Product Summary

Patent Protection until 2033

dormakaba stands for reliability, security, highest quality and sustainability. expert plus key blanks, keys and the system are protected by European patent EP2890356B1 until 2033. The registered figurative mark “Mountain Peak” gives expert plus high recognition value.

Dealer System

Authorised dormakaba locksmiths can produce original expert plus lock cylinders and keys on site for quick and reliable service.

  • The reversible key can be inserted from either side and has no sharp edges that damage pockets and purses
  • Choose from three different key shapes and up to 12 different key clip colours
  • With the security card only you may order duplicate keys from your authorised locksmith
  • High security - expert plus lock cylinders are safe against picking and the bumping method

Product Details

Certificates for ­double, single and thumbturn cylinders in Euro profile

  • EN 1303 Key Related Security Grade 6
  • EN 1303 Attack Resistance Grade D when used with security door furniture or with optional steel reinforcement plates
  • EN 1670 Grade 5 (480 Hour) for Corrosion Resistance
  • DIN18252 Grade 82
  • VdS B, BZ and master key systems
  • FZG Cylinders with freewheel cam function in gear operated and emergency exit locks
  • Kitemark (UK) for enhanced security lock cylinders to BS EN 1303:2005
  • Suitable for use in harsh environments such as the Utility and Marine industries

Cylinder types:

  • Double, single and thumbturn cylinders in Euro profile, Swiss round profile, Scandinavian and Union oval profiles, French round profiles
  • Outside and inside cylinders for surface mounted locks
  • Furniture cylinders
  • Furniture locks
  • Camlock cylinders
  • Key switch cylinders
  • Elevator control cylinders
  • Padlocks
  • Window handles and olives
  • Key deposit tubes
  • Key storage cabinets

Surface finishes

As standard:

  • nickel plated (NI = Standard)
  • standard brass (MS)

On request:

  • polished brass (MP)
  • chrome plated (CR)
  • polished chrome plated (CRP)
  • medium brown (BM)
  • dark brown (BD)
  • chemically nickel plated (NIC, salt water resistant)
  • Antique brass (MSA)
  • Dull chrome (CRM)

Technical Details

  • European patent protection until 2033
  • Approved to EN 1303
  • Approved to EN 1670 Grade 5 (480 hour) for Corrosion resistance

High permutation capacity

  • 4 radially arranged pin rows with up to 22 tumbler pin pairs on up to 44 possible positions
  • Over 907 billion possible keyings
  • Suitable for medium to large sized master key systems

Additional burglary protection

  • Optional steel reinforcement plates in the housing and hardened steel pins in the insert and housing protect against forceful entry by pulling and drilling

Keys are available in three different shapes

  • Standard smart key clip in 12 different colours (SK)
  • Large key clip in 7 different colours suitable for security door hardware and multiple point locks (LK)
  • All keys are made of nickel silver for wear resistance and excellent gliding quality
  • expert plus key blanks are protected by patent and are not available in retail


dormakaba cylinders can do more than just lock and unlock doors. With its special functions, dormakaba cylinders can do more than you think:

  • Temporary access for third parties (SAT)
  • Thermally insulated cylinders for "passive" house construction
  • 3 different thumbturn knob shapes
  • Blind on one side
  • Cylinder with electrical contact
  • Priority (the key unlocks from the outside, if a key is in the cylinder on the inside)
  • Double key override allows opening regardless on which side a key is inserted in the lock cylinder.
  • Emergency key (for rescue services)
  • Construction time changes the keying with replacing the lock cylinder
  • Freewheel cam for emergency and gear operated locks
  • Cam with relative movement
  • Cogwheel cam with up to 18 teeth
  • Housing with steel reinforcement plates against pulling

dormakaba Modular
The dormakaba Modular System lets cylinders be rebuilt on site to other lengths or even other cylinder types with little effort. The keying remains unchanged.



Scope of supply

  • Lock cylinder
  • 2 keys supplied as standard (depending on type and country)
  • Security card
  • Installation and maintenance instructions
  • Cylinder fastening screw (for door lock cylinders)


expert plus is ideal for locking systems in the following areas:

  • Business and industrial sites
  • Office and public authority buildings
  • Education establishments
  • Healthcare
  • Hotels
  • Residential homes
  • Apartment buildings

Expert plus Secured By Design
Cylinder lock with reversible key dormakaba expert plus
expert plus

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