New individual lockings

The locking cylinder, the core piece of lock and door security, is based on a long-existing "classic" principle - A key bears mechanical coding in the form of notches and in the form of its profile. This coding is read in the locking cylinder. If the key profile and the locking cylinder profile match and the key notching also fits, the pins align themselves in the locking cylinder in such a way that the locking cylinder core can be turned and is thus locked.