screw air compressor with single stage permanent magnet VFD

The permanent magnet frequency conversion single-stage screw air compressor is an advanced, energy-efficient solution designed to deliver high-quality compressed air for modern industry. By combining permanent magnet frequency conversion technology with a high-efficiency single-stage screw system, it ensures stable air output and reduced energy consumption. Its intelligent adjustment capabilities enable it to match real-time air demand, optimizing efficiency and lowering operating costs compared to traditional industrial frequency compressors.

Features of Screw Air Compressor

1. Strong air output capacity: Delivers up to 15.0 m³/min, providing ample compressed air for high-intensity environments.
2. Stable working pressure: Rated at 0.8 MPa, suitable for diverse industrial applications and reliable continuous operation.
3. High-efficiency screw mainframe: Optimized tooth shape and precision-machined clearances boost compression efficiency, reduce leakage, and ensure constant efficiency across 0–100% load for high reliability and longevity.
4. Advanced Permanent Magnet Synchronous Motor (IPM): Features no-slip, no electric excitation design for lower iron and copper losses. UH-class high-performance permanent magnets resist demagnetization in harsh, high-temperature, and high-humidity conditions, ensuring durable, high performance.
5. Intelligent permanent magnet frequency conversion control: Built-in vector heavy-duty frequency control allows stepless speed adjustment, enabling the compressor to automatically match air volume demand, stabilize pressure, and minimize energy waste.
6. 100% direct connection transmission: The motor and screw rotor share an integrated shaft, eliminating gearboxes and belts for zero mechanical loss, 100% transmission efficiency, compact structure, reduced maintenance, and enhanced reliability.

Working Principle

1. Air intake: Ambient air passes through the intake filter into the screw rotor cavity.
2. Screw compression: Male and female rotors mesh precisely, compressing the air in the spiral groove, decreasing volume and increasing pressure.
3. Permanent magnet frequency conversion adjustment: The frequency control system adjusts motor speed in real time to precisely match air volume and pressure needs, cutting energy waste.
4. Cooling and exhaust: High-temperature compressed air is cooled and then delivered to downstream equipment or storage, ensuring a stable, efficient air supply.

The compressor can intelligently adjust from 0–100% load to minimize no-load energy consumption and maintain high energy efficiency at all times.

Application Areas

• Automobile manufacturing: Body painting, parts processing, assembly, and pneumatic tool drive.
• Machining: Stable air for CNC machines, metal processing, pneumatic fixtures, and more.
• Electronic manufacturing: Clean, oil-free air for electronic component production and clean rooms.
• Food and beverage: Packaging, filling, transport, and other sanitary production processes.
• Chemical industry: Gas transport, reaction air sources, and meeting safety requirements in chemical processes.
• Medical equipment: Oxygen supply, surgical instrument drive, and pneumatic systems for medical environments.
• Textile industry: Pneumatic control, air jet looms, pneumatic cutting, and more.