Vault doors are specialized security doors used in high-security locations, commonly found in banks, museums, and jewelry stores.
The security system of a vault door is based on a combination of physical structure and materials science. The door body, primarily made of stainless steel, utilizes a multi-layered composite structure (such as steel plate + fireproof layer + drill-resistant layer) to enhance its resistance to damage. Its core technologies include: an anti-theft locking system (usually equipped with multiple mechanical combination locks or electronic locks), a fire-resistant and heat-insulating layer (capable of withstanding high-temperature environments), a waterproof sealing design (preventing water immersion from damaging internal items), and cut- and drill-resistant structures (using special alloys or hard materials to prevent tool damage). For example, a Class C vault door must pass national security certification and meet the highest standards in indicators such as resistance to forced entry and fire resistance.
