电动伸缩门主要有电动伸缩门体、无轨道机头/有轨道机头、控制系统三部分组成。
The electric telescopic door is mainly composed of electric telescopic door body, trackless machine head / trackable machine head and control system.
1、电动伸缩门体：伸缩门体是由门体主料、副料、小轮及门体轮等主要部件组成。门体整体为金属结构与PVC塑料组成，按材质又分为不锈钢门体、铝合金门体、压铸铝门体还有PVC塑料。
1. Electric telescopic door body: the telescopic door body is composed of main material, auxiliary material, small wheel, door wheel and other main parts. The whole door body is composed of metal structure and PVC plastic. According to the material, it is divided into stainless steel door body, aluminum alloy door body, die-casting aluminum door body and PVC plastic.
2、无轨道/有轨道机头：由驱动器和电器部分组成，它固定在门体的一端，带动门体伸缩工作，与门体配套使用，有部分产品按客户要求不安装电器部分。
2. Trackless / trackable machine head: it is composed of driver and electrical parts. It is fixed at one end of the door body to drive the door body to expand and contract. It is used with the door body. Some products do not install electrical parts according to customer requirements.
3、驱动器分无轨道/有轨道机头。
3. The drive is divided into trackless / trackable head.