The water-lubricated oil-free screw air compressor is designed for applications that require clean, oil-free compressed air, high efficiency and reliable continuous operation. Using water lubrication technology, the compressor eliminates oil contamination from the compression process while providing stable and efficient compressed air.

Compared with conventional dry screw compressors, Ruihong’s water-lubricated oil-free design can achieve approximately 15% energy savings, while maintaining low vibration, low noise and reliable performance.

Key Features

• 100% Oil-Free Compression – No lubricating oil is involved in the compression chamber, helping prevent oil contamination in compressed air.
• Water-Lubricated Technology – Water provides lubrication and cooling during compression, supporting efficient and stable operation.
• Energy Saving – Approximately 15% energy saving compared with dry screw compressors.
• Isothermal Compression – Water helps control compression temperature and improve compression efficiency.
• Low Noise & Low Vibration – Smooth screw operation provides a quieter and more stable working environment.
• Corrosion-Resistant Airend – Uses corrosion-resistant navy copper alloy material for enhanced durability.
• Reliable & Durable – Precision manufacturing helps reduce component wear and extend service life.
• Clean, Dry Air – Water and compressed air are separated after compression to provide high-quality compressed air.

Efficient Isothermal Compression

During compression, lubricating water is injected into the compression chamber to absorb heat generated during the compression process.

This helps keep compression temperatures relatively stable, improves suction efficiency and reduces energy loss compared with traditional high-temperature compression methods.

After compression, water and air are separated through the filtration system, helping provide clean and dry compressed air for downstream equipment.

Oil-Free Air for Sensitive Applications

The oil-free design makes this compressor suitable for industries where compressed air quality is especially important, including:

• Food and Beverage
• Pharmaceutical Production
• Electronics Manufacturing
• Chemical Processing
• Packaging
• Medical Applications
• Precision Manufacturing
• Textile Production
• General Industrial Production

For production environments requiring clean compressed air, energy efficiency and reliable continuous operation, the water-lubricated oil-free screw air compressor provides an efficient and practical compressed air solution.