What is door self closing mechanism?

A self-closing mechanism is a device that automatically closes a door behind someone who has opened it. It is commonly found in public buildings and areas where fire safety codes require doors to be kept closed at all times. Some examples of self-closing mechanisms include hydraulic door closers, spring hinges, and electromechanical systems. These mechanisms function differently but all serve the same purpose of keeping doors securely closed. Some self-closing mechanisms can be adjusted to control the speed at which the door closes, making it more or less forceful depending on the situation. These mechanisms can also be customized to work with different types of doors, including heavy metal doors and lightweight wooden ones. Proper installation and maintenance of self-closing mechanisms are essential to ensure that they work smoothly and effectively, minimizing the risk of injury and maintaining the safety of buildings and the people who use them.