CISA Astral S Euro Key & Turn Cylinder

The CISA Astral S Euro Key & Turn Cylinder offers high-security protection for residential and commercial doors, combining convenient thumbturn operation with advanced physical security. Designed to resist common forced entry methods, this cylinder features a patented laminated steel segment pack that significantly increases resistance to snapping and extraction.

Engineered with a 10-pin key bitting system, the Astral S provides robust protection against picking, drilling, and bumping. The key and turn design allows you to easily lock or unlock the door from the inside without a key, making it ideal for both daily convenience and emergency escape situations.

This cylinder is available in multiple configurations to suit your door. You can choose from a range of overall body lengths (from 60mm up to 100mm), with various internal and external side measurements (A Side from 30mm to 45mm, and B Side/Turn from 30mm to 55mm). It is also offered in two high-quality finishes: Nickel Plated and Polished Brass. Please select your preferred size, side measurements, and finish from the options below.

Each cylinder is supplied complete with three reversible flat keys, a code card for secure key duplication, and a fixing screw.

Technical Specifications

• Cylinder Profile: Euro
• Cylinder Type: Key & Turn (Thumbturn)
• Mechanism: 10-pin key bitting system
• Key Differs: 16 million differs
• Standards: BS EN 1303:2005
• Fire Tested: Grade B
• Body Material: Brass cylinder body and plugs
• Keys Supplied: 3 reversible flat keys (with code card)
• Finishes: Nickel Plated or Polished Brass (please choose from the options below)
• Sizes Available: Overall body lengths from 60mm to 100mm (please choose from the options below)

Key Features

• Snap Resistant: Laminated steel segment pack increases resistance against snapping and extraction.
• Comprehensive Protection: High resistance to picking, drilling, and bump attacks.
• Thumbturn Convenience: Allows quick and easy locking or unlocking from the inside without a key.
• Reversible Keys: Supplied with 3 flat, reversible keys and a code card for secure key cutting.
• Versatile Options: Available in multiple sizes and finishes to suit your specific door requirements.