water lubricated oil free screw air compressor is silent

The oil-free water lubrication screw air compressor features a high-precision, wear-resistant screw mainframe combined with advanced permanent magnet frequency conversion technology. This ensures long-term, stable operation and significantly reduced energy consumption. Utilizing water for lubrication and sealing, it delivers 100% oil-free, clean compressed air, making it ideal for industries with strict air quality requirements such as medical, food, pharmaceutical, and electronic manufacturing.

Features of Oil-Free Water Lubrication Screw Air Compressor

1. Oil-free water lubrication, cleaner air: Uses water as the lubrication, cooling, and sealing medium—no lubricating oil required, eliminating oil contamination risks and meeting ISO 8573-1 Class 0 oil-free standards for high-purity output air.
2. Permanent magnet motor, high efficiency and energy saving: Equipped with a high-efficiency PMSM, boosting energy efficiency by 5%-15% compared to traditional motors, reducing power consumption and enhancing stability.
3. Ultra-quiet design, low-noise operation: Multiple noise reduction features, including a sound insulation box and advanced materials, ensure noise levels ≤ 65dB(A), suitable for noise-sensitive environments.
4. High-efficiency direct connection transmission: Integrated direct drive design minimizes mechanical loss, maximizes transmission efficiency, and reduces maintenance costs.
5. Water cooling technology for improved compression efficiency: Water provides both lubrication and efficient heat removal, maintaining low operating temperatures, extending equipment life, and enhancing efficiency.

Working Principle

1. Air intake: External air enters the compression chamber via the air inlet.
2. Water lubrication compression: Main and secondary screws rotate and engage, compressing the air. Water fills the screw gaps, providing sealing, cooling, and lubrication—resulting in smoother, more efficient compression with reduced wear.
3. Water separation process: Compressed air, now containing water, is passed through a high-efficiency separator to remove water, producing dry, oil-free air.
4. Water recycling and reuse: Separated water is purified and recycled, minimizing waste and supporting green operation.

Application Fields

• Medical industry: Hospitals, dental clinics—supplying oil-free, non-polluting compressed air for respiratory equipment, surgical tools, and laboratory air supply.
• Food & beverage: Dairy, beverage, bakery—ensures air in direct food contact is oil-free and meets food-grade safety standards.
• Pharmaceutical industry: Drug production, aseptic packaging—clean air for material conveyance, tablet pressing, and spray drying to maintain product purity.
• Electronics manufacturing: Chip and semiconductor production—provides high-purity, oil-free air to prevent contamination of sensitive circuits.
• Precision instrument manufacturing: Spraying, laser cutting—guarantees uniform, pollutant-free air for superior product quality.