fire rated steel doors

LG37S Hot-rolled steel series

Produced with hot-rolling technology, the 37 Series delivers a bold and solid profile with exceptional structural stability. Its clean, powerful lines make it ideal for expansive floor-to-ceiling windows, public architecture, and industrial-style projects, creating a strong visual presence and architectural impact.

LG50S Cold-bent steel series

Formed through advanced cold-bending techniques, the 50 Series is distinguished by its slim and refined profile, combining strength with lightness. It is best suited for interior partitions, fine window divisions, and minimalist modern spaces, offering both stability and a sense of elegance.

LG65S Thermal-break steel series

With integrated thermal-break technology, the 65 Series combines the inherent strength of steel with superior insulation and soundproofing performance. It is particularly suited for villas, luxury residences, and high-performance commercial spaces, ensuring both comfort and long-term durability.

steel-look thermal-break aluminum alloy

Built on lightweight aluminum alloy with thermal-break design, the 65 Steel-look Series replicates the authentic appearance of steel while offering aluminum’s advantages of corrosion resistance, insulation, and reduced weight. Perfect for modern homes, apartments, and design-focused spaces, it balances performance with distinctive aesthetics.

Shanghai

Shanghai

Beijing

Shanghai

Shanghai

Shanghai

London

London

Australia

Qingdao

London

America

Engineered for Life-Safety and Structural Integrity
Fire rated steel doors are critical components in modern fire protection systems, designed to compartmentalize flames and smoke during emergencies. Unlike wooden or composite alternatives, fire rated steel doors maintain structural stability at temperatures exceeding 800°C due to their galvanized steel facings (0.8–1.5mm thick) and non-combustible cores (e.g., rock wool, perlite). These fireproof metal doors comply with global certifications including UL 10C (US), EN 1634-1 (EU), and GB 12955-2008 (China), ensuring code compliance for commercial buildings, hospitals, and industrial facilities.

Technical Specifications & Certifications

• Fire Ratings: Options from 30 mins (Class C) to 180 mins (Class A), tested for integrity (E), insulation (I), and smoke control (S). Fire rated steel doors achieve 90+ minutes in high-risk zones like stairwells.

• Material Composition: 16-gauge steel frames with intumescent seals (expand 10x during fires) and fire-resistant glazing (e.g., 5mm wired glass or Pilkington Pyrostop®).

• Acoustic & Thermal Performance: Sound transmission reduction up to 40 dB (STC 50+), U-values ≤0.32 for thermal efficiency.

Core Advantages Over Alternatives

• Uncompromised Safety: Intumescent seals and self-closing mechanisms automatically activate during fires, sealing gaps within seconds. Fire rated steel doors withstand 2–3x longer fire exposure than wooden equivalents.

• Durability & Cost Efficiency: Powder-coated finishes resist corrosion and UV damage. Fire rated steel doors require only biannual hinge lubrication, cutting maintenance costs by 60%.

• Custom Security Integration: Compatible with panic bars, electromagnetic locks, and access control systems for high-security sites like data centers or laboratories.

Industry Applications
Fire rated steel doors adapt to diverse environments through flexible configurations:

• Healthcare: Seamless stainless steel surfaces for hygienic, chemical-resistant barriers in ICU/OR rooms.

• Industrial: 2.5mm-thick steel facings with impact-resistant cores for factories and warehouses.

• Public Infrastructure: ADA-compliant designs with vision panels for schools and airports.

Customization & Compliance

• Size Flexibility: Standard widths 860–960mm; heights 1970–2100mm (custom sizes up to 25×7m for hangars).

• Finishes & Glazing: Electrostatic powder coating in 50+ colors; optional tempered, laminated, or argon-filled glass.

• Certification Labels: UL/CE/CCCF marks engraved on hinges for traceability.

Installation & Maintenance Protocols

• Professional Installation Required: Frame alignment within 1.5mm tolerance ensures fireproof seals activate correctly. Fire rated steel doors must pass post-installation smoke tests.

• Maintenance Checklist:

• Quarterly inspection of hinges/closers.

• Annual seal replacement (EPDM weather stripping).

• Immediate repair of surface scratches with zinc-rich primers.