Silent Commercial Grade Hidden Door Closer D20 Smooth Running Lightweight

   Silent Commercial Grade Hidden Door Closer D20 Smooth Running Lightweight

•     Smooth running, no oil leakage and abnormal sound     
•     Two valves control closing and latching speed                
•     Commercial Grade Best for Hotel Room Door                  

            Dorrenhaus commercial grade hidden door closer D20, hydraulic structure,

            rack and pinion type, with closing force of EN-2, applicable for 850mm

            width door or 45kg weighing door. 

         1.   Material: cast aluminum closer shell, aluminum hidden sliding track arm

         2.   Two valves, one controls closing speed, another controls latching speed.

         4.   Durable closer lubricating oil for any climate running and constant lubrication

         5.   Appearance: concealed design, soft with its body , temper force with grace

         6.   Properties and 150,000 plus life cycles comply with Chinese national standard

         7.   Automatic Lightweight Hidden Door Closer Size / Speed Fully Controlled

         8.   Structure: rack and pinion type, needle bearing with two-time heat treatment

         9.   Best for medium and light traffic area, such as a small office or hotel room

        10.  Completely controlled from setting of opening force to door latching speed

        11.  Slim body with 28mm thickness, Minimum door thickness for installation

               - 40mm for wooden door and 35mm for sash door

         ►  Stable cooperative manufacturer of international famous door closer companies

                Finishes - Silver, Bronze, White, Gold, Black, Brown

            * SPRING FORWARD, EASY BACK: commercial-level swing arm will not impact opening,

                 while closing doors silent and slowly enough to allow graceful entrance and exit

            * SOFT, NO NEED TO CLOSE MANUALLY: allow the door do the work, enjoy automatic

                 closing and latching, maintaining quiet and security.