100 cm Swiss Concrete-Filled Gas-Tight Blast Door

A 100 cm Swiss Concrete-Filled Gas-Tight Blast Door is one of the most advanced and durable civil defense shelter doors available, designed under strict Swiss bunker standards, which are globally recognized for their robustness and reliability. At 100 cm (approx. 39 inches) thick, this type of door combines massive reinforced concrete infill, heavy steel plating, and precision gas-tight sealing, ensuring protection against extreme blast forces, fragmentation, radiation, and CBRN threats.

🔒 Key Features

1. Massive Blast Resistance

• 100 cm thickness with a steel outer shell filled with reinforced high-density concrete.

• Tested to withstand extreme blast overpressure from bombs, missiles, and shockwaves.

• Fully integrated into reinforced concrete walls for maximum structural integrity.

2. Gas-Tight Protection

• Equipped with high-grade chemical-resistant gaskets.

• Ensures airtight sealing to prevent penetration of toxic gases, smoke, or biological/chemical agents.

• Designed to work with NBC/CBRN air filtration and overpressure systems.

3. Ballistic & Radiation Shielding

• Provides ballistic resistance against small arms and shrapnel.

• Dense concrete core delivers natural radiation shielding, critical for nuclear fallout protection.

4. Locking System

• Heavy-duty multi-point locking bars with compression mechanism.

• Lockable from inside for occupant safety; optional dual-access systems available.

• Designed for quick sealing in emergency conditions.

5. Construction & Durability

• Outer shell: Hardened steel, precision-welded.

• Core: Reinforced concrete (100 cm) engineered for energy absorption.

• Finish: Corrosion-resistant epoxy or powder coating for underground longevity.

• Weight: Several tons, requiring specialized installation equipment.

⚙️ Typical Specifications

• Door Thickness: 100 cm (39″).

• Weight: 5–10 tons depending on dimensions.

• Standard Clear Opening: Personnel doors (80–100 cm wide); larger custom cargo doors available.

• Frame: Welded steel, permanently anchored into reinforced concrete.

• Seal: Gas-tight compression gaskets.

• Compliance: Built to Swiss Civil Defense Shelter Standards – among the highest globally.

🛡️ Applications

• Swiss civil defense bunkers & fallout shelters

• Military and strategic command centers

• Government continuity-of-operations facilities

• Nuclear power plants & critical infrastructure protection

• Private ultra-secure panic rooms, luxury shelters, and vaults