EP-CM15BF Water-Lubricated Oil-Free Screw Air Compressor
The EP-CM15BF is a 15 kW fixed-frequency water-lubricated oil-free screw compressor delivering up to 2.40 m³/min at 0.8–1.25 MPa — stepping into genuine production-scale airflow capacity with structural Class 0 oil-free air quality, serving textile operations, food processing lines, and multi-workstation light industrial environments.
EP-CM15BF | 15 kW Production-Scale Water-Lubricated Oil-Free Compressor — 2.40 m³/min
The transition from single-workstation or laboratory-scale compressed air supply to genuine production-line capacity marks a qualitative shift in compressor selection criteria. At production scale, continuous duty becomes the operating assumption rather than the exception, multiple simultaneous users place varying and sometimes unpredictable demand on the supply system, and the consequences of compressed air quality failures extend across entire production batches rather than single experimental runs. The compressor must be both technically capable and operationally durable.
The EP-CM15BF marks this transition in the CMB series. At 15 kW (20 HP) and a peak free air delivery of 2.40 m³/min (85 cfm) at 0.8 MPa, it enters genuine production-scale airflow capacity while retaining all the fundamental advantages of water-lubricated single-screw technology: structural ISO 8573-1 Class 0 oil-free air, single-stage compression to 1.25 MPa, and a design service life exceeding 25 years of 7×24 continuous operation. For textile manufacturers, food processors, and multi-workstation light industrial facilities stepping up from smaller compressors, the EP-CM15BF provides a single machine answer. Visit our products page to see the full CMB output range.
Technical Specifications
| Parameter | 0.8 MPa | 1.0 MPa | 1.25 MPa |
|---|---|---|---|
| Motor Power | 15 kW / 20 HP | 15 kW / 20 HP | 15 kW / 20 HP |
| FAD (m³/min) | 0.64–2.40 | 0.85–2.12 | 0.64–1.61 |
| FAD (cfm) | 23–85 | 30–75 | 23–57 |
| Noise Level | 63 dB(A) | 63 dB(A) | 63 dB(A) |
| Weight (Water-cooled) | 900 kg | 900 kg | 900 kg |
| Weight (Air-cooled) | 750 kg | 750 kg | 750 kg |
| Dimensions W-cooled (mm) | 1900×1000×1635 | 1900×1000×1635 | 1900×1000×1635 |
| Dimensions A-cooled (mm) | 1680×1000×1335 | 1680×1000×1335 | 1680×1000×1335 |
| Air Quality | ISO 8573-1 Class 0 | ISO 8573-1 Class 0 | ISO 8573-1 Class 0 |
| Lubrication | Pure water — zero oil | Pure water — zero oil | Pure water — zero oil |
Isothermal Compression: The Foundation of 15 kW Efficiency
At 15 kW, the difference between isothermal and adiabatic compression becomes financially material. A 15 kW compressor running 8,000 hours per year consumes 120,000 kWh annually before accounting for loading factor. A 10% efficiency improvement from isothermal versus adiabatic compression at equivalent output represents 12,000 kWh per year — at industrial electricity rates, a meaningful annual saving that compounds over the 25+ year service life of the machine.
Water lubrication achieves this isothermal effect by injecting pure water throughout the compression process. The water absorbs heat continuously as the gas is compressed, maintaining the compression chamber at ambient +15°C rather than the 150–200°C of adiabatic dry compression. The compressed gas reaches its target pressure with a smaller temperature rise, requiring less energy input to achieve the same final pressure state. This is not a design optimisation — it is a direct consequence of the thermodynamics of isothermal versus adiabatic compression, and it operates consistently across the full output range of the EP-CM15BF.
Key Features
2.40 m³/min Production-Scale Output
At 2.40 m³/min (85 cfm) peak FAD at 0.8 MPa, the EP-CM15BF supports genuine multi-user production environments: five to eight simultaneous light production workstations, a small textile air-jet loom installation, or a food processing line with pneumatic conveying and packaging equipment running simultaneously.
Continuous 7×24 Operation Design
The water lubrication mechanism maintains compression chamber temperature at ambient +15°C continuously — preventing the thermal fatigue and cyclic stress that limits the continuous-duty rating of some dry oil-free designs. The air end is rated for over 25 years of 7×24 continuous operation at design pressure and flow.
Full 0.8–1.25 MPa Adjustability
Three working pressure levels — 0.8, 1.0, and 1.25 MPa — are available from a single machine with PLC pressure setpoint adjustment. Facilities with applications at different pressure levels can serve them from one compressor without parallel unit configurations or pressure boosters.
63 dB(A) — Industrial-Friendly Noise
At 63 dB(A), the EP-CM15BF is significantly quieter than equivalent piston or oil-injected twin-screw compressors at this output level, and well below the 85 dB(A) mandatory hearing protection threshold. Installation alongside production equipment without specialist acoustic enclosures is practical in most industrial environments.
Zero Oil Waste Stream
No oil in the compression circuit means no oil-contaminated condensate is produced. ISO 14001-certified facilities eliminate the oil waste stream from their environmental compliance scope entirely — no oil-water separator installation, no hazardous waste collection contract, no regulatory reporting for compressor oil disposal.
0.1 μm Water Filtration System
The stainless steel lubricating water filtration system — using high-precision glass fiber cotton multi-layer filter elements with 0.1 μm accuracy — maintains water cleanliness throughout the operating cycle. Filtered water extends air end service life by preventing particulate damage to the screw-star wheel interface and compression chamber surfaces.
Customer Case Studies
India — Textile Air-Jet Loom Facility
Industry: Textile Manufacturing | Application: Clean oil-free air for weft insertion on 8 air-jet looms
"Oil contamination in our previous loom air supply was causing yarn staining defects in approximately 2% of production — enough to affect profitability on premium fabric orders. The EP-CM15BF's structural Class 0 oil-free air eliminated all oil-related yarn defects. The machine supplies all eight looms simultaneously at 0.5 MPa with margin, and the water lubrication technology handles our 40°C workshop ambient temperature without the efficiency loss we experienced with our previous dry oil-free unit."
★★★★★
Brazil — Packaged Food Manufacturer
Industry: Food Manufacturing | Application: Oil-free air for pneumatic conveying, sealing machines, and label applicators on three production lines
"Our ANVISA food safety certification required documented Class 0 oil-free compressed air at all product-contact air points. The EP-CM15BF covers three production lines simultaneously and the TUV certification document satisfied our regulatory inspector immediately. We had previously been running an oil-injected compressor with a three-stage filtration train — the EP-CM15BF replaced the compressor and the entire downstream treatment chain with one machine and no oil-removal equipment."
★★★★★
South Africa — Mining Equipment Component Manufacturer
Industry: Industrial Manufacturing | Application: Oil-free air for precision machining centres and pneumatic assembly tools across 6 workstations
"We specified the EP-CM15BF after our quality audit identified our previous oil-injected compressor as the source of surface contamination defects on machined components requiring subsequent rework. The EP-CM15BF's 2.40 m³/min output is sufficient for all six workstations simultaneously. In our 35–38°C workshop conditions, the water-lubricated design performs consistently — something our previous dry oil-free trial unit struggled with in summer months."
★★★★★
Frequently Asked Questions
Scale Up to Production Capacity Without Compromising Air Quality
Textile manufacturers, food producers, and light industrial facilities in India, Brazil, South Africa, and 50+ markets rely on Ever Power 15 kW water-lubricated technology as the foundation of their production compressed air systems. Share your application requirements and our engineers will confirm system fit within 24 hours.
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