Fire-Resistant Composite Duct / Steel-Faced Magnesium Fireproof Air Duct

Steel-faced magnesium composite fire-resistant duct adopts sandwich fireproof structure with magnesium core and steel/color steel/galvanized surface. It features excellent fire resistance, high temperature stability, smoke isolation and thermal insulation. Lightweight, high strength and corrosion resistant. Custom sizes and shapes available, widely used for building fire smoke exhaust and fire-rated ventilation systems.

Product Description

The fire-resistant composite duct is constructed with a steel-faced magnesium board and fireproof insulation core, offering superior fire resistance, thermal insulation, and structural strength. Designed for fire smoke exhaust systems, it effectively prevents flame spread and smoke leakage while maintaining stable performance under high temperatures. Suitable for commercial, industrial, and underground ventilation projects.

Materials & Structure

  • Application  Fire Smoke Exhaust, High-Temperature Ventilation, Fire Protection Systems
  • Customization  Yes (OEM / ODM Supported)
  • Core Materials
    • Surface Layer
      • Steel-faced magnesium board
      • Color-coated steel sheet / Galvanized steel(Optional)
    • Core Layer   Fireproof insulation core (Glass Fiber / Magnesium-based fire-resistant material)
    • Structure
      • Composite sandwich structure:
      • Outer metal layer + inner fireproof insulation core
      • Available in single-side or double-side fireproof cladding
      • Supports fabrication of rectangular ducts and custom-shaped fittings
  • Manufacturing Features
    • Flange connection design for strong and secure assembly
    • Reinforced thickened structure for high strength and durability
    • Smooth edges and precise fabrication
    • Custom fabrication of elbows, tees, reducers, and irregular fittings

Performance Features

  • Fire Resistance & Flame Retardancy
    • Fireproof performance meeting fire smoke exhaust system requirements
    • Prevents flame spread and enhances building safety
  • Smoke Control & Thermal Insulation
    • Effectively blocks smoke diffusion
    • Provides excellent thermal insulation and prevents external condensation
  • High Temperature Resistance
    • Magnesium-based materials ensure stability under high temperatures
    • Resistant to deformation during long-term use
  • Noise Reduction
    • Composite structure provides sound insulation, reducing ventilation noise
  • Lightweight & High Strength
    • Lightweight design with strong structural integrity
    • Suitable for complex installation environments
  • Corrosion Resistance  Corrosion resistance suitable for humid and harsh environments
  • Easy Installation
    • Modular flange connection
    • No special tools required, supports on-site adjustment and assembly

Specifications & Customization

  • Duct Types   Rectangular / square ducts and custom-shaped fittings
  • Customization
    • Size, material, and thickness
    • Connection methods
    • Fireproof rating and insulation requirements
    • Processing: Based on drawings or samples

Applications

  • Core Applications
    • Fire smoke exhaust systems
    • High-temperature ventilation systems
    • Fire-rated ductwork projects
  • Applicable Scenarios
    • Commercial Buildings: Shopping malls, office buildings, hotels, restaurants
    • Public Facilities: Schools, hospitals, offices
    • Underground Spaces: Parking garages, subways, tunnels
    • Industrial Facilities: Factories, warehouses, power plants, steel plants, petrochemical industries

Product Advantages

  • Advanced Manufacturing   Precision fabrication ensures consistent quality
  • Excellent Fire Protection Performance  Meets fire safety standards for modern buildings
  • Strong Customization Capability   Adaptable to complex engineering requirements

Key Advantages Summary

  • Superior Fire Resistance: Meets fire smoke exhaust regulations
  • High Temperature Stability: No deformation under extreme conditions
  • Efficient Installation: Lightweight, modular, and easy to assemble
  • Flexible Customization: Suitable for various complex projects

Important Notes

  • This product is fully customized.
  • Please confirm
    • Dimensions and duct type
    • Material and surface options
    • Fire rating and insulation requirements
    • Project application and standards