Hürner Funken produces several types of industrial ventilators.
Due to the usage of plastics for the ventilator chassis, the ventilators aren’t that resistant against strong environmental influences - Especially the resistance against UV-light is a challenging topic.
The benefit of using concrete is the natural resistance against normal environmental influences. A special concrete formulation combined with special and selected raw materials allows a sufficient resistance against appearing acids and other aggressive materials. Further benefits are the noise and vibration damping of the concrete shell. The special developed Quantz-Concrete is fluent and thus any shape and geometry can be generated.
Also the mold technology was investigated and optimized for the production process.
Two technologies are available:
a) traditional casting of 7mm thick casing shells with double sided molds
b) 3D rotation of the material in molds.
Both methods are leading to successful and satisfying results.