Germany NORD motor Aluminum Alloy Hub Long Life Span Large Coverage Area Place of Origin: China Certificate: CE MOQ: 1PC Unit Price:$2000 to $2500 Delivery: Within 8 days after order confirmationSIYI HVLS Fan is "High Volume Low Speed" fan. It's low noise, stable, large coverage area, energy saving and maintenance free. The blade is our own design. The core part like motor and VFD are "Nord" and "REXROTH" brand, which are both imported from German. SIYI HVLS large ceiling fans are used in large facilities, warehouses, distribution centers, farms, large retail stores, sports arenas, stations, airports and other large buildings, and become an ideal choice for ventilation, cooling and dehumidification of large indoor space. Detailed SpecificationsModelSYD48Fan Diameter3.8M (12FT)Airfoil MaterialAluminum AlloyAirfoil FinishesPlastic SprayingWeight98KGHeight1.1M (3.3FT)Number of Airfoils6PCSController includedYesVoltage220V/380V/415VFrequency50HZ/60HZRPM(min/max)20/55RPMPower1.5KWCoverage area700M²Warranty3YearsProtectionIP55Our Cases