMV / Class 0 |
FAD should be compared at the stated operating pressure under ISO 1217 standards. Final dimensions, weight, voltage, frequency, and water treatment filtration to be confirmed via RFQ.
Target Applications
- Pharmaceutical production, cleanrooms, and tablet coating
- Food & beverage processing, brewing, and packaging
- Electronics manufacturing and component cleaning
- Textile processing and air-jet weaving
- Medical equipment manufacturing and hospital supply
- Chemical and petrochemical high-purity processes
FAQ for Procurement Engineers
How does water lubrication prevent oil contamination?
Instead of oil, pure filtered water is injected into the screw chamber to lubricate, cool, and seal the rotors. Because water is non-toxic and separated easily in the final circuit, the compressed air is 100% oil-free and meets ISO 8573-1 Class 0 standards.
What are the benefits of the 315WPM water-lubricated model?
The 315WPM combines high-capacity water-injected compression with permanent magnet variable frequency drive (PMV) technology, delivering massive Class 0 airflow while maximizing energy savings in large industrial plants.
What is the delivery lead time?
Factory-direct delivery is typically planned within 7–35 days, depending on configuration, testing, documentation, and production scheduling.
Where can I download technical specifications?
Full technical data sheets and Class 0 reports are available in our Downloads Center.
Request an AquaPure Water-Lubricated Compressor Proposal
Send an RFQ for a project-matched design and quotation:
- Name
- Company
- Required Air Demand (FAD, m³/min / CFM)
- Target Pressure (bar / psi)
- Application (pharma / food / electronics / other)
- Required Purity Standard (ISO 8573-1 Class 0)
- Destination Country
- Inquiry Type: New project / Factory replacement / Distributor partnership
Get a Proposal — AirSpace engineers will verify the water-injected air end, pressure, FAD, water filtration system, and export documentation before quotation.
⚡ Is Your Factory Bleeding Cash?
Most fixed-speed compressors waste $3,600/year in "Unload Tax." Test your waste level in 30 seconds.
RUN THE ROI TEST →