Guangzhou Wansheng Door Industry Co., Ltd. has developed a new type of high-speed rolling door equipped with core technologies such as an emergency manual door opener, which has been recognized by numerous customers and applied for related patents. In the event of power failure, malfunction, or various emergency situations, only one person is needed to complete the opening and closing of the door body without the need for climbing equipment, greatly facilitating operation and increasing the safety factor of the work.
When a high-speed rolling door encounters mechanical failure or electrical control circuit failure, and the door body cannot be raised or lowered through the electric transmission system, a manual crank can be inserted into the motor tail shaft. One hand pulls the motor brake while the other hand cranks the lever to open the door. The disadvantage is that depending on the door height, a step ladder or climbing equipment is required. When a large door fails, one person cannot complete the door opening operation.
The emergency manual door opener was developed based on customer suggestions during product use and years of R&D by the company. When the door body encounters mechanical failure or electrical control circuit failure and cannot be raised or lowered through the electric transmission system, the emergency manual lifter can be used to open or close the door. No climbing equipment is required; the operation is completed manually at ground level, achieving rapid opening and closing for emergency response.