What are the types of high-speed doors? High-speed doors generally refer to fast-rolling shutter doors, which move at a speed of more than 0.6 meters per second. They are barrier-free isolation doors that can be lifted and lowered quickly. It is mainly used for fast isolation. The high-speed door has the functions of heat preservation, wind prevention, dust prevention, sound insulation, and fire prevention and is widely used in places such as warehouses or supermarkets. High-speed automatic closing devices can greatly improve operation efficiency.