A ​door closer is an adjustable and spring-loaded mechanical arm that closes a door automatically after it has been opened. Door closers are usually filled with hydraulic fluid, which dampens the door swing and controls its operation. Installing a door closer adds a level of control to your door's safety and security.

A door closer prevents damage caused when doors open or close too fast. The device causes doors to close slowly, eliminating the issues associated with slamming doors. Unlike commercial door closers, residential door closers are available in a variety of colors and styles. Installing a door closer is an easy process that requires following a few straightforward steps.

The door closer is a hydraulic device similar to the spring on the door head. When the door is opened, it can be released after compression, and the door can be closed automatically. It has the function of spring door, which can ensure that the door can be closed to the initial position accurately and timely after being opened.