frequency conversion screw air compressor with IPM motor

The permanent magnet inverter single-stage screw air compressor is an advanced compressed air solution combining energy efficiency, reliability, and long service life. With an air volume of 9.2 m³/min and an operating pressure of 0.8 MPa, it is ideally suited for industrial environments that require efficient and stable air supply. Thanks to its inverter drive and permanent magnet motor technology, the compressor intelligently adapts to load changes, significantly improving energy efficiency and reducing waste.

Features of Frequency Conversion Screw Air Compressor

1. Frequency conversion regulation and energy saving:
   • Advanced permanent magnet frequency conversion mainframe enables stepless speed adjustment from 0–100% load.
   • Precisely controls motor output to reduce energy consumption and operating costs, optimizing efficiency even under partial load.
2. High quality screw design & efficient compression:
   • Optimized screw tooth design delivers excellent compression efficiency and low energy consumption.
   • Small screw clearance reduces air leakage and losses, maintaining stable output even at low load.
3. Permanent magnet motor & high-efficiency transmission:
   • IPM permanent magnet motor features no slip/electric excitation, high efficiency, and UH-grade magnets for reliable, long-term operation in harsh environments.
   • Embedded one-piece shaft direct connection eliminates gearbox and belt losses, ensuring 100% transmission efficiency.
4. Intelligent frequency conversion control & precise regulation:
   • Vector heavy-duty and rare-earth permanent magnet frequency control enables stepless adjustment and smooth, vibration-free operation.
   • Maintains constant pressure vector mode for accurate air pressure and reduced fluctuations.

Working Principle

Air enters the screw compression chamber via the inlet. Driven by the permanent magnet motor, the screw continuously compresses the air, which is then transferred to a storage tank or directly to end-use equipment. Unlike traditional compressors, the motor speed is regulated by frequency conversion, allowing real-time adjustment according to pressure sensor feedback. This ensures precise, constant air pressure output. The direct connection between motor and screw minimizes mechanical losses, while the permanent magnet motor offers high stability and efficiency without additional excitation.

Application Areas

• Manufacturing industry: Machining, assembly lines, automation equipment, and other production environments requiring high air quality and pressure.
• Precision instruments & electronics: Reliable, clean compressed air for electronic component production, assembly, and testing.
• Chemical & pharmaceutical: Stable air supply for control valves, delivery systems, and automated lines, with flexible adjustment for load fluctuations.
• Food & beverage industry: Meets strict air cleanliness standards for food and beverage production, ensuring health and safety.
• Automobile & transportation: High-efficiency, low-energy compressed air for manufacturing, maintenance, painting, and automated equipment.
• Environmental protection & energy: Essential for sewage and exhaust gas treatment, offering high efficiency, long life, and energy savings.