Since the application of door closers on the market has not yet reached very common, so everyone is not very clear about the classification of door closers. Common door closers can be divided into automatic door closers, fire door closers, etc. There are also For some infrequently used ones, let’s take the Fulda door closer as an example to talk about the classification of door closers.
Hidden door closer
The concealed door closer adopts low-temperature antifreeze hydraulic oil, which can be used flexibly in extreme environments (-40℃-60℃). It has a unique structure design and is suitable for left-opening or right-opening doors without any adjustment. It is easy to install, but for doors The requirements are stricter, the thickness of the wooden door shall not be less than 44mm, and the thickness of the hollow door shall not be less than 40mm.
Rocker type door closer
Rocker door closers are generally more suitable for light and medium-sized commercial doors for civilian use. The color classifications are generally silver-white, bronze, gold, and white, and are used in the installation of standard door frames.
Rail type door closer
Rail-type door closers are very popular in the European and American markets. They are mainly suitable for various civil and commercial doors, and are more common in general households and markets.
Fire linkage door closer
This kind of door closer is very important in the event of a fire, because it can automatically close the door and block the air to effectively spread the fire. The fire-fighting linkage door closer can also be connected to the fire-fighting control system, and is suitable for often-open fire-resistant doors. In the event of a fire or accident, the fire door can be closed in time under the action of the linkage door closer, and at the same time the door closing signal is sent to the fire control system.