Product Summary

The dormakaba quattro plus cylinder range, with its patent protected reversible key, is designed for all applications where security, durability and strict factory key control are paramount.

With its interchangeable core system, quattro plus offers extensive flexibility allowing the cylinder core to be inserted into a range of locking solutions from camlocks, keyswitches and padlocks. This also gives dormakaba quattro plus the ability to master key across various applications and locations making it a powerful and efficient locking system. 

  • Patent protected until 2033
  • Keys are only available direct from dormakaba for maximum security
  • The reversible key can be inserted from either side and has no sharp edges that damage pockets and purses
  • Choose from two different key shapes and up to 12 different key clip colours
  • High security - quattro plus lock cylinders are safe against picking and the bumping method

Product Details

International 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 Europrofile, 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

Standard Finishes:

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

On request:

  • Polished Brass (MP)
  • Chrome Plated (CR)
  • Dull Chrome (CRM)
  • Polished Chrome Plated (CRP)
  • Medium Brown (BM)
  • Dark Brown (BD)
  • Chemically Nickel Plated (NIC, salt water resistant)
  • Antique Brass (MSA)

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 on up to 22 tumbler pin pairs on up to 44 possible positions
  • more than 2 trillion possible keyings
  • Suitable for large 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 metal armour key suitable for security door hardware and multiple point locks (LR)
  • All keys are made of nickel silver for wear resistance and excellent gliding quality
  • dormakaba quattro 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.

  • Thermally insulated cylinders for "passive" house construction
  • 6 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
  • Installation and maintenance instructions
  • Cylinder fastening screw (for door cylinders)


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

  • Business and industrial sites
  • Rail
  • Valuables in transit
  • Utilities
  • Retail & display
  • Commercial, office buildings
  • Museums
  • Central Government / MoD
  • Public transport
  • Marine
  • Lift and escalator control
  • Control panels

Lock cylinder dormakaba quattro plus
reversible key dormakaba quattro plus
Reversible key with LargeKey Clip - quattro plus

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