Features of Super Mute Galvanized Sheet Stainless Steel Highest Efficiency Suction Fan-TSFJ Model TSFJ105A Dimension 1380*1380*400 AirFlow Rate(m3/h) 44500 Power(kw) 1.1 Voltage(V) 380 Fan Blade Speed (r/min) 427 FanBlade Diameter(mm) 1270 Noise (dB) 65 OuterFarme Materials Galvanized Sheet FanBlade Materials Stainless Steel Weight(kg) 85 1 About product The 6-blade propeller is made of aluminium /magnesium alloy.