8 Pack Universal Butterfly Spring Hinge Door Closer, for Butt Hinge Pins Automatic Spring Door Closer

About this item Model: Spring Door Closer, for On Most Door Butt Hinge Pins Automatic Spring Door Closer Working principle: The spring door closer mainly relies on the elasticity of the spring to achieve automatic door closure When opening the door, the door body drives the transmission device of the door closer, causing the spring to be stretched or compressed to store energy When the door is opened, the spring releases energy and the door automatically closes Function: The spring door closer has automatic closing function and buffering function, ensuring that the door automatically and smoothly closes after opening. It can prevent the door from colliding with the wall, so that the door will not produce noise and damage due to collision when closing, improving safety and convenience Performance: The spring door closer is made of high-quality metal, which is incredibly tough and can withstand tremendous pressure and frequent use Installation points: Please pay attention to safety during installation and do not clamp your fingers on the door frame When installing the spring door closer, ensure that it is tightly connected to the hinge pins, and debug it after installation to ensure the closing effect and performance of the door