A centrifugal fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling; in boilers and industrial furnaces for ventilation and induced draft; in air conditioning equipment and household appliances for cooling and ventilation; in grain drying and conveying; as a wind source for wind tunnels and for inflating and propelling hovercraft, etc.
A centrifugal fan consists of a casing, main shaft, impeller, bearings, transmission mechanism, and motor.
Casing: Made of robust and reliable steel plate, it can be either integral or semi-open; the semi-open type facilitates maintenance.
Impeller: Consists of blades, a curved front plate, and a flat rear plate.
Rotor: Should be statically and dynamically balanced to ensure smooth rotation and good performance.
Transmission Components: Consists of a main shaft, bearing housing, rolling bearings, and pulleys (or couplings).
Materials: Aluminum centrifugal fan, Stainless steel centrifugal fan, Fiberglass centrifugal fan, Carbon steel centrifugal fan
