Hebei Hong'an Fire Door Co., Ltd. is one of the most reliable manufacturers and suppliers of steel fire resistant rolling shutter in China. If you're going to buy durable steel fire resistant rolling shutter made in China, welcome to get free sample from our factory. All customized products are with high quality and low price.
In the evolving landscape of passive fire protection systems, the Steel Fire Resistant Rolling Shutter represents a significant leap forward. As a new-generation product, it is engineered to overcome the limitations of traditional fire shutters-most notably, the dependency on water curtain systems. By eliminating the need for water protection, this shutter reduces installation complexity, conserves water resources, and prevents potential water damage to goods or premises during a fire event. Its robust design, combined with intelligent control features, makes it an ideal solution for commercial, industrial, and high-rise residential applications where uncompromising safety and reliability are required.
Advanced Double-Blade Construction
At the heart of this fire shutter's superior performance lies its unique double-layered composite structure. Unlike single-slat curtains, the Steel Fire Resistant Rolling Shutter consists of inner and outer panels of profiled steel sheets. Between these two layers, a specially formulated fire-resistant insulating material is tightly packed. This core filling acts as a thermal barrier, drastically slowing heat transfer from the fire side to the non-fire side. This design ensures not only long-lasting fire resistance but also excellent thermal insulation, protecting evacuation routes and adjacent compartments.
All curtain slats are manufactured from hot-rolled galvanized steel sheet. The galvanized coating provides inherent corrosion resistance, ensuring long-term durability even in demanding environments. Furthermore, the hot-rolled process enhances the steel's structural rigidity. The resulting advantages are clear: a novel, aesthetically pleasing appearance; smooth and flat surfaces on both sides; high mechanical strength (excellent rigidity); an effective seal against smoke and flame; and highly stable fire-resistant properties that do not degrade over time.
Dual-Action Operation & Intelligent Integration
Functionality is key in an emergency. This fire shutter is equipped with both electrical and manual operation capabilities as standard. Under normal conditions, the shutter can be raised and lowered smoothly via an electric motor controlled by a wall-mounted button or remote. Should a power failure occur, an optional auxiliary manual chain or crank mechanism allows for swift opening or closing, ensuring accessibility at all times.
Crucially, the shutter is fully compatible with modern building automation systems. It features integrated terminals for direct connection to smoke detectors, heat detectors, and fire alarm loops. Upon detecting a verified fire condition, the shutter can be programmed to automatically descend to its closed position, containing the fire and limiting oxygen supply. Additionally, a centralized Fire Control Room (FACP) can override local commands, allowing security or fire personnel to manage every shutter in the building remotely-closing, opening, or holding them at intermediate positions as emergency tactics evolve.
Verified Technical Performance
To meet stringent international safety codes, the Steel Fire Resistant Rolling Shutter has been tested to the following critical standards:
Fire Resistance Limit
≥ 4 hours. This duration provides ample time for building evacuation and fire brigade response, meeting the highest requirements for fire compartmentation.
Heat Radiation Intensity
≤ 0.39 W/cm². At this low level, the unexposed side of the shutter remains cool enough to prevent secondary ignition of nearby materials, such as paper, fabric, or fuel, significantly enhancing life safety.
Smoke Containment
Under a differential pressure of 20 Pa, the curtain's leakage rate is less than 0.2 m³/(m²·min). Smoke is the primary cause of fire fatalities; this superior sealing performance minimizes smoke spread through door openings.
Wind Load Resistance (Type 80 Slat)
With a clear opening width of 3 meters (B=3m), the mid-span deflection is ≤45 mm. This ensures the shutter remains operational and intact even under high air pressure variations within buildings or external wind loads.
Operational Speed:
Motorized opening/closing: 2 m/min to 7.5 m/min (adjustable).
Gravity descent speed (emergency/manual mode): ≤9.5 m/min, ensuring controlled, safe closing without excessive speed that could cause injury or impact damage.
Conclusion
The Steel Fire Resistant Rolling Shutter combines robust engineering with intelligent fire detection integration. By eliminating water curtains, offering dual manual/electric control, and delivering verified 4-hour fire protection with minimal heat radiation and smoke leakage, it provides a complete, reliable, and modern solution for fire compartmentation. Whether required for warehouse separations, parking garage entries, retail storefronts, or industrial corridors, this shutter is an investment in safety, durability, and peace of mind.
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