Special fire-proof shutter door (inorganic cloth folding lifting type) is derived from inorganic lifting fire-proof shutter curtain using shutter as power source to improve transmission efficiency by bearing, bearing seat and bearing support shaft. Under the action of lifting, the curtain is folded up to the top of the hole. When the opening is infinitely large, a power (door coiler) or transmission device will be added at a certain distance, which solves the problem that the topographic scroll and rolling curtain can not be used normally when the opening width is too large and the turning width is too large. He also has all the functions and characteristics of inorganic super-grade fire-proof shutter door (double track inorganic cloth base), reliable operation, smooth opening and closing operation, fast speed, low noise and so on
Suitable for industrial and civil buildings, fire-proof curtain with fire-proof function. It is also suitable for all kinds of unconventional openings with long span, curved shape or corner.
（1）The opening and closing transmission of the fire-proof shutter can be installed on the left, right or left and right side of the room according to the installation conditions and use requirements.
（2）（2）When adopting the fire-proof shutter, we should consider the position of the transmission mechanism to avoid collision with the building members.