PM frequency conversion two stage screw air compressor

The permanent magnet frequency conversion two-stage screw air compressor is a highly efficient and energy-saving solution widely used as a reliable air source in industrial production. Combining advanced permanent magnet synchronous motor technology with two-stage screw compression, it outperforms traditional single-stage compressors in both energy efficiency and operational stability, making it ideal for industries with demanding energy requirements.

Features of PM Frequency Conversion Two-Stage Screw Air Compressor

1. High Efficiency: The custom two-stage compression screw mainframe significantly reduces energy consumption and maintains high efficiency, even in high-pressure environments.
2. Permanent Magnet Synchronous Motor: Fully enclosed, oil-cooled motor with IP65 protection ensures safety, durability, and enhanced energy utilization.
3. Integrated Design: Coaxial integration of the mainframe and motor eliminates mechanical transmission loss, achieving 100% transmission efficiency and reducing noise.
4. Precise Control: Equipped with advanced flow and constant pressure control, the compressor keeps pressure fluctuations within ±0.01MPa for stable operation.
5. Intelligent Control System: Real-time monitoring and dynamic display of operational parameters allow for continuous, unattended, and stable operation.
6. Energy-Saving Effect: Two-stage compression technology increases air output by 15% and achieves up to 15% energy savings compared to traditional designs.
7. Air Volume: 7.0 m³/min, providing sufficient and stable air supply for medium and high-load applications.
8. Pressure: 0.8 MPa, suitable for the majority of industrial scenarios requiring reliable air pressure support.

Working Principle

The compressor operates on a two-stage screw compression system: air first enters the initial compression chamber and is compressed, causing a temperature rise. An enhanced oil injection cooling system then lowers the air temperature before it enters the second compression chamber for further compression. The reduced compression ratio per stage lowers power consumption and enhances both compression and volumetric efficiency. The permanent magnet synchronous motor, controlled by frequency conversion technology, adjusts motor speed based on real-time air demand, ensuring optimal performance under varying loads.

Application Fields

• Manufacturing Industry: Supplies stable air for precision machining, automation lines, and equipment requiring high source stability.
• Construction Industry: Provides high-pressure air for construction machinery and pneumatic tools.
• Food & Beverage Industry: Supplies clean, oil-free air for food processing, packaging, and pneumatic operations.
• Pharmaceutical Industry: Delivers oil-free compressed air for hospitals, pharmaceutical production, and sensitive applications.
• Metallurgy & Chemical Industry: Drives and cleans production equipment with reliable compressed air.
• Energy & Electric Power Industry: Supplies air for pneumatic valves, control systems, and other energy equipment.