EVVA 4KS (4-Curve System) is the most resistant system among mechanical locking systems. With the patented, springless curve technology, 4KS is suitable for the toughest conditions. The reversible key is convenient to insert and turns easily and silently in the cylinder. And of course, 4KS also has its own unique feature: the overlapping curve millings guarantee optimal security.Contact us Video
4KS is ideal for locking systems with a highly complex structure and a large number of different user groups such as:
The following types of cylinder are available in the 4KS locking system:
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