Bifurcated Fan vs Axial Fan: What Is the Difference?
A bifurcated axial fan is an axial fan with a split (bifurcated) housing that protects the motor from the airstream. An axial fan moves air parallel to the fan shaft. Both types are axial flow fans, but the bifurcated design adds a housing that separates the motor from the air path.
How the Two Designs Differ
A standard axial fan places the motor directly in the airflow. A bifurcated fan places the motor outside the airflow, inside a separate compartment. Because of this layout, a bifurcated fan can handle hot, dusty, or corrosive air without exposing the motor to it.
According to Beatson, bifurcated fans often require less maintenance than standard axial fans and can have a longer lifespan, since the motor is protected from extreme conditions. This supports energy efficiency in industrial systems.
Comparison
| Feature | Standard Axial Fan | Bifurcated Axial Fan |
|---|---|---|
| Airflow direction | Parallel to shaft | Parallel to shaft |
| Motor position | In the airflow | Outside the airflow |
| Protection from hot or dusty air | Limited | Higher |
| Typical maintenance | Standard | Often lower |
Applications
Standard axial fans suit general ventilation, cooling, and lower-pressure duties. Bifurcated axial fans suit industrial exhaust, process air, and environments where the air carries heat, dust, or corrosive gases. Centrifugal fans are better suited to higher pressures and airflow volumes, while axial propeller fans suit lower volumes and pressures.
Thinvent Products
Thinvent manufactures industrial computers, mini PCs, thin clients, and all-in-one PCs. The Thinvent range does not include fans. For industrial computing hardware installed in demanding environments, the Thinvent® Industrial PC IPC5 and Thinvent® Industrial PC IPC3 are available with Intel® Core™ processors.
