Straight staircase

outdooraluminumemergency

Stairs with counterbalanced retractable flight check Smooth descent thanks to the use of counterweights. check Easy to close after usage. check Reliable all the time, every time. check Already more than Counterbalanced stair with prolonged stringers The lower pivoting flight is equipped with one prolonged stringers on each side, which project over the rotation point. They contain the right amount of counterweights and thus allow the stair flight to be in equilibrium at its rotation point. Counterbalanced stair with cable and pulley system The counterbalance is applied to the tip of the stair flight via a system consisting of one or more cables and pulleys. The cable connects to counterweights that move inside a hollow profile, which is positioned vertically. Hidden evacuation stairs This system was engineered and placed by JOMY at the University Library of Amsterdam. It works with a cable and an electric motor to ensure the correct counterbalancing. As required by the architect, in closed position the stairs are completely hidden. Counterbalanced sliding stair Starting horizontally, the stairflight, guided on rails, first moves towards the edge before smoothly lowering itself to groundlevel. The counterweights are hidden in prolonged stringers. When not in use, it can be hidden behind a openable facade.