This type of door consists of a large number of horizontal blades connected to each other, which wrap around a metal rod and move up and down with the help of a driving force. In order to be able to move these blades electrically, an electric motor must be used, which is connected to the power source with wires.

Jack Parking:

Arms that are used to open and close doors automatically are called parking jacks. The parking jack can be installed on all kinds of doors, such as single-leaf doors, double-leaf doors, heavy and large doors.