4KS - The Stable Locking System from EVVAMore robust. Stronger. More secure.
You can always rely on 4KS. Thanks to its high level of resilience, the system also locks and unlocks in the toughest conditions. Even after years, it works like it did on the first day. This makes 4KS your first choice for the toughest conditions – at high altitudes or in production facilities subject to high amounts of dirt. What's more, 4KS also offers extensive upgrade opportunities which enables the implementation of highly complex master key systems.
4KS is ideal for master key systems with a complex structure and a large number of different user groups. Such as universities, shopping centres, retail chains and industrial companies. In cooperation with qualified partners, EVVA has been providing security technology for a hundred years.
In contrast to other master key systems, the locking elements in 4KS cylinders slide along the curve key cuts on the key. A total of 12 springless, solid locking pins are brought into a specific position via positive control of the 6 key curves and scanned by 2 control bars. The key's overlapping curve key cut makes it virtually tamper-proof.
MCS keys are available in many different colours. The colour coding helps to easily distinguish between keys.
Copy keys, additional cylinders and lock charts are available from authorised EVVA Partners only upon providing proof of legitimacy, i.e. theEVVA security card.
The reliable technology of the 4KS cylinder offers lasting protection against illegal opening methods: