Basic Protection for Your Valuable Assets
The M Grade Vault Door is the entry-level security door in our product line. It meets the GB 37481-2019 and GA 38-2021 standards for bank security. This door provides a strong basic defense against break-in attempts. The door body is 17cm thick and has six layers of protection. These layers include stainless steel, steel plates, and a protective core. The door frame is 22cm thick. It uses 5mm steel with a 1mm stainless steel cover. This structure stops drills, saws, and other tools. The fire resistance rating is 1.5 hours. The door also has an earthquake resistance rating of 8 and an air tightness rating of 6. The lock area has extra 30mm thick drill-resistant steel. This M Grade Vault Door comes with two mechanical combination locks as standard.
Strong Steel Construction Stops Attacks
The door uses a solid steel frame and multi-layer door body. The door panel is 4mm thick steel. The bolts are 38mm thick and lock in four directions. This means even if someone cuts the hinges, the door stays locked. The door also has a day gate. This is a metal grille inside the door. It lets you see and ventilate the space while keeping the vault area safe. You can choose from many lock types. Options include fingerprint, face recognition, iris scanning, and smart control systems. The door opens in different ways. You can have single or double doors. You can also choose inward or outward opening. We make each M Grade Vault Door to fit your exact wall opening size.

Real Solutions for Common Customer Problems
Many buyers worry about installation. We solve this with custom sizing. Many buyers worry about long-term maintenance. We solve this with durable materials and a 15-year production history. Many buyers worry about hidden costs. We solve this with transparent pricing and clear specifications. This M Grade Vault Door works well in many places. Banks use it for their vaults. Museums use it to protect valuable artifacts. Jewelry stores use it for their inventory. Courier companies use it for cash storage. Government offices use it for classified documents. Private villas use it for personal safes. You can add many optional features. Options include anti-panic handle, through-handle, relocking device, waterproof seal, damper, lift sill, and emergency escape door. Hebei Xinrui has over 15 years of experience making security products. We hold ISO9001, ISO14001, and ISO45001 certifications. We also have military quality management certification. Our 26 patents and 10 software copyrights show our commitment to quality.
one-stop solution
professional team
high quality
product Specification
|
Parameter |
Specification |
|
Protection Level |
M Grade (GB 37481-2019 / UL 608 Class M) |
|
Break-in Resistance |
≥15 minutes net working time |
|
Fire Resistance |
≥1.5 hours |
|
Door Thickness |
17cm (6-layer composite) |
|
Frame Thickness |
22cm (5mm steel + 1mm stainless) |
|
Earthquake Rating |
Grade 8 |
|
Air Tightness |
Level 6 |
|
Lock Configuration |
2 UL-approved mechanical combination locks |
|
Opening Type |
Single / Double / Inward / Outward / Sliding |
|
Optional Features |
Anti-panic handle, through-handle, relocking device, waterproof seal, damper, lift sill, emergency escape door |
|
Applications |
Bank vaults, museums, jewelry stores, cash couriers, government offices, private villas |
Hot Tags: m grade vault door, China m grade vault door manufacturers, suppliers, factory

