In the form of the AxiBlade, fan and motor specialist ebm-papst has developed a new generation of axial fans used in evaporators, condensers and heat exchangers in ventilation, refrigeration and air conditioning systems. The AxiBlade concept is based on a modular system. This comprises fan housings of varying heights with an aerodynamically optimized inlet ring. These are complemented by profiled impeller geometry and winglets for maximum efficiency. The impellers have been designed for the various motors they are able to be combined with, which increases efficiency and reduces running noise.