What are the different cylinder types available?

Conventional Cylinders - A conventional cylinder is one that requires some breakdown of the lock in order to be removed.

  • These are the most commonly used cylinders sometimes called key-in-lever or key-in-knob.
  • Manufacturer-specific to the lock and lock type, they cannot be exchanged for another in most cases.
  • Can be keyed alike or master keyed so that you can use just one key for multiple locks if needed.
  • Best suited for light commercial applications with a small number of users, such as retail stores and small offices, as well as residential applications that do not require frequent change of cylinders.
Interchangeable Core Cylinders - Interchangeable core (I/C, FSIC, LFIC, SFIC) cylinder offers maximum flexibility to the building owner.
  • Offers all the security advantages of a Conventional Cylinders
  • Whenever a key is lost or stolen, locks can be rekeyed quickly by non-locksmith personnel or the person responsible for building security.
  • A special CONTROL KEY is used to remove and install all cores in the system. The person responsible for building security will go to the door, remove the old core and install the new one with the CONTROL KEY. Security is regained in seconds!
  • There are two main types of interchangeable cores
    • Large size commonly called FSIC (full size interchangeable core) or LFIC (large format interchangeable core)
    • Small size commonly called SFIC or small format interchangeable core

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