The door stopper is also commonly known as door touch. It is also a device that sucks and locates the door leaf after it is opened to prevent it from being closed by wind blowing or touching the door leaf.
The door stopper is divided into two types: permanent magnetic door stopper and electromagnetic door stopper.
Permanent magnet door stoppers are generally used in ordinary doors and can only be controlled manually.
Electromagnetic door stoppers are used in electronically controlled door and window equipment such as fire doors, and have both manual control and automatic control functions.