Boxer free swing door closers

Boxer ISM-EFS * Integrated door closer system for double leaf doors with closing sequence control and electric free swing function

Door closer Boxer ISM-EFS Integrated door closer system for double leaf doors with closing sequence control, electric hold-open device and integrated back check that slows down strongly opened doors.
  • System comprising two door closers Boxer EFS 4-6 and Boxer 2-4 or 3-6 with ISM guide rail
  • Closing force with variable adjustment of EN4-6 on the active leaf, EN3-6 or EN2-4 on the passive leaf
  • Can be used for right and left hand doors without conversion
  • Door closer is embedded in the door leaf and frame and fulfils the highest design demands
  • Closing sequence control holds the active leaf in the waiting position until the passive leaf is closed
  • Free swing function makes it possible to pass through the door with little physical force required
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  • Comfort hold-open function locks the door at the end of the free swing area
  • Smoke switch control unit can be connected, whose signal makes the door close automatically in the event of a fire
  • Integrated back check, slows down doors that are thrown open forcefully
  • Hydraulic latching action which accelerates the door shortly before it is closed
  • Closing speed can be individually adjusted
  • All functions can be adjusted in the installed state
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Application Areas

  • Fire and smoke protection doors, proof of suitability for the door required
  • Double leaf single-action doors
  • Symmetrical and asymmetrical division of door possible
  • Single-action doors up to 2800 mm hinge clearance and 1400 mm leaf width, for door weights up to 180 kg
  • Minimum hinge clearance 1300 mm, minimum width of passive leaf 540 mm
  • For door leaf thicknesses from 50 mm
  • Integrated installation
  • Hold-open systems with integrated hold-open function with free swing
  • Barrier-free access in accordance with DIN 18040

Technical data

Closing force in accordance with EN 1154 EN 2 - 6
Barrier-free in accordance with DIN 18040 up to leaf width (max.) in mm 1400 mm
Leaf width (max.) 1400 mm
Leaf weight (max.) 180 kg
Type of installation Concealed
Opening angle (max.) 120 °
Minimum hinge clearance 1300 mm
Minimum passive leaf width 540 mm
Suitability for fire protection doors Yes
Closing force adjustable Yes, stepless
Adjustable closing speed Yes
Latching action adjustable Yes, via valve
Back check integrated Yes, hydraulically adjustable
Position of closing force adjustment Top
Hold-open function Optional
Hold-open device on the active leaf / passive leaf Yes / Optional
Closing sequence control integrated Yes

Variants & Accessories


GEZE Central +31-40-262-90-80 GEZE Service +31-40-262-90-46