This profile blade has been developed to provide high pressure under high air flow volume. The fan impellers equipped with these blades reminds by its shape the high pressure turbine impeller but axial fan impeller. Liner rotation speed range up to 95m/s. This blade impeller is dedicated to most adverse working conditions. These profile impellers successfully substitute fan impellers made of stainless steel. Life time of fan coolers is substantially extended thanks to impeller low weight and due to price-to-performance ratio that makes is best option to stainless steel solutions.