The electric sliding door is used widely in the factory, warehouse and logistics area of all kinds of industry and commerce area. The electric sliding door is the combination of signal door or multi-doors without connection each other. According to the installation space, you can choose the open mode as follows: Signal-direction or double-directions as one door along a line, signal-direction or double-direction as doors folding along a line. Upper load-bearing and down load-bearing are available. If install the guide rail for load-bearing on the top of the door is available, upper load-bearing is recommended. Otherwise down load-bearing according to the installation condition and customers' requirement. The door material customer can choose as follows: 1. Foam door material that is made of hot-DIP galvanized plate and polyurethane core. 2. Foam door material that is made of aluminium and polyurethane. 3. Battenboard that is made of colored steel plate and foam. The door body thickness is 45mm-150mm in general according to customers' requirement, such as keep warm, wind load resistance, anti-distortion. In order for people easy to pass in and out and requirement on light, small door is available, weight is 700-900, height is 1700mm-1900mm. Window also you can choose for light. The door frame, small door frame, split joint adopt special high intensity aluminium alloy and metal material, which can reduce the door weight and looks beautiful and elegance. Use the polyurethane resin for seal on the side /top /bottom of the door, which is better than normal rubber and prolong the use life.