EVVA 4KS High Security Cylinder with unique spring-free technology.

The 4KS cylinder technology is unique due to its curved spring-free mechanism. Unlike conventional locking systems, in the 4KS cylinder the locking elements move along the curves of the key and are not guided by spring force.

Features:

• 12 solid, spring-free balls that align correctly after a positive check of the 6 curves of the key.
• A locking bar that controls the correct profile of the cylinder.
• The key is scanned a total of 4 times during the locking process.
• Spring-free operation system that guarantees maximum resistance to corrosion and burglary.
• Reversible key with curved edges.
• Ownership card and key duplication protection.
• Each locking mechanism is unique.
• Can be configured with specific functions (knob cylinder, double function).
• Key duplication protection until 2035.

The EVVA 4KS cylinder is equipped with multiple reading mechanisms and 18 balls. The mechanisms must align to disengage the locking mechanisms. When the locking balls reach the correct position, they release the side bars and the cylinder unlocks.

Protection against burglary with Picking and Bumping is ensured through a variety of locking systems. Additionally, protection against drilling and pulling is provided through the hard metal of the side bars.

The reversible key of the 4KS is easy to use, with a nickel-plated surface to reduce friction and wear resistance. The key includes three wavy grooves with two different depths for detection by the sliders.

Certification: EN-1303:2015.