In the event of a fire, door closers on fire doors must keep the door shut. But in this case, the opposing force of a door closer can severely compromise the ease with which such a door is opened and become an obstacle, especially for the elderly, children and those with physical disabilities. The cam technology used in CISA's latest generation door closers ensures the door opens highly efficiently every time. In fact, the initial opening force decreases suddenly, making the door easy to open for all.
Cam action technology
Easy, safe access through heavy doors which are difficult to open with traditional door closers.
Tests on cam action door closers show the force exercised during the door opening and closing cycles.