C Grade Vault Door

A C Grade Vault Door represents the highest level of physical security available. This grade meets the strictest requirements of GB37481-2019 for Class C protection. It resists heavy torch attacks, diamond drilling, explosive breaching, and extended forced entry attempts. Central banks, major financial institutions, and high-security data centers rely on C Grade protection. Our C Grade Vault Door uses UL-certified locks and multi-layer armor construction. This is the same grade used for national treasury facilities.

The door body uses advanced composite construction. The outer layer is high-strength carbon steel. The inner core contains hard armor plates and anti-drill materials. Total door thickness exceeds 200mm. The frame has reinforced anchor points set deep into the surrounding structure. Three UL-certified combination locks work in a multi-lock interlock system. All locks must open correctly before the door releases. We also offer four-lock systems for maximum security. The locking mechanism uses heavy-duty bolts that extend into the frame on all sides. A day gate provides controlled access without opening the main barrier.

C Grade protection means this door withstands 60 minutes of torch attack. It resists diamond drill attacks for 30 minutes. The door also resists explosive breaching and hydraulic spreading. A thermal protective layer prevents heat transfer during cutting attacks. The locking system includes a time-delay function. This prevents immediate re-entry after closing. An automatic scrambling device randomizes the combination. The door has a built-in re-locking device that activates if someone attacks the primary locking mechanism. This adds a second layer of defense.

The C Grade Vault Door supports full smart system integration. You can add biometric recognition systems including fingerprint, palm vein, facial, and iris scanners. The control system connects to existing alarm and monitoring networks. Remote authorization allows approved personnel to grant access from off-site. All access attempts are logged with timestamps and user identification. Video integration captures entry events. The system generates alerts for failed access attempts or tampering.

Custom Manufacturing and Full Support

 

Each C Grade Vault Door is custom-built for its specific installation. We survey your site and design the door to match your opening. Options include door-within-door for routine access. Waterproof seals protect against flood damage. Choose stainless steel or carbon steel finish. Our experienced engineers handle the entire process from design to installation. After installation, we provide full service support. We respond to issues within 24 hours and arrive on-site within 48 hours. All products have lifetime maintenance. The People's Insurance Company of China covers every vault door.

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