Wholesale Price Chinese High Speed Spiral Door/Turbine Roller Shutter Door

Wholesale Price Chinese High Speed Spiral Door/Turbine Roller Shutter Door. High Speed Operation: Speed ranges from 0.8 to 2.5 meters per second for efficient logistics channels. Customized Color Options: Available in customized colors to match specific project requirements. Wind Resistance Level 12: Withstands wind pressure up to 3.5kPa, meeting national standard level 9-12. Energy Saving Design: Insulated, sealed, and energy-saving features prevent air convection and weather intrusion. Long Lifespan: Durable design supports up to 150,000 operations per year. Safety Protection System: Equipped with infrared sensors, pressure airbags, and safety light curtains. Premium Material Construction: Aluminum alloy 5052H32 with polyurethane foam filling and fluorocarbon coating. Flexible Opening Methods: Supports motion sensors, Bluetooth, remote control, and pull-cord switches.