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Gas circulating fan:  

　　Series W4-80,W4-78 and W4-50 high temperature fans are equiped for hydrogen cover annealing furnace. Series W9-55 high temperature fans are specially equiped for cover annealing furnace of cold-rolled steel plate.

Features:

　　The products are used for forced gas directional flow in furnace. Strengthen heat exchanging in furnace,  evenly improve temperature, improve products quality of heat treatment, and reduce the period of heat treatment. The series products can be used for annealing of cold-rolled steel plate, steel band, wire material, copper base alloy and aluminum-platinum alloy etc. The fans are centrifugal type without outer casings.The Extended shaft is used upwards.  Type A  is the driving way. Running temperature can reach 750℃, max. running temperature can reach 850℃.