China Wholesale Aluminum Exterior Doors Manufacturer & Supplier

Engineered Architectural Doors, Thermal Break Systems, Hurricane Impact Glazing, and Precision Metal Fabrication for Global B2B Commercial & Commercial-Grade Residential Construction Projects.

Product Catalog

Architectural Aluminum Exterior Door & Window Systems

Explore our certified high-performance entrance systems, motorized skylights, hurricane-proof sliding doors, and structural aluminum architectural profiles manufactured for export worldwide.

OUNA Commercial Project Aluminum Skylight Extra Large Size
OUNA Commercial Project Aluminum Skylight Extra Large Size and High Load Capacity Custom Design with Robust Motorized System
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OUNA NFRC USA Project Double Glazed Sliding Windows
OUNA NFRC USA Project Double Glazed Sliding Windows Low-E Glass Thermal Break Aluminum Sliding Window With Mosquito Net
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OUNA High Quality Customizable 8x7 Modern Electric Garage Door
OUNA High Quality Customizable 8x7 Modern Electric Garage Door Hurricane Resistant Full Board Galvanized Steel Wholesale
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OUNA Hurricane Proof Outdoor Double Tempered Glass Sliding Windows
OUNA Hurricane Proof Outdoor Double Tempered Glass Sliding Windows French Style Apartment Aluminum Window
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OUNA Residential Project America Aluminum Security Doors
OUNA Residential Project America Aluminum Security Doors for Villa Exterior Front Entry Anti Theft Main Door
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OUNA Modern Flush Mount Garage Door Sleek Aluminum Design
OUNA Modern Flush Mount Garage Door Sleek Aluminum Design Custom Sizes Available Automatic Electric Operation for Houses
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OUNA Insect Screen Integrated Aluminum Louvre Blades
OUNA Insect Screen Integrated Aluminum Louvre Blades Allows Unrestricted Ventilation While Blocking Bugs Ideal for Tropical Area
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Aluminum Exterior Louver Sun Shade for Windows
Aluminum Exterior Louver Sun Shade for Windows and Balcony Adjustable Blades for Sun Control and Air Flow Custom Size
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Industry Whitepaper & Technical Report

Enterprise Infrastructure & Global Manufacturing Capacity

Founded in 2015, Chengdu Zenit Window & Door Co., Ltd. operates a state-of-the-art 25,000-square-meter manufacturing facility dedicated to structural aluminum extrusions, thermal break entrance doors, dynamic skylights, and custom fenestration solutions. Backed by 11 years of deep technical industry expertise and 8 years of seamless global trade experience, the company maintains an annual export turnover reaching $26 million USD.

25,000 m²
Production Facility
$26M+
Annual Export Turnover
35
Dedicated Quality Inspectors
42
R&D System Engineers
600+
Supply Chain Partners

Our primary export destinations encompass North America, Australia, and Western Europe, catering directly to commercial real estate developers, residential home builders, architectural contractors, and Tier-1 building material distributors. Quality control is stringently executed by a specialized team of 35 inspectors who enforce multi-stage testing including structural air permeability evaluation, high-pressure water tightness checks, and computerized frame corner shear-strength testing.

Macro Market Insights

Global B2B Procurement Needs for Aluminum Exterior Doors

Analyzing regional building codes, thermal envelope metrics, structural load pressures, and architectural preferences driving commercial and residential aluminum door imports.

North America (USA & Canada)

Thermal Integrity & Impact Resistance

Procurement across North America demands strict compliance with NFRC (National Fenestration Rating Council) standards for U-factors and SHGC (Solar Heat Gain Coefficient). Furthermore, coastal regions demand hurricane-impact certified entrance systems tested against ASTM E1886/E1996 cycling pressure and large missile impact testing (DP ratings above 50).

Australia & New Zealand

AS2047 & AS1288 Structural Rigor

Australian building codes require explicit adherence to AS2047 for window and door assemblies, evaluating deflection under wind loading, air infiltration, and ultimate water penetration limit (up to 450Pa+). Aluminum alloy profiles (6063-T6) combined with anodized finishes are specified to withstand intense UV radiation and marine-grade corrosion.

