The DICTATOR RTS tube door closer is virtually invisible because being built into the door. The joint can only be seen when the door is open.
The DICTATOR RTS tube door closer is often used on outside gates such as garden entrance gates, admission gates into industrial plants. These gates usually do not have a frame above the door where the operating lever of a normal overhead door closer could be fitted. Furthermore the concealed fitting protects the door closer from atmospheric conditions and against vandalism.
This makes the RTS an ideal solution for admission gates into industrial plants with access control which have to close reliably (Supply Chain Security).
The RTS tube door closer is particularly suitable for aluminium and steel doors/gates. It can also be fitted into the profile of an existing door. For flush wooden doors with minimum 40 mm thickness, a tube door closer with special fitting plates can be supplied.
Link:
https://en.dictator.de/products/door-closing-solutions/special-door-closers/tube-door-closer-rts/