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UL Certified Steel Fire Doors Manufacturer Quality China Factory and Suppliers

Get high-performance UL certified steel fire doors from a premier China factory. As leading suppliers, we deliver durable fire rated doors for hospitals and factories to ensure maximum safety and strict code compliance.

Our premium UL Certified Steel Fire Doors are precision-engineered to deliver maximum safety and uncompromising durability in high-risk commercial and industrial environments. Serving as a critical life-safety barrier, these doors are specifically designed to prevent the rapid spread of flames and smoke, ensuring essential evacuation time and protecting both personnel and property in strict compliance with international fire codes.

By integrating heavy-duty galvanized steel with advanced UL-listed fire-rated cores, we offer a versatile range of configurations tailored to diverse architectural needs. From standard 30-minute ratings to rigorous 180-minute protection, our fire doors combine professional aesthetics with industrial-grade strength, making them the ideal choice for stairwells, laboratories, and safety-critical zones.

Detailed Parameters

MaterialGalvanized Steel Fire Rating30 mins to 180 mins (Standard 90 Min)
FinishPrime Paint (Customizable) Door Leaf Thickness45mm
Steel Sheet Gauge18-16-14 Ga. (Frame) Infilling OptionsPerlite Board, Honeycomb Paper, Mineral Core
Opening TypeSwing Open Max WidthUp to 4’0’’ (1200 mm)
Max HeightUp to 8’0’’ (2438 mm) ColorCustomized to Project Specs

Key Advantages

UL Listed Certification

Guarantees the highest level of protection and full regulatory compliance for safety-critical architectural zones.

Extended Resistance

Available ratings from 30 to 180 minutes provide critical evacuation windows during emergency fire events.

Galvanized Durability

High-grade zinc coating resists corrosion and wear, ensuring a long lifecycle in harsh industrial environments.

Customizable Cores

Choose from Perlite, Rock Wool, or Honeycomb cores to optimize insulation, weight, and fire resistance.

Professional Finish

Supplied with high-quality prime paint, ready for final top-coating to match any building's interior design.

Precision Engineering

Accurately manufactured dimensions up to 1200mm x 2438mm for a perfect fit in any architectural opening.

Product Gallery

Management Platforms

Quality Control

Strict material inspection for all galvanized steel sheets to ensure precise gauge accuracy.

Production Tracking

Real-time monitoring of the fabrication process from precision cutting to prime painting.

Compliance Audit

Regular internal and external audits to maintain UL listing standards and certifications.

Order Management

Customized tracking for specific project dimensions and filler requirements per order.

Inventory Logic

Optimized storage for standard 90-minute fire doors to significantly reduce lead times.

Logistics Coordination

Secure packaging and specialized shipping to prevent damage to the prime paint finish.

Investment Return Comparison

Comparison FeatureStandard Steel DoorOur Fire-Rated Door
Project Life Span5-10 Years20+ Years (Reduced Replacement)
Safety LevelBasic BarrierUL Certified Fire Block (Insurance Drop)
MaintenanceFrequent PaintingDurable Galvanized Base (Lower OPEX)
ComplianceNon-CompliantFull Fire Code Approval (Faster Permit)
Asset ValueStandardHigh-Spec Safety Asset (Increased Value)

Frequently Asked Questions

Q: What is the difference between a 90-minute and a 180-minute fire door?

The difference lies in the core material density and thickness. A 180-minute door utilizes denser mineral cores to prevent heat transfer for longer periods, typically required for critical stairwells or high-risk industrial zones.

Q: Can these fire doors be customized in size for specific projects?

Yes, we provide full customization for widths up to 1200mm and heights up to 2438mm to ensure a precise fit for your building's architectural requirements.

Q: What are the advantages of using galvanized steel over standard steel?

Galvanized steel features a protective zinc coating that prevents rust and corrosion, significantly extending the door's operational life in humid or outdoor environments compared to untreated steel.

Q: Which door filler should I choose for my specific project?

Choose Honeycomb paper for lightweight, cost-effective needs; Perlite board for superior fire insulation; and Rock Wool/Mineral cores for the highest fire ratings and sound dampening.

Q: Does the prime paint finish mean I need to apply another coat?

Yes, prime paint serves as a high-performance base coat. It ensures the final topcoat adheres perfectly and lasts longer, allowing you to apply specific colors to match your interior design.

Q: Are these fire doors suitable for heavy industrial use?

Absolutely. With available steel gauges up to 14 Ga and high UL fire ratings, these doors are ideal for factories, warehouses, and any industrial facility requiring strict fire safety partitions.

Secure Your Facility with UL Certified Fire Doors Today

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