Rolling shutter manufacturers are used in many indoor, outdoor and many food industries as well as in company doors, hospitals, supermarkets, etc. It is very convenient to use and saves space, but if it fails, do you know how to deal with it?

In many cases, the motor does not turn or the rotation is very slow. Such a fault is most likely caused by a broken line or a stop button that is not reset. In this case, you only need to press the button a few times, because it is very likely that an obstacle is stuck at the button. Another possibility is that the control fails. This happens mainly because its contact deformation and slider international are caused by you, causing the button's key to be stuck. In this case, you need to replace the limit. The drive gears are replaced with contacts and relays.

The passage halls, passages, etc., which are connected to the atrium, shall be provided with Class B fire doors or fire shutters with a fire limit greater than 3.00h. Two high-rise or high-rise buildings are adjacent to single-storey and multi-storey civil buildings not lower than the second-grade fire-resistance class. When the adjacent higher-side external wall has a fire-resistance limit of not less than 2.00h, Class A fire protection is provided at the wall opening. When doors, windows or fire shutters are used, the fire separation distance can be appropriately reduced, but it should not be less than 4.00m. The door of the fire elevator front room shall be a Class B fire door or a fire shutter with a stagnant function.

Shutter doors have now been widely used as garage doors, warehouse doors, and store doors. Although the functionality of the rolling door is becoming more and more prominent, everyone seems to ignore its biggest advantage, that is, it can replace the original door, save a lot of space, use shutter doors in some shops, garages, factories and the like. In the place, after the shutter door is opened, the attachment is wound up in the upper part of the door, which saves the internal space, and does not bring rain, snow and dirt into the room, and the cost is lower than other doors.

When high-rise buildings are provided with openings such as corridors, open stairs, escalators, etc., which are connected by upper and lower floors, the upper and lower communication layers shall be used as a fire protection zone, and the maximum allowable construction area shall not exceed the regulations. When the upper and lower opening parts are provided with a fireproof roller blind or water curtain and other partitioning facilities with a fire endurance greater than 3.00h, the area may not be calculated. Fire shutters located on evacuated walkways shall be provided with opening and closing devices on both sides of the roller blind and shall have automatic, manual and mechanical control functions.