Metal Fire Shaft Door For Escape Fire Zones

Critical Safety Closure for Building Service Shafts

We are a company engaged in manufacturing Metal Fire Shaft Door units, primarily used to secure vertical shafts such as electrical risers, ducting channels, and utility chases. These doors act as passive fire barriers, preventing the spread of flames and smoke through shaft openings in high-rise buildings, commercial towers, and industrial complexes.

Product Configuration and Technical Profile

• Core Fill: Ceramic wool, rockwool, or honeycomb
• Shutter Thickness: 46 mm to 60 mm
• Door Leaf Type: Flush or with louvers for ventilation
• Frame Thickness: 1.2 mm to 2 mm
• Finish: Epoxy or powder-coated surface
• Vision Panel: Optional fire-rated glass
• Lock Options: Key cylinder, mortise, or slam shut lock
• Standards Followed: IS 3614, NBC, BS 476 Part 22

Used in Vertical Safety Applications

Used in diverse industrial applications such as fire-rated electrical risers, lift shaft closures, HVAC duct shafts, fire staircases, mezzanine safety points, and shaft access areas in high-rise apartments, IT parks, substations, and manufacturing units where fire containment is essential.

Production Overview and Fire Testing Protocols

Doors are manufactured using precision-bent steel panels reinforced with edge stiffeners. High-temperature insulation cores are bonded within the leaf cavity. The frames are CNC profiled for square-edge sealing. All models undergo furnace testing, hose stream testing, thermal expansion analysis, and mechanical swing tests. Certified as per national and international safety norms.

Installation Method and Handling Procedure

Fix the door frame using fire-rated anchor bolts. Fill joints with intumescent sealant. Install shutter on heavy-duty stainless hinges. Ensure plumb and level alignment before securing locks and handles. Mark the door with shaft identification and fire rating labels. Test the swing function and seal compression post-installation.

Maintenance Insights for Safety Readiness

Inspect hardware, locks, and seals quarterly. Clean dust or paint residues using mild cleaning agents. Grease hinges to maintain a smooth swing. Replace intumescent seals every 2–3 years or post-fire event. Ensure unobstructed access to all shaft doors as part of building compliance.

Advantages of Industrial and Building Fire Management

• Prevents vertical fire spread in shaft zones
• Robust steel structure with fire insulation
• Space-saving flush mounting design
• Custom options with louvers or glass panels
• Approved under multiple safety certifications