Negative pressure fan/ industrial Exhuast Fan/industrial cooling fan/ventilation fan/ FAN DIAMETER :1270(mm) TURNS:450(r/m) AIR VOLUME(M3/H):44500(m3/h) NOISE:60(Db) POWER:1.1(kw) RATING VOLTAGE:380/220(V) WEIGHT:80(Kg) DIMENSION:1.38*1.38*0.4/1.22*1.22*0.4/1.06*1.06*0.4/0.9*0.9*0.4(M) PRODUCT CHARACTERISTICS:The optimal design and construction made by CAD/CAM,with high full pressure,big air volume ,low noise,little energy-lost ,stable running and being well for ages; The louver with pleasing shape can open and closed automatically,having dust-proof and water proof,with its double-function; cool breeze blowing and air draft,it is the best cooling and ventilating product for factories etc. Applications 1.industrial fields;textile,socks/clothes making,glass,molding,rubber,coating,silk-screen printing,toy,electronics,home appliances,shoe making,printing,food stuff,processing,dyeing,laundry and other workshops with high temperature; 2.Civil fields:net bars,stores,supermarkets,mess hall,food markets.