dual frequency conversion twin screw air compressor which is low air pressure

The dual frequency conversion twin screw air compressor utilizes permanent magnet dual frequency conversion drive to intelligently regulate both the motor and cooling fan speeds based on real-time air demand. This advanced system delivers precise air supply control, optimized energy consumption, and ensures high-quality compressed air with a high-capacity oil separation system for extremely low oil content.

Technical Parameters

• Pressure range: 0.2 MPa to 0.5 MPa
• Flow rate range: 4.6 m³/min to 65 m³/min
• Driving mode: Permanent magnet dual frequency conversion

Features of Dual Frequency Conversion Twin Screw Air Compressor

1. High efficiency & energy saving: The permanent magnet dual frequency conversion drive system significantly reduces energy consumption and eliminates inefficient operation.
2. Extra-large flow range: Suitable for low-pressure, high-volume demand with a flow rate range of 4.6–65 m³/min for diverse industries.
3. Low pressure optimization: Specially engineered for low pressure scenarios, preventing energy waste prevalent in traditional compressors and ensuring efficient operation.
4. Intelligent control: The frequency conversion system precisely controls motor and fan speeds for stable air supply and maximum energy savings.
5. Efficient oil separation: Equipped with a large-capacity oil separator for clean compressed air, minimizing downstream treatment costs.
6. Stable & durable: High-quality bearings and a low-load design ensure long-term stable operation—service life exceeds 100,000 hours.

Working Principle

This compressor uses twin-screw compression, where the sun and yin rotors intermesh to form sealed volumes. As the rotors turn, air is compressed to the required pressure. Multi-point oil injection provides cooling, lubrication, and sealing, enhancing compression efficiency and reducing wear.

• Frequency conversion motor drive: The main motor’s speed is dynamically adjusted based on air demand, avoiding no-load operation and boosting efficiency.
• Frequency conversion fan control: Cooling fan speed is intelligently regulated based on temperature, reducing both energy use and noise.

Compared to traditional fixed-speed compressors, this system reduces current surges, start-up energy consumption, and unnecessary power loss—especially under partial load.

Application Areas

• Textile industry: Airflow spinning, air jet looms, textile printing, and dyeing—low-pressure pneumatic equipment.
• Wood processing: Powers woodworking machinery, pneumatic tools, and vacuum adsorption equipment.
• Chemical industry: Suitable for low-pressure pneumatic conveying, spraying, mixing, and related processes.
• Packaging industry: Supports packaging inflators in food, pharmaceutical, and plastics sectors.
• Water treatment industry: Aeration tanks, sewage treatment, and other low-pressure air supply systems.