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roller shutter operational principle

Fire truck rolling shutter door mainly consists of door body, driver, and control system. The body is made of stainless steel or aluminum alloy profiles, and is hinged using the parallelogram principle, with flexible expansion and large stroke. The driver is driven by a special motor, with worm gear reduction and a manual clutch. It can be manually opened and closed in case of power outage. The control system has a control board, button switch, and can also be equipped with wireless remote control device according to user needs. Can be equipped with a scrolling display screen, displaying 500 words of display content. It can also be equipped with an intelligent infrared dual probe collision prevention device, which can automatically return to operation when encountering people or foreign objects 20-30cm, thereby ensuring the safety of vehicles and pedestrians.