Specification: ModelBlade diameterRotational speed of fanRotational speed of motorAir volumeTotal pressureNoisePowerRated voltageHeightWidthThicknessXLL-13801250mm439rpm1400rpm44000 m³/h80 pa≤701.1KW380V1380mm1380mm450mm Product features 1. Reasonable cone designing, low noise, big air flow, strong ventilation, lowoperating cost; 2. Imported bearing, high-strength, low noise, durable 3. Using air downstream principle, PVC shutter or aluminum shutter, antioxidant, light weight, no distortion, open and close sweetly, prevent backflow of air, 4. High-strength more high-gluten strength aluminum-magnesium alloy wheel, light weight, high strength, toughness good 5. 6 pieces stainless steel blades, no distortion, and no breaking, aesthetic durability. 6. There are twotypes of cone fans, slant wall type, upright wall type, could satisfyvarieties need of different customers. 7. The high efficient and energy-saving motor passed the national 3C certification. Also protection class:IP55, insulation class: F grade. Contact: Ben scofield