entrance door is absolutely secure against vandals. In addition, with a leaf height of 2.60 metres, a door width of 1.10 metres and a door leaf weighing more than 100 kg, enormous forces are generated that [...] opening cycles. The material requirements were very strict. The stainless steel used with material number 1.4401 is an austenitic rustproof steel with outstanding corrosion resistance, whose surface was polished [...] jamming. The advantage of this mechanical solution is that there is no need for any infra-red monitoring or safety electronics. With its covered hinges, massive bar grips and a forster presto profile system