Axial Aerofoil Fans

CFW's high-quality axial aerofoil fans are suitable for HVAC and industrial applications and offer sterling reliability and performance.

There are three main aerofoil impeller types, with manually adjustable pitch blades.

Model Impeller Sizes (Ø) Comments


Heavy-duty gravity die-cast aluminium 315-2000 mm
(13 sizes)
Low noise and high efficiency


Light-duty pressure die-castaluminium 400-1250 mm
(6 sizes)


Light-duty glass-reinforced nylon with aluminium hub 400-1120 mm
(5 sizes)
Lightweight and low-cost

Our flagship range is the HDA impeller
which offers high efficiencies, lowest noise levels, and can be used in industrial applications requiring a robust solution, as well as HVAC applications requiring a high-end solution. These impellers are available in right and left-hand configurations and can therefore be combined in series for two-stage high-pressure applications. This heavy duty range of aluminium impellers is cast, machined and assembled at our Cape Town factory. The range includes 13 sizes from Ø315 mm to Ø2000 mm.

The LDA and LDP impellers were developed for light-duty applications, such as the HVAC sector, where initial cost is an important consideration. The LDA impeller range with pressure die cast blades includes six sizes from Ø400 mm to Ø1250 mm, and the LDP impeller range with glass reinforced nylon blades includes five sizes from Ø400 mm to Ø1120 mm.

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Due to our continued efforts to improve product design and performance, CFW reserves the right to alter any product details specified here without notice.