伸缩门主要由伸缩门体、机头、控制器三部分组成。 1、伸缩门门体：伸缩门体是由门体大框、交叉撑、轴（定轴、滑轴）及伸缩门门体轮 等主要部件组成。伸缩门体整体为金属结构，按材质又分为不锈钢门体、铝合金门体、压铸铝门体。 2、机头：由驱动器和电气部分组成，它固定在伸缩门门体的一端，带动门体伸缩运动，与伸缩门体配套使用。 驱动器分普通线式型、豪华型全遥控型和智能机器人无轨型。 3、控制器：由控制盒、台式控制器及手柄遥控器组成。

The telescopic door is mainly composed of three parts of the telescopic door, the head and the controller. 1, telescopic door body: the expansion door body is composed of main parts, such as large door body frame, cross bracing, shaft (fixed axis, sliding shaft) and telescopic door body wheel. The telescopic door body is a metal structure as a whole, and it is divided into stainless steel door, aluminum alloy door body and die-casting aluminum door. 2, head: composed of the drive and electric part, it is fixed at one end of the door of the telescopic door, which drives the expansion movement of the door body, and is used with the telescopic door. The driver is divided into ordinary line type, luxurious and completely remote control type and intelligent robot. 3. The controller consists of a control box, a desk controller and a handle remote control.