oil free screw air compressor with variable frequency start

This oil-free screw air compressor integrates advanced technologies such as permanent magnet motors, frequency conversion speed control, and direct drive. It is engineered for energy savings, high efficiency, and low noise operation, making it ideal for industries with strict air quality and environmental requirements.

Features of Oil-Free Screw Air Compressor

1. Oil-free compression, pure air: Utilizes oil-free screw compression technology without lubricating oil, eliminating oil contamination and delivering clean, pure compressed air that meets the demanding standards of the food, pharmaceutical, and electronics industries.
2. High-efficiency permanent magnet motor, energy saving: Equipped with a permanent magnet synchronous motor (PMSM) for 5%-15% higher energy efficiency compared to traditional motors, resulting in lower power consumption and reduced operating costs.
3. Ultra-quiet operation: Features a silent box design and advanced noise reduction technologies, with optimized airflow channels to keep operating noise ≤ 65dB(A), suitable for noise-sensitive environments like laboratories, hospitals, and electronics workshops.
4. Directly connected integrated shaft drive: Direct-drive transmission eliminates belts and gears, minimizing energy loss and maintenance costs while extending service life and maximizing transmission efficiency.
5. High-efficiency air-cooled cooling system: Air-cooled design ensures stable operation even in high temperature and humidity, removing the need for water cooling systems and reducing both maintenance and water consumption.
6. Frequency conversion start, intelligent adjustment: Inverter-controlled motor speed automatically adjusts to real-time air demand, providing air on demand, avoiding frequent start/stop cycles, reducing power grid impact, and saving 20%-50% more energy.

Working Principle

1. Air intake: Ambient air enters through the inlet and passes initial filtration before reaching the screw compression chamber.
2. Screw compression: Oil-free screw rotors compress air without introducing oil, maintaining air purity throughout the process.
3. Cooling: Air and compressor are cooled using an efficient air-cooled system to ensure stable operation.
4. Frequency conversion speed regulation: Frequency converter adjusts motor speed based on air demand for constant pressure output and reduced energy use.
5. Clean air output: The compressed air is further cooled, dried, and filtered before being delivered to the point of use as pure, oil-free air.

Application Areas

• Food & beverage industry: Ensures oil-free, contaminant-free air for food processing, packaging, and aeration processes.
• Pharmaceutical industry: Suitable for drug manufacturing, transport, and sterile environments, compliant with GMP standards.
• Electronics industry: Delivers ultra-clean air for chip manufacturing and precision assembly.
• Medical industry: Supplies oil-free air for hospital ventilators, operating rooms, and laboratories.
• Spraying industry: Prevents oil contamination in coatings, ensuring uniform, high-quality finishes.
• Laboratory & scientific research: Provides stable, oil-free compressed air for precision instruments and research experiments.