
Exidor 4870 hold open/swing free E-Mag overhead door closer, power size 4
Exidor's 4870 hold open/swing free E-Mag overhead door closer, power size 4 features both hold open and swing free options combined within the same unit. Hold open function holds the door in its open position where as swing free mode allows the door to be opened with no resistance from the closer – However, when the buildings fire alarm is activated, power is cut to the unit and the closer then shuts the door. The 4000 Series can be fitted with a choice of stylish front designs, including B-slide, L-Slide or E-Slide and has a matching arm as standard.