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11 - 13 October 2022 // Nuremberg, Germany

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Exhibitors & Products Chillventa 2018


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Cpro – The impeller of extremes
Ziehl-Abeggs presented “Impeller of extremes – Cpro” is made using the specially developed high-performance composite material ZAmid and combines unique material properties with bionic insights.

Only the development of the high-performance ZAmid composite material made it possible to create the innovative shape of the new Cpro centrifugal fan. The exceptional quality achieved is the result of a one-shot injection moulding process, so it does not have any welded seams or critical connections. The new shape alone produces higher efficiency, enabling performance which saves up to 15 % energy during operation.

With its specifically profiled, three-dimensional blade geometry, the Cpro impeller produces up to 5 dB less tonal noise in use (3 dB = physical halving). This enormous reduction in noise makes living and working in the surroundings more pleasant. Furthermore, less acoustic insulating material is needed – this protects the environment and saves money at the same time.

ZAmid combines the positive properties of both steel and composite material. This in turn is what enabled the realisation of the unique advantages of Cpro.
  • Weight reduction of more than 50% as compared with a steel impeller – this reduces motor bearing loads, guaranteeing longer system lifetimes. Shipping costs are reduced and handling is eased in addition.
  • ZAmid in combination with the Cpro impeller geometry allows tip speeds of up to 70 m/s (60 m/s are customary in the market) - which is only otherwise possible with a steel impeller
  • Cpro can be used, just as with a comparable steel impeller, for operational temperatures from -20°C to + 80°C without any restrictions
  • The impeller is non-corroding and colour-stable

The very good environmental compatibility is another plus point. Cpro ZAmid technology stands for energy savings and CO² reduction right from the start. The reduced energy usage during manufacture is followed by up to 15 % energy which is saved during use. Moreover, the material can be crushed after the end of the life of the impeller and is 100% recyclable, so there is actually no waste whatsoever.

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