Rolling shutter doors can be divided into fireproof rolling shutter door, PVC rolling shutter door, stainless steel rolling shutter door, crystal rolling shutter door, aluminum alloy rolling shutter door, grid rolling shutter door, color steel rolling shutter door, etc. The rolling shutter door made of different materials has different effects. According to the opening mode, it can be divided into manual rolling shutter door and electric rolling shutter door.

卷帘门具有防上推装置，防止以强制手段撬动门体，防盗的特点，除此之外它还有根据建筑物的不同特点可以选择内装、外装、中装三种不同的安装方式，开启后卷帘收卷在门体上部，节省车库内部空间，并且不会把泥土、雨、雪等杂物带入到车库内，外表美观时尚的特点，这是现在人们选择卷帘门的主要的原因。

The rolling shutter door has the characteristics of anti pushing device, preventing the door body from being pried by forced means and security. In addition, according to the different characteristics of buildings, it can choose three different installation methods: interior decoration, exterior decoration and interior decoration. After opening, the rolling shutter rolls up on the upper part of the door body, saving the internal space of the garage, and will not bring mud, rain, snow and other debris into the garage, The appearance is beautiful and fashionable, which is the main reason why people choose roller shutter now.
          

问题：

Safety issues:

卷帘门在上下启闭的时候查看清楚是否有堆物，特别是防火卷帘门是和消防系统联动的，经常会因为操作不当导致防火卷帘门损坏，或倾斜。

When the rolling shutter door is opened and closed up and down, check whether there is a pile of objects, especially the fireproof rolling shutter door is linked with the fire control system, which often leads to the damage or inclination of the fireproof rolling shutter door due to improper operation.

门帘在开闭的同时，严禁行人及奔跑，因为门帘在开闭的时候门帘是通过联片连接的，而电机和传动轴也是存在非常少的不因素。

When the door curtain is opened and closed, pedestrians and running are strictly prohibited, because the door curtain is connected by connecting pieces when the door curtain is opened and closed, and there are very few unsafe factors in the motor and transmission shaft.

卷帘门电机的选购也是比较重要的一个环节，切记不要感觉提升力够用就行，因为卷帘门电机的承载力会随着时间的推移，会慢慢的降低实际的提升功效，所以选材方面尽量的要超过门帘的实际提升力。

The selection and purchase of rolling shutter motor is also an important link. Remember not to feel that the lifting force is enough, because the bearing capacity of rolling shutter motor will slowly reduce the actual lifting effect over time, so the material selection should exceed the actual lifting force of the curtain as far as possible.