Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China 1380mm hammer exhaust fan manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price 1380mm hammer exhaust fan from our factory.Yongsheng Hammer type exhaust fan material all used good quality row material. The fame made from the galvanized sheet or stainless steel material. Have long service life , warranty for 18 months. We have ten years experience on this fan’s manufacture. Our fan all have good quality and easy to install, has sale to lot’s of Country in the world.Hammer Fan FJ1250Fan Size1380*1380*400mmFrameHot galvanized sheet, high anti-corrosive durabilityMotorSiemens motor, Other motor accordingly, CE certificateMotor technical data1.1 Kw     380 V     50 Hz   three phaseMotor RPM1400r/minNoise≤70dbBlade DiameterΦ1250 mmBlade NO.6Blade MaterialMirror face stainless steel, avoid dust accumulationBlade RPM439r/minBalance InstructionBalance test after assembled which can assure steady running and even airflow.ShutterHammer supporting system, shutter can be opened at 90 degree.BeltMitsubishi beltHousingGalvanizedAir flow44000㎥/hCurrent and air flow test.BladesThe blade forming a stamping process, no deformation , no broken , beautiful and durable ,never rust  calibrated by high-accuracy dynamic balance tester ,ensure the stable operation of the fan ,reduce noise and extend service lifeThe belt adopts belt automatic tightening facility to ensure the belt will not loose or dropHammerSwung drop hammers which are made of high quality nylon would guarantee the shutter open and close easily and steadilyBearingbearing adopts imported double-row bearing with special waterproof design, high strength, lower noise, long service life ImpellerThe V-type belt pulley is cast with high intensity aluminum-magnesium alloy ,with light weight and high strength , lower vibration and attractive appearance , eliminate internal stressMotorEquipped with high efficient and energy-saving electrical motor which had passed the National CCC Certification Protection grade :IP55,Insulation grade: Grade FDynamic Balance machine test.Yongsheng Fans were calibrated by advanced computer dynamic balance tester, to achieve smooth operation reduce noise, enhance stability and extend service life.