The significance of the door closer is not only to automatically close the door, but also to protect the door frame and door body (smooth closing). More importantly, the door closer has become an important part of the intelligent management of modern buildings.
Door closers are mainly used in commercial and public buildings, but they are also used at home. They have many uses, the most important of which is to make the door close by itself to limit the spread of fire and ventilation in the building.
The types of door closers can be divided into: exterior and built-in door top door closers, built-in door closers, door bottom door closers (floor springs), vertical door closers (built-in vertical closing Door closers) and other types of door closers.