Western Europe & UK

Passivhaus & Ultra-Low U-Values

European commercial and multi-family residential directives mandate aggressive carbon reduction targets. Architectural specifications require multi-cavity thermal break extrusions using PA66 GF25 polyamide strips combined with warm-edge triple glazing to achieve overall door U-values below 0.8 W/m²K, alongside CE marking EN 14351-1 compliance.

Engineering & R&D Excellence

Technical Blueprint: Extrusion, Insulation & Glazing Architecture

Over the past year, Zenit’s active R&D division of 42 engineers released 50 new high-performance architectural window and door systems, addressing critical structural and thermodynamic challenges.

Engineering Parameter Zenit Technical Standard / Specification Industry Benchmark Compliance
Aluminum Alloy Profile 6063-T5 / T6 High-Precision Extrusions (Wall Thickness 2.0mm - 3.0mm) ASTM B221 / GB 5237-2017 High Precision Level
Thermal Barrier Technology Polyamide PA66 GF25 (25% Glass Fiber Reinforced Strip Integration) ISO 14001 / EN 14024 Structural Shear Standard
Glazing Unit Assembly Double/Triple Tempered Low-E, Argon Filled (90%+), Warm Edge Spacer IGCC / SGCC Certified, NFRC 100/200 Tested
Surface Treatment Options AkzoNobel Powder Coating, Fluorocarbon (PVDF), Anodized AA15/AA25 Qualicoat Class 2 & 3 / AAMA 2604 & AAMA 2605
Weather Sealing System Continuous EPDM Gasket Seal + Silicone Co-Extrusion Weatherstripping ASTM E283 Air Leakage & ASTM E331 Water Resistance
Acoustic Insulation (STC) Sound Transmission Class STC 38 to STC 45 (Laminated Acoustic Glass) ISO 717-1 Acoustic Rating Standard

Multi-Cavity Thermal Break Engineering

Unlike standard non-thermal break frames, Zenit’s specialized thermal barrier profiles mechanically lock structural polyamide strips inside dual-chamber aluminum profiles. This isolates outdoor cold/heat transfer, preventing interior condensation, reducing building HVAC electrical loads by up to 35%, and maximizing long-term energy savings for commercial developments.

Heavy-Duty Multi-Point Security Locking

Exterior safety is paramount. Our entry door systems integrate multi-point shoot-bolt mechanisms engineered with high-grade 304 stainless steel hardware. Certified under RC2/RC3 burglar resistance frameworks, these doors provide unmatched protection against forced entry while supporting massive glass sash weights up to 400kg.

Factory Operations & Manufacturing Transparency

Precision Production Facilities & Process Validation

Every step of manufacturing—from raw billet profile cutting to thermal strip threading, automated CNC milling, corner crimping, and final glass insertion—is governed by strict ISO 9001 protocols inside our 25,000m² factory.

Raw Material Inspection
Raw Material
Threading Process
Threading
Precision Cutting 1
Cutting 1
Precision Cutting 2
Cutting 2
CNC Machining Operation 1
CNC Machining 1
CNC Machining Operation 2
CNC Machining 2
Frame Assembly Stage 1
Assembly 1
Frame Assembly Stage 2
Assembly 2
Frame Assembly Stage 3
Assembly 3
Frame Assembly Stage 4
Assembly 4
Hardware & System Debugging
Debugging
Warehouse Storage
Warehouse
Strip Threading Machine
Strip Threading Machine
Double Head Cutting Machine
Cutting Machine
CNC Milling Equipment
CNC Milling Machine
Automated Assembly Line
Assembly Line
Quality Control Department
QC Verification
Debugging Rack
Debugging Rack
B2B Supply Chain Protocol

Global Logistics, Packaging & Compliance Assurance

Exporting heavy architectural glass and extruded aluminum door frames requires flawless packing engineering to prevent surface oxidation, seal degradation, or glass fracture during ocean transport.

1. Multi-Layer Protective Packaging

Profiles are individually wrapped with anti-scratch protective film, corner-shielded with high-density EVA foam, encased in water-resistant shrink wrap, and packed inside fully enclosed fumigation-free ISPM-15 compliant plywood crates.

