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DOM ix TwinStar Patented high security cylinder with 2-in-1 function and double movable elements on key


DOM ix TwinStar is a mechanical locking system suitable for everyone who wants to have the highest levels of security. It meets the highest demands in terms of certifications and is applicable for homes, offices or privately owned businesses.
You can use the same key for all your doors. When a key gets lost, don’t worry: DOM ix TwinStar cylinder has the 2-in-1 function.


  • 2-in-1 system: DOM ix TwinStar offers the highest security even when losing a key. When a key of the second set is used in the cylinder, the first set loses its authorisation.
  • New generation key: the DOM ix TwinStar key is equipped with two movable discs that prevent unauthorised duplication, even with the most advanced copying techniques. The copy of the key is feasible exclusively from DOM and this guarantees an additional level of protection.
  • Open multiple doors with one key: you can use the same key to open different doors thanks to the same key coding system (Keyed Alike, KA).
  • Manage accesses: you can request a master key system (MKS) to manage the access authorisations to the different areas of your company so that each person can only access the areas of their competence.
  • Patent protection: DOM ix TwinStar is protected by a long-term double patent.
  • Compatible with electronic systems: the key head is compatible with the DOM ClipTag device for use with electronic locking systems.
  • Certified: DOM ix TwinStar meets the highest security standards and is tested and certified by independent institutes.
Reversible Key System
Master Key System
Grand Master Key System
Certification EN 1303
Certification Fire Resistant
Anti Bump Protection
Anti Pick Protection
Anti Pull Protection
Registration Card

Suggested application of use

Airports, Education, Financial, Homes, Hospitals, Industrial, Medium to Large Sized Businesses, Offices, Plants, Public Buildings, Small to Medium Sized Businesses, Hotels


Technical features

Key TypeReversible Key System
Registration CardYes
Total Number of Locking Elements21
MKS PossibilitiesGrand Master Keyed, Master Key, Registered Single Coded
Anti Drill Protection HousingYes
Maximum Number of Lateral Elements10
Maximum Number of Upper Elements9
Number of Active Locking Elements11
Number of Ant Bumping Elements8
Number of Anti Picking Elements8
Number of Moveable Elements2
Number of Passive Elements10
Standard Warranty2 Years
Standard FinishMatt Nickel
Standard Housing MaterialBrass

EN 1303:2015160B0C6B
VdS 2156:1 ClassificationBZ+
Key Patent ProtectionYes
Key Patent Until (year)2036
System Patent ProtectionYes
System Patented Until (year)2036

Standard FinishMatt Nickel
Optional FinishesBright Brass, Bright Chrome, Bright Nickel, Matt Chrome, Matt Brass, Gold, Dark Bronze
Standard Housing MaterialBrass
Number of Keys7
Key MaterialNew Silver
Standard CamDIN
Optional Cams10 Teeth Gear Cams, 14 Teeth Gear Cams , Cam Biffar, Swiss Cam, Spanish Cam 13.2 mm, Cam Corbin, Cam 90°

Optional Accessories

Clip Tag V2

Clip Tag V2

DOM Service Pen

DOM Service Pen


Knob variations

DOM K1 Knob


DOM K2 Knob


DOM K3 Knob


DOM K4 Knob


DOM K6 Knob


Available colors

DOM Cilinder Dull Nickel

01 Dull Nickel

DOM Cilinder Matt Chrome

03 Matt Chrome

DOM Cilinder Bright Chrome

04 Bright Chrome

DOM Cilinder Satin Brass

05 Satin Brass

DOM Cilinder Polished Brass

06 Polished Brass

DOM Cilinder Light Oxidized Bronze

07 Light Oxidised Bronze

DOM Cilinder dark oxidized antique

09 Dark Oxidised Antique

DOM Cilinder Gold Plate

25 Gold Plate

Italian map indicating DOM retailers in the area

Find a dealer

To buy DOM products, duplicate a key or get advice on the security solution that best suits your needs, look for the dealer nearest you.