F4-72 Centrifugal Ventilation Fan

The 4-72 series centrifugal fan is a high-efficiency and energy-saving centrifugal fan. Its excellent aerodynamic performance is achieved through the use of airfoil-type blades, a curved impeller front plate, and a conical inlet collector. This design enables stable performance and has been widely applied in China’s industrial development for many years.

The fan is available in four transmission types: A, B, C, and D. Type A adopts a direct drive structure, where the impeller is directly connected to the motor. Type B uses a belt drive with the pulley located between two bearings. Type C uses a belt drive with the pulley installed outside the bearing in a cantilever arrangement. Type D uses a coupling to connect the impeller and the motor.