An external rotor axial fan is a type of fan that is commonly used in ventilation, cooling, and air-moving applications. It consists of an external rotor that rotates around a stationary shaft and an axial fan that generates a flow of air perpendicular to the axis of rotation.

The primary role of an external rotor axial fan is to move air or other gases from one location to another. They are commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems, as well as in a variety of industrial and commercial applications where air flow is needed.

One of the main advantages of external rotor axial fans is their compact design, which makes them easy to install and suitable for use in confined spaces. They are also typically more efficient than other types of fans, which results in lower energy consumption and operating reduced costs.

Another advantage of external rotor axial fans is their high airflow capacity, which makes them ideal for applications that require large volumes of air to be moved. They are also capable of generating high static pressures, which allows them to overcome resistance in ductwork and other types of air handling systems.

In conclusion, the role of an external rotor axial fan is to move air or other gases from one location to another in a variety of applications. Their compact design, high efficiency, and high airflow capacity make them an attractive option for many industries, and their use can help to improve air quality, reduce energy consumption, and increase efficiency and reliability in air-moving operations.

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