Safety doors, for example fire doors, are heavy due to their product characteristics and can therefore only be opened with difficulty by senior citizens, children and people with disabilities in particular. Therefore, in the case of an emergency, an easy-to-open fire door represents a crucial advantage that can save lives.
System Schröders easy running doors are maintenance-free, permanently resistant and can reduce the required opening forces by 50 to 60%.
System Schröders has developed a new easy-running plain bearing specifically for this purpose. This reduces the opening forces for heavy doors by 50% to 60%, thus converting the safety doors of our ModulSystem into easy-running doors.
Equipping escape routes with these System Schröders easy-running doors can provide that additional life-saving safety advantage.
Opening forces well below the required specification
The easy-running plain bearing has also been developed in order to satisfy the
Technical Supply Conditions and Technical Test Regulations for Doors and Gates in Road Tunnels. Here, fireproof emergency exit doors may have opening forces of up to 60 Newtons.
A door leaf equipped with the new composite plain bearing and with the dimensions of 1,200 x 2,250 mm and a weight of 161.5 kg requires an opening force of just 35 Newtons if the door closer is correctly adjusted.
System Schröders easy-running doors are therefore well below the limits specified by the test regulations, which increases the safety of escape routes enormously.
Not only the easier opening of the doors provides extra safety. Unlike with other bearings, such as the conventionally used ball bearings, the prescribed annual maintenance is not required. The regular check and greasing of the bearing is not necessary. This means that costs can even be saved with increased safety.
The new polymer plain bearing also stands out due to its high level of resistance. In long-term function tests the plain bearing did not display any significant wear even after 700,000 test cycles. The low opening forces were retained.
The new composite bearing is suitable for all System Schröders fire, smoke, burglary protection, sound insulation and exterior doors. Even existing doors made by System Schröders can be simply converted to easy-running doors.