permanent magnet variable frequency screw air compressor

The permanent magnet frequency conversion single-stage screw air compressor is a highly efficient and energy-saving solution, widely utilized in industries such as electronics, electrical appliances, building materials, and printing. Featuring advanced frequency conversion control technology and a permanent magnet synchronous motor, this compressor ensures stable, reliable compressed air under all load conditions—guaranteeing efficient equipment operation and reduced energy costs.

Features of Permanent Magnet Variable Frequency Screw Air Compressor

1. Variable Frequency Drive System:
   Advanced IPM permanent magnet motor and variable frequency control system support continuous, efficient operation from 0 to 100% load. The system adjusts speed based on demand, reducing energy consumption and improving operational efficiency compared to traditional fixed-frequency compressors.
2. High-efficiency Screw Compression Technology:
   Optimized screw tooth shape and precise clearances significantly increase compression efficiency and linear speed, reducing energy loss. The compressor maintains high efficiency and stable air output even with fluctuating loads.
3. High Reliability & Long Life:
   The permanent magnet motor is slip-free and uses UH-grade magnets, ensuring high performance in harsh environments. With no base wave iron or copper loss, the rotor maintains low energy loss and high stability, even during extended operation.
   
   Compact Structure & Zero Transmission Loss:
   The embedded one-piece shaft direct connection between the motor and screw rotor eliminates gearboxes and belts, eradicating transmission loss and further boosting system reliability and efficiency.
4. Smooth, Infinitely Variable Speed Control:
   Vector heavy-duty main motor rare earth permanent magnet frequency conversion control technology enables stepless speed changes for smooth operation and constant air pressure output under varying loads.

Working Principle

The compressor combines a permanent magnet synchronous motor (IPM) and screw compressor, with speed regulated by a frequency converter. This system adjusts air flow and pressure in real time, maintaining continuous, stable air supply. The motor’s slip-free operation reduces friction and electrical losses, increasing energy efficiency and ensuring stable performance under varying loads. The result is consistent, energy-saving compressed air output without the frequent stops and starts typical of traditional compressors.

Application Fields

• Electronics & Electrical Appliances: Provides accurate, stable air pressure for production lines, supporting equipment such as sprayers and welders.
• Building Materials: Supplies air to mixing, cleaning, grinding, and other machinery, handling large loads efficiently while saving energy.
• Printing Industry: Delivers stable air for pneumatic tools and printing equipment, adjusting output to match demand and optimize energy use.
• Other Industries: Also widely used in food processing, chemicals, pharmaceuticals, and automobile manufacturing—improving productivity, reducing maintenance costs, and supplying clean, stable compressed air.