DC300T - Heavy duty rack and pinion


Tandem door closer with rack and pinion technology and link arm


  • Rack and pinion closer with link arm L190
  • Two door closers are interlinked for extra wide and heavy doors
  • For single action doors up to 1,800 mm wide
  • Tandem mounting plate A121 generally required
  • Closing speed, latching speed and backcheck adjustable via front facing regulating valves
  • Can be used for left and right-handed doors
  • Thermodynamic valves for consistent performance
  • Axis height-adjustable up to 14 mm
  • Double closing torque of DC300, EN size > 7
  • Variable adjustable closing force
  • Opening angle up to 180°
  • Large range of applications


  •  Silver EV1


  • Certified in compliance with EN 1154
  • Suitable for fire and smoke protection doors