Impact Fenestration
Precision Engineering Portfolio
Engineered OEM Aluminium Doors & Architectural Enclosures
From heavy-duty hurricane-rated fenestration to custom white powder-coated exterior portals, our production base delivers complete custom OEM/ODM solutions tested to European and North American building codes.
Cast Security Portals
Modern High Security Cast Aluminum Entrance Doors for Residential Estates
EN Compliance
European Standard Luxury Aluminum Bi-fold Patio Doors for Luxury Residences
Interior Enclosures
Sliding Moisture-Resistant Aluminium Door & Window System with Grill Inlay
Acoustic Rated
Direct Factory Soundproof Triple-Glazed Aluminum-Clad Front Casement Door
Panoramic Slider
Heavy Duty Reflective Low-E Glass Aluminum Sliding Doors with Integrated Screen
Commercial Architectural
Commercial Aluminium Smart Switchable Glass Hurricane Storefront Door Assembly
Minimalist Frame
Customized Panoramic Double Insulated Glazing Aluminum Balcony Entry Door
Industry White Paper Analysis
Engineering Precision in Custom OEM White Aluminium Doors
An authoritative engineering breakdown of alloy metallurgical purity, Qualicoat Class 2 white powder metallurgy, multi-cavity thermal containment, and strict compliance with EN 14351-1.
Architectural white aluminium doors represent one of the most demanding sub-disciplines in exterior fenestration manufacturing. Unlike darker anodized or generic charcoal powder coatings that visually mask underlying surface anomalies, high-reflective whites—specifically RAL 9016 (Traffic White), RAL 9010 (Pure White), and RAL 9003 (Signal White)—require extreme metallurgical discipline, zero contamination during chemical pre-treatment, and ultra-durable fluoropolymer or TGIC-free polyester chemistry to avert photo-oxidation, yellowing, and chalking across decades of high-UV solar exposure.
At our 180,000 m² Foshan manufacturing compound (Guangdong Dejiyoupin Doors and Windows Co., Ltd. / DERCHI), our OEM custom manufacturing processes engineer each door leaf from prime primary 6063-T5 and 6063-T6 architectural aluminium billets. By rejecting recycled scrap extrusion blends in structural frame members, we eliminate trace copper and iron impurities, guaranteeing structural tensile strengths exceeding 215 MPa and ensuring a 100% uniform surface for micro-etching and conversion coatings.
Qualicoat Class 2 & AAMA 2605
Our electrostatic powder lines apply superdurable architectural powders at 60–80 µm thicknesses. Verified under 3,000-hour accelerated QUV testing to retain over 90% gloss and Delta E < 0.5 color stability against solar bleaching.
PA66 GF25 Polyamide Thermal Break
Utilizing Technoform 24mm to 34mm multi-chambered polyamide strips reinforced with 25% glass fiber. This isolates inner and outer aluminium skins, achieving overall thermal transmittance ratings as low as UD ≤ 0.82 W/(m²·K).
Integrated Multipoint Anti-Intrusion
Heavy-duty German-engineered multi-point locking gear coupled with structural steel deadbolts and continuous anti-lift rebate profiles. Independently certified to meet European EN 1627 RC2 and RC3 burglar resistance ratings.
