With the development of science and technology, people's life gradually tends to automation, and electric roller shutter doors are widely used. This paper mainly introduces the selection and installation method of electric rolling shutter door. For the selection of curtain specifications, generally, 55 or 77 curtain is selected for small single car garage doors (width within 3M and height within 2.5m), and 77 curtain is selected for large double garage doors. The roller shaft of Jinan rolling shutter garage door supporting the rolling shutter door system generally adopts a circular pipe with a diameter of 80mm. The size of the end seat varies according to the size of the door, and whether the cover is required is determined according to the use situation. 
选购方法
​Purchase method

一、电动卷帘门是否支持手动功能，手动要方便，快捷。停电时将离合扭转90度，即可手推运行。

1、 Whether the electric rolling shutter door supports manual function, which shall be convenient and fast. In case of power failure, turn the clutch 90 degrees to manually push it.

二、电动卷帘门不能存在惯性滑行的现象，要具有双面自动卡锁功能。

2、 The electric rolling shutter door shall not have the phenomenon of inertial sliding, and shall have the function of double-sided automatic locking.

三、为了提高电动卷帘门运行平稳程度，要增强拉力，所以本厂采用的是8轮前后驱动，连排齿轮转动的生产安装技术。

3、 In order to improve the smooth operation of the electric rolling shutter door and enhance the tension, the factory adopts the production and installation technology of 8-wheel front and rear drive and continuous gear rotation.

四、观察电动卷帘门的结构是否精密，润滑程度好坏，好的电动卷帘门散热比较，采用全齿轮转动，无链条、无皮带，进而增强了卷帘门机芯整体寿命。

4、 Observe whether the structure of the electric rolling shutter door is precise and the lubrication degree is good or bad. A good electric rolling shutter door has better heat dissipation. It adopts full gear rotation without chain and belt, so as to enhance the overall service life of the rolling shutter door movement.

安装方法

Installation method

一、先在需要安装的门框框口位置画出线。表明尺寸大小，然后找工作人员设计出合适的电动卷帘门，这里值得注意的一点是框内高度比门扇的高度要高一点点

1、 Draw the outgoing line at the door frame opening to be installed. Indicate the size, and then find the staff to design a suitable electric rolling shutter door. It is worth noting that the height in the frame is a little higher than that of the door leaf

二、先把电动卷帘门的门框固定，这里要先拆掉门框下部的固定板。（注意：洞口两侧地面要预留凹槽，经校正合格后，固定木楔，门框铁脚与预埋铁板件焊牢。用水泥砂浆或强度不低于10MPa细石混凝土嵌塞牢固即可。）

2、 First fix the door frame of the electric rolling shutter door. Here, remove the fixing plate at the lower part of the door frame（ Note: grooves shall be reserved on the ground on both sides of the hole. After correction, fix the wooden wedge, and weld the iron foot of the door frame with the embedded iron plate. Cement mortar or fine aggregate concrete with strength not less than 10MPa can be used to plug firmly.)

三、安装电动卷帘门扇主体门扇。一定要保证电动卷帘门与墙体结成整体，封闭性要做好，再粉刷洞口及墙体。粉刷完毕后，门缝应均匀平整，开启电动卷帘门应该自由轻便，不得有过紧、过松和反弹现象。

3、 Install the main body of the electric rolling shutter door leaf. It must be ensured that the electric rolling shutter door and the wall form a whole, and the sealing shall be done well, and then the hole and wall shall be painted. After painting, the door seam shall be even and flat, and the opening of the electric rolling shutter door shall be free and light without too tight, too loose and rebound.