High efficiency axial fan

Through work done in Voiths research laboratory, it has been possible to optimize the profile of the wings, which gives a very high efficiency. In the medium pressure area efficiencies up to 90%, and in high pressure areas 85% can be obtained. Taking into consideration todays high energy prices, these are very important factors when the pay back is considered.

The technical design when manufacturing the fan housing and impellers gives the best results with regard to leakage losses between impeller and inlet cone.

In that way it is possible to keep a high efficiency.

A-drive (direct drive)

C-drive (belt drive)

The complete unit with central tube, cables - and belt covers have an aerodynamic optimum design.

With belt driven fans, it is possible as accessories instead of the cover which is located on the outlet of the central tube, to mount a rear piece which will be formed as an inside diffusor. In that way it is possible to regain part of the static pressure.

A special inlet cone can be mounted on fans with open inlet, and the inlet loss will then be reduced.

A special designed cover over the fan wheel hub ensures a best possible inlet air flow.