PM variable frequency screw air compressor for energy

The permanent magnet inverter single-stage screw air compressor offers outstanding energy efficiency and high reliability, making it a preferred air source in numerous industrial sectors. With an air volume of 7.0 m³/min and an operating pressure of 0.8 MPa, this compressor is designed for high efficiency, energy savings, and long service life. Compared to traditional compressors, it delivers superior compression efficiency and reduced energy consumption, meeting the modern industry’s need for high performance and efficiency.

Features of PM Variable Frequency Screw Air Compressor

1. Frequency conversion control system:
   • Equipped with a permanent magnet frequency conversion control system that combines a permanent magnet motor and advanced frequency conversion technology.
   • Flexibly adjusts working speed based on actual load demand, saving energy and reducing operational costs.
2. Screw tooth shape and compression efficiency:
   • High-precision screw tooth design ensures optimal linear speed and compression efficiency.
   • Small gap design minimizes energy loss, further enhancing overall performance.
3. Permanent magnet motor and direct connection structure:
   • Uses IPM permanent magnet motor with no slip and no electric excitation, minimizing iron and copper losses during operation.
   • Directly connects the motor and screw rotor via an embedded one-piece shaft, eliminating transmission losses from gearboxes and belts for 100% transmission efficiency and more efficient operation.
4. High efficiency and precise regulation:
   • Infinitely adjustable speed regulation within 0–100% load range, maintaining constant pressure and high efficiency even under large load fluctuations.
5. Resistant to harsh environments:
   • UH-grade magnetic steel ensures stable operation in high temperature and humidity, preventing demagnetization and extending equipment life.

Working Principle

The compressor operates based on screw compression technology, with the core component being a screw rotor driven by a permanent magnet motor. The frequency conversion system adjusts the motor speed according to gas demand, automatically regulating power output. Air enters the toothed compression chamber, where it is gradually compressed to the required pressure and discharged. The direct connection between motor and screw rotor eliminates gearbox and belt losses, ensuring efficient power transfer and slip-free operation for maximum efficiency.

Application Areas

• Manufacturing: Provides stable compressed air for production lines in automotive, machining, and plastic processing industries requiring high-precision and stable supply.
• Precision instruments & electronic equipment: Delivers clean, stable air for electronic component production and other demanding applications.
• Chemical industry: Supplies large volumes of compressed air for equipment operation and control, especially where energy savings and high efficiency are critical.
• Food & pharmaceutical industry: Meets strict air quality requirements with high efficiency and stable operation, supporting safety and quality standards.
• Energy & environmental protection: Ensures efficient, reliable compressed air for power and environmental protection equipment, meeting rigorous energy efficiency and sustainability standards.