Specification :

Feature:
* Suitable for maximum 1.000mm wide door leaf of single direction opening door, the maximum door weight is 65kg ( DC/ ONS 870 FR) & 120kg ( DC/ ONS 850 FR)
* Precisely sealed, preventing oil leakage
* High quality die casting alumunium alloy, protected with two
* layer bright paint.
* Two hydraulic press valves controlling two stage doors closing speed automatically, 180 degrees fully hydraulic control and hold open at 90 degrees
* 75 minutes fire rated, UL approved
* 3 years mechanical warranty