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Arcas Gruber designs and manufactures vault doors engineered to protect high-risk and restricted spaces such as vaults, panic rooms, and secure bunkers. These doors represent the highest level of physical access protection, acting as the primary barrier against burglary, forced entry, and sophisticated attacks.
All Arcas Gruber vault doors are certified according to UNE EN 1143-1, ensuring proven resistance levels recognised across Europe and internationally.
What Is a Vault Door?
A vault door is a heavily reinforced security door specifically designed to protect critical enclosures such as vaults, panic rooms, secure bunkers, and controlled-access rooms.
Unlike conventional security or metal doors, vault doors are tested as complete security elements under laboratory conditions and certified according to UNE EN 1143-1, the European reference standard for burglary resistance.
Certified Vault Doors – Grades 3 to 11
Arcas Gruber vault doors are available in security levels from Grade 3 to Grade 11 under UNE EN 1143-1. Each grade represents increasing resistance to mechanical, thermal, and advanced attack techniques.
- Grades 3–5: Secure rooms, retail vaults, and controlled-access areas.
- Grades 6–8: Banks, lottery centres, jewellery vaults, and financial institutions.
- Grades 9–11: Bullion vaults, government facilities, military installations, and strategic infrastructure.
Design and Construction Features
- Multi-layer reinforced steel structure with anti-cut and anti-drill materials.
- Heavy-duty frames designed for structural integration into concrete or modular vault systems.
- Advanced locking systems: mechanical key, digital combination, time-delay locks, or biometric access.
- Optional internal grille gates for double-door security configurations.
- Compatibility with alarm systems, including seismic, thermal, and opening detectors.
- Optional internal lighting, ventilation, and independent communication systems.
Installation and Certification Integrity
Vault doors must be installed by qualified professionals to maintain their certified resistance level. Improper installation can compromise security and invalidate certification.
Arcas Gruber provides professional installation services across Europe, ensuring correct anchoring, alignment, and integration with vault structures in full compliance with UNE EN 1143-1.
Applications of Vault Doors
- Commercial and institutional vaults
- Panic rooms and private bunkers
- Lottery agencies and jewellery facilities
- Embassies, police, and government buildings
- Critical infrastructure and high-security storage areas
Integration with Other Security Solutions
Vault doors are commonly installed as part of a complete high-security system together with:
Why Choose Arcas Gruber Vault Doors?
- UNE EN 1143-1 certified vault doors from Grade 3 to Grade 11
- Over a century of expertise in high-security manufacturing
- Custom sizes, finishes, and locking configurations
- Technical consultancy from design to installation
- Proven solutions trusted by banks, governments, and security institutions
Contact Our Security Experts
If you are planning to install or upgrade a vault door, our technical team will assist you with specification, certification selection, and implementation.
Contact Arcas Gruber for professional advice and a tailored security proposal.



