1. Industrial fan / Poultry cooling fan 1). are used as Factory / Poultry/ Greenhouse / Livestock Euipments 2). energy-saving, increasing the humidity, reducing the dust 3). large wind output , strong resistance to corrosion, environment-friendly 2. Description: 1. Shutter: can ensure the shutter open and close autimatically, and makes it dustproof, waterproof in centrifugal industrial ventilation/exhaust fans. 2. The inner steel fitting install in the flange, increasing the security avoid the stretching change when the system operates. 3. Adopt the injection molded stainless steel blade, no broken, no distortion, aesthetic and durable 4. Motor: high efficiency and energy-saving motor . 5. Belt: autimatic tensioner is adopted in industrial ventilation / exhaust fans to prevent the belt loosing and dropping off. 3. The main technical parameters: modelSize(mm)(L*H*W)Fan diam(mm)fan rotation(r/min)Capacity(m3/h)Noise[db(A)]Power(KW)Voltage(V)Weight(Kg)KEF-13801380*1380*400127045045000≤631.1380/22080KEF-12201220*1220*400111048038000≤600.75380/22060KEF-10601060*1060*40095050033000≤560.55380/22055KEF-900900*900*40079055025500≤550.37380/22050KEF-800800*800*40070060020000≤550.37380/22045KEF-680680*680*320600140025500≤700.75380/22023KEF-580580*580*320500140020000≤680.55380/22021KEF-480480*480*320400140015000≤660.37380/22016 4. Application:1). Suitable for textile workshop, clothing factory, chemical plants, hardware factory, plastic factory, toy factory, shoe-making factory, wiring factory, machinery factory, leather factory and so on.2). Larger parking area, supermarket, waiting -room, Internet bar, playroom.3). Fowl feed center, greenhouse, flower plantation and so on.