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DFA Metal Circular Duct Axial Flow Fan

The DFA series is an integrated cylindrical external rotor axial fan with stainless steel blades. Three configurations are available: bare unit, protective grill, and grill + base, covering in-duct, air-outlet and floor-standing ventilation applications.

    parameters

    Model Body Dimensions
    (mm)
    Speed
    (r/min)
    Power
    (W)
    Traffic
    (m³/h)
    Noise
    dB(A)
    voltage
    (V)
    Frequency
    (Hz)
    Horsepower
    (HP)
    DFA100 100 2800 20 140 45 220V 50 0.03 
    DFA150 150 2800 60 600 52 220V 50 0.08
    DFA180 180 2800 70 800 58 220V 50 0.09 
    DFA200 200 2800 80 1050 62 220V 50 0.11 
    DFA250 250 2800 120 1750 65 220V 50 0.16
    DFA300 300 2800 150 2700 68 220V 50 0.2

    CHARACTERISTICS

    1. 1.Equipped with external rotor AC motor embedded inside the impeller for excellent heat dissipation, supporting 24-hour continuous operation.
    2. 2.7-blade stamped stainless steel impeller with factory dynamic balance calibration, low vibration, low noise and uniform airflow.
    3. 3.Integrated metal duct with black powder coating, anti-rust and corrosion-resistant; standard diameter fits common round ventilation ducts.
    4. 4.Three configuration options to flexibly match different installation methods and protection requirements.

    Applicable scenarios

    • · General: Industrial workshop ventilation, warehouse air circulation, equipment cooling, HVAC duct supply/exhaust, drying line ventilation.
    • · Standard (no grill): In-duct series installation, equipment cavity embedding and other fully enclosed impeller conditions.
    • · Standard + Grill: Duct ends, wall air outlets, equipment exterior and other exposed impeller scenarios.
    • · Standard + Grill + Base: Spot air supply, temporary site ventilation, floor-standing use without drilling conditions.

    Advantages

    1. 1.Cylindrical air-gathering structure with low wind resistance and high air pressure, long delivery distance and high ventilation efficiency in ducts.
    2. 2.External rotor motor + stainless steel blades for stable and durable performance, suitable for dusty and normal-temperature industrial environments.
    3. 3.Complete configuration coverage, one-stop selection from in-duct to floor-standing use, matching different project requirements.
    4. 4.Modular design for easy duct connection; removable grill and base for convenient daily cleaning and maintenance.