Secure Entry for Bank Branches and Cash Centers
A B Grade Vault Door is the standard choice for bank branches, cash processing centers, and commercial safekeeping facilities. This grade meets the requirements of GB37481-2019 for Class B protection. It resists drilling, torch cutting, and forced entry attempts. Financial institutions choose B Grade for its balance of security and cost-effectiveness. Our B Grade Vault Door is built with experience from over 200 banking projects across China.
Solid Construction with Multi-Layer Protection
The door body uses high-quality carbon steel or stainless steel. The door panel thickness exceeds industry standards. The locking mechanism includes UL-certified combination locks imported from the United States. You can also add electronic combination locks, time locks, or biometric systems. Options include fingerprint recognition, palm vein scanning, facial recognition, and iris recognition. The door frame has reinforced bolt work with locking points on all sides. A day gate provides additional access control. The surface finish is smooth and corrosion-resistant. We manufacture every B Grade Vault Door in our 14,000-square-meter factory. Our facility uses CNC cutting and automatic welding equipment. We have 15 years of specialized vault door production experience.
Real-World Performance You Can Trust
B Grade protection means the door withstands 30 minutes of torch attack and 30 minutes of drill attack. The locking system requires dual-person operation for enhanced security. An automatic scrambling device randomizes the combination after each use. This prevents code theft through observation. For added safety, we offer a re-locking device that activates if someone attacks the primary lock. The door closes with a heavy-duty handwheel that engages multiple locking bolts into the frame. This creates a secure seal against prying and impact.
Customization for Your Specific Needs
We understand each facility has unique requirements. The B Grade Vault Door can be customized with a door-within-a-door option. This smaller door allows regular access without opening the main door. Waterproof features protect against flood damage. Smart control systems integrate with existing security networks. Remote monitoring and alarm interfaces come pre-wired. Choose from stainless steel or carbon steel finishes. The door swings left or right based on your layout. Our engineering team works with you to match your exact specifications.

Service and Support You Can Rely On
Our service starts before you buy. We survey your site and provide layout recommendations. During production, we share progress updates and photos. After installation, our nationwide service team stands ready. We respond to issues within 24 hours and arrive on-site within 48 hours. All products have lifetime maintenance. Spare parts are always available. The People's Insurance Company of China covers every vault door we make. Our repurchase rate exceeds 85%. Choose B Grade Vault Door for proven security and reliable support.
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product Specification
|
Parameter |
Specification |
|
Protection Grade |
Class B (meets GB37481-2019) |
|
Main Materials |
High-quality carbon steel / Stainless steel (optional) |
|
Door Thickness |
≥150mm (door body) |
|
Steel Plate Thickness |
Door panel ≥6mm, door frame ≥8mm |
|
Lock Configuration |
3 UL-certified combination locks (standard) |
|
Optional Lock Types |
Electronic combination lock / Time lock / Biometric locks (fingerprint, palm vein, facial recognition, iris) |
|
Additional Features |
Day gate / Automatic scrambling device / Re-locking device / Door-within-door / Waterproof |
|
Access Control |
Dual-person operation required |
|
Operating Weight |
≥500kg (depends on size and configuration) |
|
Customization |
Left or right swing / Carbon steel or stainless steel finish / Smart control system |
|
MOQ |
1 unit |
|
Lead Time |
25–35 days |
|
Quality Certification |
ISO9001, ISO14001, ISO45001, GA38-2021 |
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