Exidor 9870 electromagnetic overhead door closer 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. Power size 4, Adjustable latching speed, Adjustable sweep speed, Supplied with brackets for fig 1, fig 61 and fig 6 fixing, Elegant radius cover.
