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product features:
The built-in type does not affect the beauty of the door. The rotary shaft door closer is installed inside, which is easy to install. Its shape is small and will not affect the beauty of the door. The new-type products instead of floor springs are specially designed to meet the trend of thin floor in modern buildings, and will not damage the floor surface during installation; The central hanging type automatic door shaft is most suitable for places where it is difficult to install ground springs and drum door closers. It is applicable to fire door, flue and escape door. Through interlocking with smoke sensor, it can reliably ensure the closing of fire door and the opening of flue and ventilation door. The decorative rubber sheet is easy to adjust the speed and strength. The decorative rubber sheet is attached inside for speed control and spring tensioning. The sliding base is easy to install, with the minimum embedding depth. There is a sliding base in it, and the alignment is accurate, so it is easy to insta



table of technical parameters:
equipment model AK-8KH/AFD-8KH
Applicable door weight <50(KG)
Installation method standard
Maximum opening angle 180° in one direction
product installation or operation instructions: 1