Do you know what makes corrosion-resistant axial fans different?

To help you better understand, let’s first analyze the differences between corrosion-resistant axial fans and standard axial fans in terms of their construction. In contrast, the former has only one air inlet and one air outlet, belonging to the single-inlet configuration. The impeller is primarily welded together from the front plate, hub, rear plate, and blades. The latter has two inlets and features a dual-impeller design. In fact, the impeller structure of corrosion-resistant axial flow fans is more complex, consisting mainly of two front discs and an intermediate disc, with the impeller blades welded to the two intermediate discs. Let’s examine their two main characteristics. The former primarily uses a cantilever structure, offering flexible transmission options. However, this design places strict demands on the bearings. Specifically, in direct-drive configurations, the propeller directly connected to the corrosion-resistant axial fan motor must not be too large, and couplings cannot be used for the connection. With a single air inlet, higher pressure can be achieved depending on the specific impeller design. Therefore, in practical applications, these fans are primarily used in high-pressure working environments. However, since corrosion-resistant axial flow fans employ a double-inlet design, they can deliver a greater airflow volume. Additionally, they employ a double-support structure that offers excellent operational reliability, safety, and stability. However, since the shaft passing through the impeller must be supported by bearing housings on both sides, this can have a certain impact on the air inlet. In contrast, corrosion-resistant axial fans have a wide range of applications and are suitable for a variety of operating conditions. Structurally, corrosion-resistant axial fans are primarily used for high-airflow clean air applications commonly found in air conditioning systems.