Renqiu Zhongsheng Metal Products Co., Ltd. is one of the most professional manufacturers and suppliers of steel open fire-resistant door in China. Please feel free to wholesale durable steel open fire-resistant door made in China here from our factory. All customized products are with high quality and low price. Contact us for pricelist.
Steel Open Fire-Resistant Doors are highly practical fire safety facilities in modern buildings. Unlike ordinary normally closed fire doors, they can remain open for extended periods, making them particularly suitable for high-traffic areas requiring continuous passage, such as shopping malls, office buildings, large stadiums, hospitals, and factories. Many public areas experience frequent foot traffic, and keeping doors constantly closed would impede movement; this door perfectly solves that problem. We have a professional production team and mature customization services, capable of tailoring solutions to the size of openings, passageway environment, and fire safety requirements. Whether for comprehensive installations in new construction projects or fire safety upgrades of older buildings, it is the ideal choice.
In terms of materials, Steel Open Fire-Resistant Doors are constructed entirely of high-quality steel, resulting in a robust and stable structure with strong impact resistance and wear resistance. Despite daily high traffic and frequent contact, they are not easily deformed or dented, ensuring an exceptionally long service life. Furthermore, steel itself is resistant to moisture and rust, allowing them to remain in good condition year-round, even in underground passages, shaded areas on the ground floor, or locations with high humidity, minimizing the need for frequent maintenance and replacement. We can customize the thickness of the steel panels based on the traffic flow and opening span. Thicker panels are used for main passageways with high traffic volume to further enhance sturdiness; standard specifications are used for ordinary passageways, ensuring safety and durability while reasonably controlling the overall cost. The door frame and door leaf are tightly joined with fine workmanship, ensuring overall structural stability.
Fire protection is the core function of the Steel Open Fire-Resistant Door.
All products are manufactured in strict accordance with national fire protection standards, with complete fire resistance ratings, and can successfully pass various fire inspections. The door is filled with special fireproof and heat-insulating material, and the door edges are equipped with high-temperature resistant sealing strips, along with a complete set of fire-specific hardware.
Under normal circumstances, it remains open thanks to a special electromagnetic release device, allowing free passage and air circulation. In the event of a fire in the building, the fire alarm system will trigger the device simultaneously, automatically and smoothly closing the door to quickly seal the passageway.
The sealing strips at the door seams will automatically expand when exposed to high temperatures, sealing all small gaps and effectively preventing the spread of flames and smoke, creating independent fire compartments and buying valuable time for evacuation and rescue operations. The entire linkage system is highly responsive and stable, surviving even in high-temperature environments.
Size, style, appearance, and accessories can all be flexibly customized.
Building passageways vary in size, including many irregular and non-standard openings. We will arrange for on-site measurement to precisely measure and fabricate a Steel Open Fire-Resistant Door according to the actual dimensions. After installation, it will fit perfectly and open and close smoothly. Door types include single doors, double doors, and mother-daughter doors, with single doors for narrow passages and double doors for wide main passages.
The surface can be painted in various colors to match the wall and decoration style, avoiding any jarring appearance. We can also customize electromagnetic linkage devices, manual release switches, and emergency accessories according to management needs, allowing for manual control in case of power outages or malfunctions, making it more flexible to use.
Daily maintenance is very simple.
The smooth steel surface is dirt-resistant; dust and stains can be easily wiped clean with a cloth. The hardware and linkage devices are of high quality, rarely malfunctioning under normal use, requiring minimal maintenance.
From surveying, solution design, and customized production to professional installation and subsequent maintenance, we provide a one-stop, end-to-end service, saving our clients time and effort.
With its advantages of convenient access, reliable fire resistance, robust durability, and strong adaptability, the Steel Open Fire-Resistant Door is now widely used in various public buildings.
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