Internal Overhead Concealed Door Closer , 3 Hours Fire Rating Hold Open Door Closer

Internal Overhead Concealed Door Closer , 3 Hours Fire Rating Hold Open Door Closer

• UL 228 standard, tested life cycles of 200,000 plus
• SKILLED CRAFT: even running, oil tight, noiseless
• Two screws adjusting closing and latching speed

Internal overhead concealed door closer D30, with stronger spring strength,

the closing power is of size 3, suitable for max. internal door width 950mm

or door weight 65kg. Normally if the door width is less than 950mm, then

max. door weight of 80kg will be applicable.

Ω UL listed light duty overhead concealed door closer for commercial use

Ω Precised cast aluminum body, anodized aluminum sliding track arm

Ω​ Fixed closing power size 3, suitable for internal door weight 40-65kg

Ω Opening angle limit: 150 degree, usually set opening angle at 90º

Ω No need to close manually, the closer itself will close automatically

Ω Hold open unit in track rail is for optional, which can be easily installed

► Trusted cooperative manufacturer of world's well-known door security brands

Painting - Aluminum, Gold, Bronze, Brown, White, Black

* SPRING THRUST, EASY BACK: commercial-level swing arm won’t interfere with opening,

at the same time closing door gradually to allow elegant entrance and exit

* SOFT, NO MANUAL CLOSING : let the door close by itself, enjoy automatic closing and

latching, maintaining quiet and security.

concealed door closer

hidden door closer

Internal Overhead Concealed Door Closer , 3 Hours Fire Rating Hold Open Door Closer Images