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China Suppliers Factory: Dujiang Jindun Steel Fireproof Doors for Superior Fire Resistance and Safety
PRODUCTS DETAIL
Material:
Steel-insulated fire-rated doors are crafted from premium galvanized steel sheets, with the door leaf filled with fire-rated insulation material.
Features:
Reasonable structure, smooth and aesthetically pleasing surface, fire-rated, corrosion-resistant, and oxidation-resistant, effectively inhibiting fire spread.
Available Colors/Specifications:
Customizable.
Opening Modes:
Single-leaf, double-leaf, and unequal-leaf configurations.
Applications: High-end buildings, hotels, restaurants, hospitals, industrial plants, shopping centers, entertainment venues, etc.
Specialized Product: Extra-large steel fire-rated doors (3M x 3M), ideal for warehouses and industrial facilities, facilitating easy access for trucks.
TECHNICAL SPECIFICATIONS
| No. | Component Name | Model/Specification |
|---|---|---|
| 1 | Door Leaf |
Material: 0.8mm galvanized steel plate Thickness: 50mm Core Material: High-density, environmentally friendly Fireproof core board |
| 2 | Door Frame |
Material: 1.2mm galvanized steel plate Structure: One-time forming structure |
| 3 | Hinge Plate | Thickness: ≥3.0mm |
| 4 | Surface Treatment |
Electrostatic powder spraying Wood-grain transfer printing for surface finish |
| 5 | Fire Resistance Performance |
Class A: ≥1.5 hours Class B: ≥1.0 hour Class C: ≥0.5 hour |
| 6 | Thermal Insulation Grade | Grade: 4 |
| 7 | Compliance Standard | GB12955-2015 Fireproof Door |
| 8 | Non-removable Component Thickness | Thickness: ≥1.2mm |
| 9 | Reinforced Structural Component Thickness | Thickness: ≥3.0mm |
PRODUCT FEATURES
Outstanding Fire Resistance
Manufactured according to National Standards, steel fire-rated doors come with various fire ratings (e.g., Class A, B, C), capable of withstanding high temperatures for over 210 minutes and effectively preventing fire spread.
Excellent Smoke Sealing
The sealed design of the door frame and leaf, along with high-temperature expansion sealing strips, ensures effective smoke control during a fire, reducing harm caused by toxic fumes.
Durable and Robust
Made with cold-rolled steel plates, offering high compressive and impact resistance while effectively withstanding external forces, thereby extending the service life.
Multi-Layer Structure Design
Filled with proprietary patented fireproof materials (e.g., magnesium oxide, magnesium chloride), enhancing fire resistance, corrosion resistance, and soundproofing for a balance between safety and comfort.
Aesthetic Appearance
Steel fire-rated doors can be customized with various surface treatments (e.g., powder coating, transfer printing) to blend seamlessly with diverse architectural and interior styles.
Convenient Installation & Maintenance
Professionally designed installation process for fast and easy setup; minimal maintenance required without complicated routines.
STRUCTURAL COMPONENTS
Door Frame
Made from cold-rolled steel, ensuring stability and safety.
Door Leaf
Typically consists of double-layered steel sheets filled with proprietary patented fireproof materials (e.g., magnesium oxide, magnesium chloride) for enhanced fire and corrosion resistance.
Sealing Strips
Positioned at the interface between the door frame and leaf; expands under high temperatures to block smoke and flame penetration.
Locks and Hinges
Equipped with high-temperature-resistant locks and hinges, ensuring smooth operation and enhanced security.
How to Choose the Right Steel Fire-Rated Door?
Choosing the appropriate steel fire-rated door is crucial for ensuring fire safety in buildings. Here are some key factors to consider:
1. How do I select the correct Fire Rating?
Understanding Fire Ratings:
Based on National Standards, fire-rated doors are categorized into Class A (120 minutes), Class B (60 minutes), and Class C (30 minutes). Select the rating according to the building’s fire safety requirements.
Applications:
For public spaces with high foot traffic, Class A doors are recommended. For general passageways or storage rooms, Class B or C may suffice.
2. What material and structure features should I check?
Door Leaf Material:
Opt for high-strength cold-rolled or hot-rolled steel sheets for durability and impact resistance. Fireproof materials like rock wool enhance fire performance.
Sealing Design:
Ensure proper sealing between the door frame and leaf. High-temperature expansion sealing strips significantly improve smoke and flame resistance.
3. What Standards and Certifications are required?
Check Certifications:
Verify compliance with national and industry standards (e.g., Building Fire Protection Code, Steel Fire-Rated Doors). Request quality inspection reports from suppliers.
Brand Reputation:
Prefer reputable brands known for quality and after-sales support.
4. What are the installation requirements?
Professional Installation:
Ensure installation is performed by qualified professionals to maintain performance and sealing. Look for suppliers that offer installation services.
Compatibility:
Confirm door dimensions align with the building’s door frame for proper fit.
5. Can the design and aesthetics be customized?
Surface Treatment:
Select finishes (e.g., coating, lamination) for visual appeal and corrosion resistance.
Color and Style:
Match the door’s design to the overall architectural style for seamless integration.
6. How should I balance budget and after-sales service?
Price & Value:
Balance quality and cost. While high-quality fire-rated doors may have a higher upfront cost, they reduce long-term maintenance and replacement expenses. Evaluate fire resistance, materials, and services.
After-Sales Support:
Understand the warranty terms, including coverage duration and details. Choose suppliers offering regular maintenance and inspection services to ensure long-term safety.