ICS technology

The ICS (Inner Code System) reversible key system provides effective protection thanks to the unique combination of three different blocking technologies:

  • the specially shaped, hard-wearing length profile,
  • the time-tested curve system, which scans locking authorisation, and
  • the improved pin system. This consists of concealed, inner recesses on the ICS key body - a unique feature not found anywhere else in the world. As a result, it is virtually impossible to manufacture unauthorised duplicate keys.

Lock authorisation is queried by a total of 13 spring-loaded blocking pins in three rows as well as by the specially shaped length profile.

  • Two rows of pins on the side with ten non-split blocking pins scan the curves on the key's sides.
  • One centred row of pins with three tracking pins check the concealed, inner drilled recesses on the key's narrow sides.


  • Combination of three blocking technologies
  • Optimum key copying protection due to the concealed scanning features on the key. Both legal key protection (patents) and organisational key protection (security card)
  • Beautifully shaped design
  • Reversible key
  • Modular design
  • Short overall lengths (27 mm / 27 mm) to ensure no cylinder overhang
  • Optimum wear resistance thanks to resistant materials.
  • Each locking system is unique