Sliding Track Arm Hidden Door Closer , Silent Overhead Concealed Door Closer

   Sliding Track Arm Hidden Door Closer , Silent Overhead Concealed Door Closer

•        Skilled Craft: even operation, oil tight, noiseless        
•        Closing & latching speed adjusted by two valves       
•        ISO9001:2015 certification | Exporting since 2011       

           Dorrenhaus overhead concealed door closer D20, is of hidden type, will be

           mounted inside the door and will not be visible while the door is completely

           shut. Compare with surface mounted door closer, It's hard to install.

           Usually it's better for building project specially for room door of hotel,

           restaurant or similar public building.

            Ω  Overhead conealed door closer, light duty for hotel room door

            Ω  Aluminum hidden track arm with optional hold open device

            Ω  Slim body with 28mm thickness, min. door thickness of 40mm

            Ω  Non-handed installation, designed for universal application

            Ω  Meet requirements of UL 228 standard, tested life cycles 150,000+

            Ω  Casting aluminum body with anodized aluminum sliding track arm     

            Ω  Fixed spring force #2, suitable for max. 850mm door width   

            ► Trusted cooperative manufacturer of global first-rate security trade mark

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

             * GENTLE, NO MANUAL CLOSING: the door will closer by itself, enjoy self-acting

                closing and locking, keep quiet and safety.

             * SPRING THRUST, EASY CLOSING: the commercial-grade arm won’t interfere with

                opening, while closing doors slowly enough to allow graceful entrance and exit