After three years of development, Efaflex has launched the high-speed spiral door EFA-SST Secure with Resistance Class 4 (WK4). To meet the increased safety requirements, the company had to completely design new components, such as a new door leaf section, a hinge chain and rollers.
The security door withstands a maximum opening force of 10,000 Newtons and is designed for an attack from the outside, in which experienced criminals proceed with extreme brutality. It reaches maximum speeds of 1.0 m / s when opening and 0.6 m / s when closing, is designed for approx. 250,000 load changes per year and is manufactured to the millimeter according to customer specifications. It is very quiet, reliable and almost wear-free.