PM frequency conversion screw air compressor for industry

The permanent magnet frequency conversion single-stage screw air compressor is an efficient, energy-saving industrial air compression solution, widely used in manufacturing and processing. By combining a permanent magnet synchronous motor with advanced inverter control, it delivers stable, high-efficiency air output under varying loads. Its single-stage screw compression principle ensures excellent stability and output.

Features of PM Frequency Conversion Screw Air Compressor

1. Permanent Magnet Synchronous Motor: Utilizes an IPM (interpolated permanent magnet) motor, providing efficient, stable power with no slip and no excitation loss. Superior efficiency at all loads, especially low load.
2. Frequency Conversion Technology: Automatically adjusts motor speed via inverter control for 0–100% stepless adjustment, saving energy and reducing mechanical wear.
3. High Compression Efficiency: Precision screw design with small clearance and optimized tooth shape ensures smooth, efficient compression and stable air output.
4. Full Direct Connection Structure: Embedded one-piece shaft connects the motor and screw rotor directly, eliminating gearbox and belt transmission for higher efficiency, lower noise, and reduced maintenance.
5. UH Grade Magnets: Ensures stable, long-life motor operation even in high temperature and humidity, preventing demagnetization and enhancing reliability.

Working Principle

The air compressor uses a permanent magnet synchronous motor to drive the screw compressor, with real-time motor speed adjustment via frequency conversion control. The single-stage screw compression system efficiently compresses and outputs air to maintain stable pressure and flow. The direct connection design minimizes transmission losses, ensuring optimal energy efficiency.

Application Areas

• Electronics & Electrical Industry: Stable air supply for testing, cleaning, coating, and pneumatic tools in electronics production.
• Building Materials: Supports concrete production, paint spraying, and machinery operation for improved efficiency and stability.
• Chemical Industry: Provides reliable compressed air for pneumatic transfer, reactor control, and chemical processes.
• Food & Beverage: Ensures steady, clean air for packaging, filling, and pneumatic operations for quality and consistency.
• Medical Industry: Supplies pure, continuous air for medical gas systems and equipment.

Advantages & Prospects

• Energy Saving & High Efficiency: Automatic output adjustment reduces energy use and production costs.
• Stable Operation: Advanced control and efficient compression enable long-term, reliable use with minimal downtime.
• Low Maintenance: Direct drive structure eliminates gear/belt wear, reducing service costs.
• Environmental Protection & Low Noise: Quiet operation and controlled emissions suit noise-sensitive and eco-friendly environments.