Axial fan 1,Low power consumption 2,Long durability 3,High reliability 4,Low maintenance Model:DM1380 50''Fan size1380mm×1380mm×450mmAirflow43170m³/hFrame Hot galvanized sheet, high anti-corrosive durability, zinc thickness 180g/m2Frame thicknessTop and bottom frame sheet is 1mm; the left and right sheet is 0.8mmMotor Siemens motor, IP 55Motor techenical data1.1Kw 380 V 50/60 Hz three phase 1.1Kw ...