2. Architectural Shop Drawing Support

Our 42-engineer R&D office provides complete CAD and BIM (Building Information Modeling) drawings for client review, ensuring exact rough opening (RO) dimensions, sill drainage integration, and structural anchor point alignments prior to fabrication.

3. Direct OEM/ODM Wholesale Tiering

Supported by over 600 raw material and hardware supply chain partners, we offer highly competitive factory-direct wholesale pricing, flexible MOQ requirements for mixed-container shipments, and customized hardware branding.

Buyer Knowledge Base

Frequently Asked Questions: Aluminum Exterior Doors Procurement

Technical and commercial answers for architects, general contractors, and door & window importers sourcing from China.

Why choose aluminum exterior doors over vinyl (uPVC) or timber entry doors for commercial projects?
Aluminum exterior doors provide significantly higher structural strength-to-weight ratios than vinyl or timber, allowing for narrower sightlines and larger glass panels (such as floor-to-ceiling bi-fold or sliding doors). Unlike wood, aluminum does not warp, rot, or absorb moisture. Unlike vinyl, aluminum remains dimensionally stable under extreme temperature fluctuations (-30°C to +80°C) and can be finished with advanced PVDF or anodized coatings for 25+ years of exterior durability.
What is the typical production lead time for wholesale custom aluminum exterior door orders?
Standard fabrication lead time is approximately 25 to 35 days following CAD shop drawing approval and deposit confirmation. Custom extrusions requiring specialized anodizing colors or proprietary die creation may add 10-15 days. For large-scale commercial project deliveries, phased container shipments can be scheduled according to construction site progress.
How does Chengdu Zenit ensure thermal efficiency in extreme cold or hot climates?
We integrate multi-chamber PA66 GF25 polyamide thermal breaks combined with low-emissivity (Low-E) double or triple glazing filled with 90%+ Argon gas. Warm-edge composite spacers are used to prevent thermal bridging at the glass perimeter. This configuration reduces the total U-value to as low as 0.8–1.2 W/m²K, satisfying rigorous energy codes across North America and Europe.
Are Zenit aluminum doors compliant with Australian AS2047 and US NFRC standards?
Yes. Our engineering systems are tested and certified to comply with major international fenestration standards, including Australian AS2047/AS1288, North American NFRC/AAMA, and European CE EN 14351-1. Full test reports for air infiltration, water penetration resistance, and dynamic structural wind load testing are available upon request for engineering submittals.
Complete Systems Catalog

Additional High-Performance Aluminum Doors & Skylights

Browse additional customized aluminum door systems, roof access hatches, motorized louvers, and thermal break entrance solutions.

OUNA High Efficiency Windproof Aluminum Windows
OUNA High Efficiency Windproof Aluminum Windows Wholesale Safe Durable Modern Double Glass Aluminum Frame Casement Windows
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OUNA Ultimate Aluminum Skylight Solution Electric Retractable
OUNA Ultimate Aluminum Skylight Solution Electric Retractable Thermal Break with Louver and Flashing Kit for Any Roof Project
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OUNA Aluminum Casement Window Soundproof
OUNA Aluminum Casement Window Tempered Double Glass Thermal Break Soundproof for Residential Building Hurricane Impact Proof
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OUNA Custom Size Aluminum Double Door
OUNA Custom Size Aluminum Double Door with Grid Design Soundproof Glass Door for Residential Entrance
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OUNA Aluminum Roof Access Hatch with Skylight
OUNA Aluminum Roof Access Hatch with Skylight Function Waterproof and Insulated for Ceiling Access and Natural Light Combined
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OUNA AS2047 Modern Slim Aluminum Double Glazed Sliding Door
OUNA AS2047 Modern Slim Aluminum Double Glazed Tempered Glass Balcony Sliding Door Energy Saving Sliding Patio Doors
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OUNA Automatic Aluminum Alloy Overhead Sectional Garage Doors
OUNA Automatic Aluminum Alloy Overhead Sectional Garage Doors Sliding Partition for Residential Villa Use
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OUNA High Quality Modern Design Thermal Break Aluminum Glass Bi-Fold Door
OUNA High Quality Modern Design Thermal Break Aluminum Glass Bi-Fold Door Safe and Stylish Patio Door with Foldable Feature
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