CISA Astral S (Snap Resistant) cylinders are the ideal solution for anyone who needs a secure cylinder with excellent protective features against cylinder extraction.
+ 40% resistance to extraction and tearing thanks to the Snap Resistant feature, a dual-material steel core.
High resistance to bumping (percussion), thanks to the BKP (Bump Key Power) patented device.
High drill resistance key bitting system in hardened steel.
What will I need?
A screwdriver, A hammer
How do I switch my cylinder lock?
Open your door. Now you have an open view onto the latch and the deadbolt with which the door is securely locked. Below the deadbolt, there is a retaining screw that holds the cylinder tightly in the mortise lock. You will have to first loosen it (do not yet remove it).
Now insert the key into the existing lock. Turn the key gently in the clockwise direction to approximately 1 o’clock. Now remove the retaining screw completely and you will now be able to quite gently pull the cylinder out with the inserted key.
In the next step, the new key is to be inserted into the new cylinder. Turn the key far enough that the so-called “tappet” no longer projects and it will be possible to insert the new cylinder into the lock without any problem.
As the final step, reinsert the retaining screw under the deadbolt and tighten it. Now your new cylinder is ready to use!
10-pin key bitting system (6 active, 4 passive)
Brass body with Snap Resistant dual-material core
Brass plugs Pins in carbonitrided steel
Drivers in hardened steel
Phosphor bronze and steel springs
Clutch-type cam for emergency function
Flat reversible In nickel-plated brass
Numerical code on key bow
Supplied as standard:
Operating and maintenance instructions
In compliance with EN 1303:2005
Snap Resistant Core: Europe EP1583878, Russia RU2361989