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Rosenberg Primed For Rail Fan Refurbishments

As the world’s largest supplier of motorised impellers to the rail industry, Rosenberg are clearly doing something right when it comes to developing air movement products for rail applications. Their range of backward curved motorised impellers are the perfect fit for supply/evaporator or exhaust fans in railway passenger or driver cabins. Available in two variants, the DKHM and DKHR models offer optimal performance with no drive belt and no external motor or shaft. Available in sizes 225 to 630mm, they can provide air movement up to 15 300 m...


B Wheel – Backward Curved Impeller from Rosenberg

Rosenberg’s new LRHF-B impeller is a backward-curved seven-blade aluminium fan wheel especially designed for demanding air-movement tasks with low noise and high efficiency requirements.  The new “B-Wheel” design can increase efficiency by nearly 6% and reduce noise by three decibels compared to the standard eight-blade design, depending on the application. On the “B-Wheel” impeller, the blade diameter is smaller than the outside diameter of the cover and support plate, which acts as a rotating outlet diffuser. This new wheel geom...