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High speed spiral door is also called aluminum alloy fast door, referred to as hard shutter. It is a new type of metal fast door with anti-theft, wind resistance and high temperature partition. It is reliable, practical and easy to operate.
1. Infrared safety photoelectric protection device: There are radio eyes on both sides of the door frame. When someone or a car passes through the door during operation, the door will remain open, and it will be closed after a delay when there is no obstacle below.
2. Bottom airbag: When the door body is falling, because the object is in the blind area of infrared safety protection, when the door body is pressed against the obstacle below, the door body quickly rebounds at the most open door, which can effectively protect the object or pedestrians below. Avoid accidents.
3. Light curtain protection system: on the inner side of the door track, the installation height is calculated according to the actual height of the door body. The protection principle is the same as that of infrared safety photoelectric, which can effectively protect passing pedestrians or vehicles.
With high work efficiency and higher safety, high speed spiral door is gradually replacing industrial sliding doors.
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