
High Speed Insulated Spiral Sectional Aluminum Alloy Roller Shutters Door. High Wind Resistance: Class 12 wind resistance rating ensures stability in severe weather conditions. Fast Operation Speed: Opening speed adjustable from 0.8 to 2.5 meters per second for high efficiency. Energy Efficient Design: 43mm thick panel with polyurethane foam filling provides excellent insulation. Durable Aluminum Construction: Made of 5052H32 aluminum alloy with fluorocarbon roll coating for 20-year fade resistance. Advanced Safety System: Equipped with infrared sensors, pressure airbag, and warning lights for accident prevention. Quiet and Smooth Operation: Double spiral turbo guide rails eliminate friction and noise during movement. Long Lifespan: Designed for 150,000 cycles per year ensuring long-term reliability. Customizable Options: Available in customized colors and dimensions to meet specific requirements.