dual frequency conversion twin screw air compressor

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

The single-stage twin-screw dual frequency conversion air compressor is a high-efficiency and energy-saving equipment designed for low-pressure working conditions and is suitable for scenarios where the pressure demand is 0.2MPa~0.5MPa.

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Description

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.