Dynair AxB Super-silent acoustic cabinet fans

The AxB series represent an easy and inexpensive solution for the installation of centrifugal fans in ducted systems. They are designed for a practical and quick installation into rectangular ducted systems. The series features models with single-, or three -phase motors, with 2,4, or even 6 poles. The completely speed controllable external rotor motor is cooled by the airflow itself and does not exceed the dimensions of the fan casing. The impeller is a single inlet backward curved one, for models 4×2, 5×25 and 5×3 and forward curved for every other model. The casing is flanged at both ends for simple duct fitting. The electrical connections are secured in a suitable box placed outside the casing for easy connection and accessibility. This series is suitable to convey clean air from -10°C to +60°C.

This product complies with the European Union’s ecodesign directive.
ErP Directive compliant fans




  • Casing made of galvanized steel sheet, with connecting flanges for standard-sized ducts.
  • Single-, or three-phase extrnal rotor motors, with IP44 grade ingress protection, and class F or B insulation, featuring internal thermal protection.
  • All motors suitable for speed control.
  • Backward curved impellers for models 4×2, 5×25 and 5×3.
  • Forward curved impellers for models 6×3, 6×35 and 7×4.
  • All electric connections in a box, made out of self-extinguishing techno-polymer, with IP55 protection, placed outside the casing.


  • Speed regulators
  • Silencers
  • Flexible noise-cancelling connectors

For further details, feel free to contact KOMPEL Kft.