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

The technology of the 4KS cylinder is unique thanks to the curved, springless mechanism. Unlike compatible locking systems, in the 4KS cylinder, the locking elements move along the curves of the key and are not guided by spring force.

• 12 solid, springless balls that come into the correct position after a positive check of the 6 curves of the key.
• A locking bar controls the correct profile of the cylinder.
• The key is scanned a total of 4 times during the locking process.
• Springless operation system that guarantees maximum resistance to corrosion and tampering.
• Reversible key.
• Ownership card and key reproduction protection.
• Each locking mechanism is unique.
• Can be configured with specific functionalities.
• Key reproduction protection until 2035.

The EVVA 4KS cylinder is equipped with multiple reading mechanisms, a total of 12 springless mechanisms. These mechanisms must be aligned in the correct position to unlock the cylinder.

• Protection against picking and bumping.
• Protection against drilling.
• Protection against forced entry.

The reversible 4KS key is easy to use and features nickel-plated material to reduce friction. The balls are coated with Teflon to prevent corrosion.

Certificación EN-1303:2015.