The Boxer ISM system is designed for double leaf doors and is fitted with an integrated mechanical closing sequence control. The ISM guide rail is only visible when opening the door. When closing the moving leaf whilst both doors are open, the moving leaf remains in waiting position until the fixed leaf is closed and enables the moving leaf via the closing sequence control.

Features:
Cam action concealed door closer
Totally concealed when door is closed
Closer size EN 2-4 and EN 3-6 in accordance with EN 1154 A
Adjustable closing force (when installed)
Adjustable closing speed
Adjustable latch action
Adjustable back check
Fire tested to EN 1634-1 (CERTIFIRE CF 242)
Minimum double leaf width 1300mm
Maximum double leaf width 2200mm and 2800mm to EN 1154 A
Maximum leaf weight 130kg and 180kg
Minimum door thickness 40mm and 50mm

Optional
Intumescent sleeves can be provided for use with fire doors