Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China 1000mm hammer exhaust fan manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price 40 inch hammer exhaust fan from our factory. Hammer Fan FJ900Fan size1000mm×1000mm×400mmFrameHot galvanized sheet, high anti-corrosive durabilityMotorSiemens motor, Other motor accordingly, CE certificateMotor technical data0.75 Kw     380 V     50 Hz   three phaseMotor RPM1400r/minNoise≤70dbBlade diameterΦ900mmBlade No6Blade materialMirror face stainless steel, avoid dust accumulationBlade RPM600r/minBlade instructionBalance test after assembled which can assure steady running and even airflow.ShutterHammer supporting system, shutter can be opened at 90 degree.beltMitsubishi beltHousingGalvanizedAirflow25000㎥/h