Axial fan airfoil high efficiency

Engine manufacturers

In engine applications, vibration levels are typically high as the axial fans are often mounted directly on to the crankshaft of the engine. It is important therefore, that the axial fan is as light as possible. Likewise the tip clearance of the fan unit should be larger than the standard 0,5%. In these applications we normally recommend a 2% tip clearance to avoid touching the shroud.

Typically, the materials for this type of application will be a combination of aluminium (AL) hub parts and fan blades in glass reinforced polyamide (PAG). This will secure sturdy design and enable operating temperatures up to 120°C. For unusually high vibration levels we also offer fan blades in a vibration stabilized version of PAG, called PAGST.

Depending on the size requirements, we recommend fan blade types such as 4Z and 5Z. For small units we recommend 3H and 4H.

In applications where there is no room for a shroud, or when inlet conditions are less than ideal, our increasing arc profiles6H and 6Z, secure a higher performance than standard axial blades.

Mobile applications

Our axial fans are designed to comply with TIER IV regulations in the USA and the Stage IIIB regulations in the EU. The fan blade PressureMAX is specifically designed for these regulations.

Stationary applications

Stationary equipment is typically compressors and generator sets often used as emergency equipment either at hospitals, mines or off-shore sites.
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