Technical Specification & Engineering Matrix
B2B developers, general contractors, and facade engineers require verifiable data matrices to balance structural loads, acoustic attenuation, and localized building regulations. The following engineering matrix provides baseline benchmarks across our OEM white aluminium door assemblies:
| Engineering Attribute | Standard Specification | High-Performance / Coastal Option | Test / Compliance Standard |
|---|---|---|---|
| Alloy Composition | 6063-T5 Architectural Billet | 6063-T6 / Structural 6061-T6 Reinforcements | EN 573-3 / ASTM B221 |
| Wall Thickness | 2.0 mm (Residential) | 2.5 mm – 3.2 mm (Commercial / High Traffic) | GB/T 8478 / EN 12020-2 |
| Powder Coating | Architectural Polyester (RAL 9016 / 9010) | Qualicoat Class 2 PVDF Fluoropolymer | Qualicoat / AAMA 2604 / AAMA 2605 |
| Thermal Transmittance (UD) | 1.2 – 1.4 W/(m²·K) (Double Glazed) | 0.82 – 0.98 W/(m²·K) (Triple Low-E Argon) | EN ISO 10077-1 / EN ISO 10077-2 |
| Air Permeability | Class 3 (≤ 9 m³/h·m²) | Class 4 (≤ 3 m³/h·m²) EPDM Quad-Seal | EN 12207 / AS 2047 |
| Watertightness | Class 7A (300 Pa) | Class 9A / E1050 (1050 Pa Hurricane Threshold) | EN 12208 / ASTM E331 |
| Acoustic Attenuation (Rw) | 34 dB – 37 dB | 42 dB – 46 dB (Acoustic Laminate Glass) | EN ISO 717-1 / ASTM E90 |
| Hardware Rigidity | 100,000 Cycle Tested Hinges | 300,000 Cycle Heavy-Duty Pivot / Concealed Bearings | EN 1935 / EN 12209 |
Strategic Sourcing Analysis
Future Procurement & Manufacturing Trends (2026–2030)
How architectural evolution, decarbonization targets, and smart automation are reshaping the procurement landscape for OEM white aluminium door assemblies.
1. Decarbonized Low-Carbon Billets
Global developers face strict Scope 3 embodied carbon limits. Future tenders require certified low-carbon primary smelting (≤ 4.0 kg CO2/kg Al) powered by hydropower. DERCHI integrates hydro-smelted virgin aluminium with Environmental Product Declarations (EPDs) to support BREEAM and LEED v4 Platinum certifications.
2. Concealed Automation & Smart IoT
Architects increasingly demand invisible technology. The market has shifted rapidly from surface-mounted electric strikes to fully concealed motorized multi-point locks integrated inside the thermal break profile, connected via biometric fingerprint sensors, 3D facial recognition, and BACnet/KNX building management systems.
3. Ultra-Slim Profiles & Massive Openings
Demand for oversized pivot and sliding portals (heights exceeding 3.5m and widths up to 2.2m per leaf) has surged. Procurement teams specify high-moment-of-inertia stiffeners and customized white finishes that resist wind deflection up to 3000 Pa (N6 rating compliant under Australian AS 2047 and European EN 12210 Class C5).
Manufacturing Competence
25+ Years of Dedicated Door Engineering Excellence
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates from an expansive 180,000 m² industrial park in Foshan, China. Ranked among China's top tier architectural fenestration brands, we maintain complete vertical control over every fabrication process: extrusion precision cutting, CNC multi-axis milling, automated corner-crimping, continuous automated powder coating, and pre-shipping trial assemblies.
Selected by leading European contractors—including long-term UK Schüco installation partners—for luxury villa developments, our factory provides direct technical coordination with English-speaking facade engineers, complete CAD shop drawings, and certified performance testing before containerized loading.
180,000
m² Production Base
600+
Engineers & Specialists
100+
Global Patents & Certs
25+
Years Industry Authority
Compliance & Quality Control
Certified Quality for Tenders and Handover Inspections
Every custom white aluminium door manufactured in our facility is subjected to rigorous quality audits under our ISO 9001 quality management framework. We supply full testing documentation to support your Declaration of Performance (DoP) under European Standard EN 14351-1, Australian AS 2047, and American NFRC/AAMA ratings.
Includes verified compliance for EN 1634-1 fire containment, EN ISO 717-1 acoustic ratings, and EN 1627 RC2/RC3 burglar protection.
Production Transparency
Standardized OEM/ODM Six-Stage Manufacturing Protocol
From initial architectural CAD shop drawings to export crating, our turnkey engineering pipeline eliminates project variance and guarantees precision tolerances ±0.5mm.
