DU - Innovative key system with 3D profiling for industrial buildings 

The CES key section series DU with undercut is a legally protected conventional key system for industrial buildings.

System description

  • DIN 18252/EN 1303 compliant
  • Conforming to VdS standards 2156 and 2386 for individual locking cylinders and locking systems 
  • 5 or 6 main nickel silver locking elements on either cylinder side, comprising 5 or 6 spring-loaded, stepped and vertically acting locking pins, plus 3 additional control and locking elements enhancing the locking safety
  • At least one driver pin and all key pins made of hardened steel (as an additional anti-drilling protection)
  • Security scanning by specially formed driver pins for effective protection against picking tools
  • Guiding groove along the entire cylinder plug for positive transfer of the key torque
  • Strong nickel silver key manufactured according to DIN standard and perfectly suited for commercial armatures with cylinder covering
  • Legally protected key section with a maximum of variants
  • Manufacturer's key section for use in master key and grand master key systems
  • Also available in British and Scandinavian profile