CISA C2000 Open Keyway Cylinders

CISA C2000 Open Keyway Large Oval Profile Cylinders

How the Open Keyway works

An open keyway does not offer protection against un-authorised copying of the key as the key blanks are easily available. For complete protection from un-authorised duplication of your keys look at Astral Tekno, AP3 and C3000 keyways.


  • All Cylinders: Where more security is required than a lever lock where the exact key for your lock is available from a local hardware store. The CISA key can only be duplicated by taking the original to a locksmith.
  • Double Cylinder: Where keyed entry access is required from both sides of the door.
  • Off-Centred Cylinder: Where a door has a lip at the closing end and the lock has to be morticed off-centre to accommodate the lip.
  • Half/Single Cylinders: Where keyed access is required from only one side of the door.
  • Thumb turn/Knob Cylinders: For convenience, no key is required to operate the cylinder for locking/unlocking the door from inside, simply turn the knob.


Active Security
  • Number of key differs: over 30,000.
Passive Security
  • Push resistance: projecting cam.
  • Drill resistance:
    • Hardened steel pin and driver in first position
  • Anti-picking resistance:
    • Para-centric key way
    • Mushroom type drivers.
Key Arrangement Capacity
  • 1000 different cylinders per MK key (excluding integrated key section capacity).
  • Other key configurations on request.
  • 100 000 cycles (compliant with EN 1303:2005 – Durability Grade 6)
  • Manufactured in conformity with the European Norm EN 1303:2005.
  • Durability Grade 6.
  • Attack Resistance Grade 0.
  • Key Related Security Grade 4.
Security Rating
  • Security
  • Key Arrangement Capacity
  • Reliability
  • Score
Available Finishes
Satin Nickle


Satin Nickle


Available Keying Configurations
  • Key Differed
  • Keyed Alike
  • Master Keyed
  • Grand Master Keyed

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