Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China motor driven cow house fan manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price motor driven cow house exhaust fan, motor driven cattle house fan from our factory.Application This type fan have widely used in green house , cow house and factory wherever request the internal air circulate. The hanging fan will increase the indoor air circulation,improve the environment.CONNECT WITH MOTOR DIRECTLYModel       Blade diameter        MM Motor power        KW Wind      m³/h Voltage        V Shape size      mm FJ-900 900 0.55 25000 380 1000x1000x(300 50) FJ-1000 1000 0.55 32000 380 1100x1100x(300 50) FJ-1250 1250 0.75 44000 380 1380x1380x(300 50)