01. BIM & CAD Engineering
Our senior facade engineering team converts your architectural elevations and schedule into structural cross-section shop drawings and structural wind-load calculations.
02. Precision Extrusion & Coating
Primary 6063-T6 profiles are cut on multi-axis CNC machining stations, inserted with PA66 GF25 strips, and electrostatically finished in cleanroom conditions.
03. 100% Pre-Assembly Trial
Each custom door undergoes complete trial dry-fitting: multipoint locks, pivot bearing alignment, continuous EPDM sealing, and squareness checks within 0.5mm tolerance.
04. Marine-Grade Export Crating
All leaves are enveloped in protective peelable films, edge-padded with high-density EPE foam, and sealed in fumigated steel-braced plywood containers for zero-defect transit.
Technical Procurement Clearinghouse
Frequently Asked Questions for Sourcing & Procurement Teams
Detailed answers addressing metallurgical specifications, finish warranties, logistics, and compliance requirements for custom OEM aluminium white door projects.
How do you prevent white powder-coated aluminium doors from yellowing and chalking?
Color degradation in architectural white finishes is primarily triggered by solar ultraviolet (UV) radiation breaking down the polymer binder and exposing pigment particles. Our facility utilizes certified Qualicoat Class 2 superdurable polyesters and AAMA 2605-compliant PVDF coatings formulated with inorganic rutile titanium dioxide (TiO2) and advanced hindered amine light stabilizers (HALS). This chemistry guarantees Delta E color variance < 0.5 and gloss retention > 90% over 15 to 25 years in high-solar environments.
Can DERCHI customize thermal transmittance (U-values) for strict building codes?
Yes. We engineer thermal transmittance profiles to comply with Germany's GEG (Gebäudeenergiegesetz), UK Building Regulations Part L, and North American IECC/ASHRAE 90.1. By incorporating Technoform PA66 GF25 multi-cavity thermal break bars (24mm, 34mm, or 42mm), aerogel insulating foam cores, and triple Low-E insulated glazing units with warm-edge Swiss spacers, our engineered systems achieve door U-factors (UD) down to 0.82 W/(m²·K).
What are the minimum order quantities (MOQ) and production lead times for OEM projects?
As a true custom manufacturing facility, we offer flexible MOQ structures: for custom villa or boutique commercial projects, our MOQ starts at 1 custom door system. For large-scale multi-unit developments requiring custom extrusion dies, initial die trial production requires 500 kg extrusion volume. Standard manufacturing lead time is 25 to 35 calendar days following CAD shop drawing sign-off and color sample approval.
How do you guarantee watertightness and air permeability on exposed coastal installations?
We integrate continuous vulcanized EPDM quad-gaskets coupled with multi-tier internal weep holes and baffled pressure-equalized drainage tracks. For high-exposure hurricane regions, our proprietary sill profiles feature concealed sub-sill flashings and motorized drop-down weather seals rated to withstand water penetration up to 1050 Pa (Class E1050 / AS 2047 N6).
Do you support European and North American smart entry access hardware?
Our CNC machining centers are pre-programmed to mill lock pockets for world-class architectural hardware ecosystems including Dormakaba, Siegenia, Winkhaus, GU, and Assa Abloy. We seamlessly integrate concealed electric conduit channels through our thermal break profiles to support motorized multi-point locks, POE smart access cards, fingerprint readers, and home automation relays.
What documentation accompanies every shipment for port clearance and building control?
Every container is delivered with complete project documentation: approved CAD as-built shop drawings, Mill Test Certificates (MTC) verifying 6063-T5/T6 alloy composition, Qualicoat coating thickness inspection reports, EN 14351-1 CE Declarations of Performance, glass calibration certificates (EN 12150-1 / ANSI Z97.1), and step-by-step installation manuals.
Initiate Your Custom OEM Aluminium Door Project
Connect directly with our senior fenestration engineers in Foshan. Send your door schedules, CAD specifications, or architectural project elevations for comprehensive DFM analysis, thermal calculations, and factory-direct pricing.