PM VFD two stage screw air compressor for automotive industry

The permanent magnet frequency conversion two-stage screw air compressor not only provides a stable air source but also enables automatic management via an intelligent control system. Widely used in manufacturing, chemical, food processing, and many other industries, it delivers efficiency, reliability, and energy savings for modern industrial needs.

Features of Permanent Magnet Frequency Conversion Two-Stage Screw Air Compressor

1. High-efficiency two-stage compression system:
   • Custom two-stage screw mainframe boosts volumetric and adiabatic efficiency, increasing air output by up to 15% under the same power compared to single-stage designs.
   • Ensures high efficiency and stable, low-energy operation.
2. Permanent magnet synchronous motor (IP65):
   • Totally enclosed, oil-cooled motor offers high efficiency, long service life, and IP65 protection for operation in harsh environments.
   • Dustproof and moisture-proof for reliable, stable performance.
3. Coaxial integrated design:
   • Mainframe and motor are coaxially integrated, eliminating mechanical transmission losses and achieving 100% efficiency.
   • Significantly lowers operating noise and enhances stability.
4. Flow and constant pressure control:
   • Dynamic airflow/pressure adjustment according to demand keeps pressure fluctuation within ±0.01 MPa for precise air supply and reduced energy waste.
5. Intelligent energy-saving control system:
   • Real-time dynamic display, automatic parameter adjustment, and unattended operation improve productivity and reduce management costs.
6. Remarkable energy-saving effect:
   • Two-stage compression reduces return leakage, improves yield, and delivers up to 15% more air volume than single-stage models for the same power.
7. Air volume and pressure:
   • Gas volume: 11.1 m³/min; Working pressure: 0.8 MPa — suitable for a variety of industrial applications, ensuring stable supply.

Working Principle

1. Air intake and primary compression: Air enters the first stage chamber, is compressed by screw rotation, and is cooled by oil to prevent overheating.
2. Second stage compression and equal pressure compression: Air moves to the second stage, is cooled by oil injection, and undergoes isobaric compression to further reduce energy consumption.
3. Air pressure output and precise control: Each stage increases pressure, with precise control systems maintaining stable output and pressure for continuous production.
4. Intelligent monitoring and adjustment: Real-time monitoring and automatic adjustment of airflow, pressure, and motor load optimize energy efficiency and extend equipment life.

Application Areas

• Manufacturing: Air-powered tools, automated lines, and spray equipment for efficient production.
• Chemical industry: Gas transport, equipment cleaning, and operations requiring high flow/pressure.
• Food and beverage industry: Clean gas for processing, filling, and packaging to ensure hygiene and accuracy.
• Automotive industry: Pneumatic tools, cleaning, spraying, and productivity improvements.
• Mining & metallurgy: Stable high-pressure air for ore processing, equipment cooling, and more.
• Pharmaceutical industry: Clean gas supply for sterile, efficient production environments.
• Electronics industry: Pneumatic control, cleaning, and support for precision manufacturing.