IKON SK6 Locking wave undercut extra code


High-quality IKON profile in special class SK6 with 11 active spring-loaded locking elements. An additional coding, the locking shaft, is milled into the long sides of the key. This coding is scanned in the locking cylinder by special spring-loaded locking elements. Missing or incorrect codings on the key block the locking process during locking attempts. The additional undercut in the key profile also ensures a very complex shape of the key and thus increased copy protection. The requirements for technical copy protection of the key as well as protection against unlocking and opening are fulfilled to a very high degree by the blocking wave profile.

This system is available for reorders only.

We offer various systems for new systems
IKON locking cylinder.

IKON SK6 Locking wave undercut extra code

Technical characteristics:

  • 11 (6+5) spring-loaded, actively acting locking elements in accordance with DIN EN 1303 or DIN 18 252 for locking security
  • an additional coding, the locking shaft, is milled into the long sides of the key
  • paracentric key profiles with additional blocking wave coding and undercut for unlocking security
  • drilling protection class 1 (AB = 1) standard
  • very high protection against picking and impact key technology due to additional locking shaft, pin combination and additional locking shaft coding
  • core pins made of wear-resistant special bronze
  • crowned cylinder core head with reinforced key insertion
  • cam made of break-proof, corrosion-resistant nickel silver profile
  • DIN EN 1303, locking security class 6
  • DIN EN 1303, attack resistance class 0, optionally with drilling protection class B/D and pulling protection
  • protected key profile with security card
IKON SK6 SK6 Locking wave undercut extra code cylinder cross section


  • conventional locking system
  • vertical key insertion
  • cylinder body: brass matt nickel plated
  • profiles for general master key and master key systems
  • half cylinder: standard cam position 90° left, cam can be adjusted 8-fold in 45° angle
  • combination with electronics possible at any time using transponder key, also as subsequent extension


  • nickel silver serrated key with square metal armour bow
  • optionally with colour pins in different colours: these can indicate the allocation (e.g. locking authorisations) of the keys, simplifying key management

Operational area:

  • private houses and apartments
  • office and commercial areas
  • wooden doors, tubular frame doors, aluminium doors, etc.
  • only for general master key and master key systems

Special equipment:

  • different cylinder finishes
  • emergency and danger function
  • increased drilling protection class 2 (AB = 2)
  • core extraction protection
  • low-wear version
  • weather protection
  • freewheel

Cylinder finishes:

  • standard finish: brass matt nickel plated
  • optional: brass matt brushed, brass polished
  • for individual design requirements
  • if desired, homogeneous appearance of door cylinder and fitting
  • There may be slight colour deviations between the displayed surfaces and the original colours.
IKON Cylinder finishes

Drilling protection:

Standard drilling protection class 1 (AB = 1):
  • pins made of hardened steel and at least one hard metal pin in the lock cylinder body
Increased drilling protection class 2 (AB = 2):
  • for increased safety requirements
  • reinforced drilling protection through additional carbide pins in the cylinder core and cylinder body
IKON Standard drilling protection

Core extraction protection:

To prevent core or lock cylinder extraction, the core extraction lock is available with extraction protection and integrated drilling protection AB=2 for profile cylinders (VdS approved). The core with core extraction protection is always supplied without surface treatment in nickel silver.

Core pulling lock

Low-wear version:

Locking cylinders that are subject to special loads can be supplied on request in a special design with low-wear core pins.

Weather protection:

  • corrosion-protected version
  • cam and forend screw made of rustproof material
  • surface finish: matt chrome plated

Emergency and danger function:

This function enables the locking cylinder to be locked/opened even if a key with locking authorization is inserted on the opposite side (e.g. for front doors and emergency doors).

Emergency and danger function


Freewheel cylinders are the profile cylinders that have a freely rotating cam (locking cam).
The cam can be turned freely through 360° when no key is inserted.
When the key is inserted, the spring-loaded clutch engages in the cam. This then allows the cylinder to be closed in the conventional way with the key.

  • Usually only necessary for special panic or automatic locks. If in doubt, please check with the door manufacturer.
  • for multiple locking systems with panic function: Latch and bolt must be moved into the cylinder body when the doors are closed. To ensure this, the cam must be able to turn freely.
  • in motor-driven locks and special escape door locks
  • restrictions possible in combination with other optional equipment

Key with coloured pin:

  • with plastic pin in different colours
  • simplifies the management of the keys
  • can indicate the assignment (e.g. locking authorizations) of the keys
IKON Colour pin