The force used to open the door is stored in some type of spring and when released this energy is then utilised to return the door to a closed position.
Thing that closes door slowly.
Most are adjustable so you can slow the door s swing down.
Learn how easy it is to install one yourself.
After opening it slowly pulls the door back into the closed position.
A door closer is defined as any mechanical device that closes a door in a controlled manner preventing it from slamming in general after someone opens it or after it was automatically opened.
If the mechanism is not adjusted correctly however the door will either slam shut or will not close at all.
Prime line kc16hd safety spring door closer easy to install to convert hinged doors to self closing diecast construction 4 1 4 black non handed by prime line 10 40 10.
These air powered devices attach between the doorframe and the door edge and use an air filled piston to slowly swing the door closed.
Hydraulic door closer would be a more specific designation harp 19142 great answer 5 flag as a good bit of info on selecting one on mcmaster carr s site.