AS2047 Double Glazed
Enterprise Product Catalog
Engineered Architectural Fenestration & Aluminium Systems
Precision-manufactured in our 180,000 m² Foshan production base. Rigorously tested to Australian AS 2047, European CE, and North American NFRC/CSA standards for residential, hospitality, and high-security architectural developments.
Anti-Theft Security
Energy Efficient Anti-Theft Vertical Lift Sliding Double Hung Glass Windows
Hurricane Impact
ZEKIN Hurricane Impact Heat & Sound Insulation Double Tempered Glass Bi-Fold Doors
Slim Frame NFRC
AS2047 Villa Slim Frame Waterproof Double Glazed Push-Out Casement Systems
Cast Aluminium Luxury
Luxury Cast Aluminum Heavy Double Entry Door Anti-Rust Anti-Corrosion Finish
Slide-Lifting Design
WANJIA NFRC CSA Slide-Lifting Thermal Insulation Frameless Patio Sliding Doors
Bi-Fold Waterproof
Professional Bi-Fold Double Tempered Glass Aluminium Waterproof Space-Saving Doors
Heavy-Duty Pivot
WANJIA Grand Modern Waterproof Swing Exterior Aluminium Pivot Front Entry Door
Engineering White Paper · Chapter 1
Structural Metallurgy & Security Engineering in Aluminium Grill Doors
In modern architectural fenestration, the specification of security barriers has transitioned from crude, utilitarian wrought-iron bars to precision-extruded aluminium grill door assemblies. For commercial developers, luxury villa builders, and institutional procurement teams, choosing a certified aluminium grill door supplier requires an acute technical evaluation of profile alloys, tensile yield strength, anodizing/powder-coating mil-thickness, and impact dissipation kinetics. When engineered properly, high-performance aluminium security grill doors protect structures against forced intrusion, high-velocity cyclone debris, and relentless saline corrosion while delivering uncompromised aesthetic value and natural daylighting.
Our engineering division at DERCHI (Guangdong Dejiyoupin Doors and Windows Co., Ltd.) establishes an exacting benchmark utilizing virgin architectural 6063-T5 and structural 6061-T6 aluminium billets. Unlike inferior recycled scrap extrusions that suffer from microscopic voids and uneven iron contamination, our prime extrusions feature minimum web thicknesses ranging from 2.0 mm to 3.5 mm across primary structural stiles and bottom rails. This robust substrate accommodates concealed multi-point mortise lock systems, reinforced stainless steel internal corner cleats, and marine-grade security mesh inserts without structural deflection under excessive torque or wind load conditions.
"The modern security grill door is no longer an afterthought bolted to an exterior jamb. It is a thermally calibrated, structurally integrated fenestration envelope component engineered to withstand knife-shear tests, dynamic impact forces exceeding 100 Joules, and cyclic wind pressures up to Australian AS 2047 N6 standards."
To eliminate galvanic corrosion—the fatal flaw in poorly manufactured grill doors where dissimilar metals interact—our assembly protocol incorporates high-density polyamide insulating gaskets and fluoropolymer-coated stainless steel mechanical fasteners. This barrier isolates the architectural aluminium frame from the high-tensile 304 or 316 marine-grade stainless steel wire mesh infill, guaranteeing that coastal resort installations in high-salinity zones (such as Cebu, Phuket, Da Nang, and Miami) retain structural integrity without pitting or galvanic oxidization for decades.
| Performance Parameter | Commercial Grade (Standard Supplier) | DERCHI Architectural Tier (AS 2047 / CE Certified) | Strategic Benefit for Specifiers |
|---|---|---|---|
| Aluminium Alloy & Temper | Secondary 6063-T4 Scrap Ingot | Prime 6063-T5 / Structural 6061-T6 Extrusion | Superior tensile strength (>215 MPa) & crack resistance |
| Profile Wall Thickness | 1.2 mm – 1.4 mm | 2.0 mm – 3.0 mm Reinforced Heavy-Gauge | Zero sash sag over wide spans; anti-jemmy forced entry resistance |
| Grill / Mesh Infill Spec | Expanded Aluminum / 201 Stainless Mesh | 0.8 mm – 1.0 mm High-Tensile 316 Marine Stainless Mesh | Passes AS 5039 Knife Shear, Dynamic Impact, and Jemmy Tests |
| Surface Treatment Integrity | Standard Powder Coat (<45 μm) | AkzoNobel / PPG PVDF / Qualicoat Class 2 (70–90 μm) | Resists 3,000+ hours neutral salt spray testing without blistering |
| Locking Mechanism | Single-point deadbolt latch | German-Engineered 3-to-5 Point Hook & Shoot-Bolt System | Interlocking security pins distribute lateral impact across full frame |
| Thermal & Acoustic Barrier | Non-thermally broken hollow frame | Polyamide PA66 GF25 Thermal Break with EPDM Gaskets | Substantially lowers U-values (≤1.8 W/m²K) and acoustic STC ratings >36 dB |
Structural Multi-Chamber Profiles
Extruded with internal reinforcing ribs and dedicated hardware screw spline chambers, preventing strip-out under cyclic operational fatigue and resisting heavy crowbar prying.
Tensile Security Mesh Integration
Features mechanical wedge-lock clamping retaining systems that mechanically lock 0.9 mm 316 stainless woven mesh into the perimeter frame without exposed screws or rivets.
AS 2047 N6 Wind Load Testing
Independently verified to withstand tropical typhoon wind pressures, ultimate limit state loads up to 4500 Pa, and extreme water ingress prevention during monsoons.
Enterprise Manufacturing Authority
Guangdong Dejiyoupin (DERCHI): 25+ Years of Fenestration Leadership
Headquartered in Foshan, Guangdong—the world epicenter of architectural aluminium engineering—DERCHI delivers turnkey door and window solutions for commercial developers, general contractors, and luxury estates worldwide.
Full Architectural CAD & BIM
Our in-house technical engineering department provides custom shop drawings, wind-load structural calculations, and 3D BIM integration matching strict door schedule specs.
International Compliance
Certified to Australian AS 2047, European CE, ISO 9001 Quality Management, and UL Fire Resistance, ensuring immediate code approval by municipal building inspectors.
Global Consolidation
Consolidate your aluminium grill doors, luxury pivot doors, interior timber doors, and motorized garage portals into unified, floor-by-floor containerized export shipping.
WORLDBEX & Global Acclaim
Demonstrated market presence with acclaimed exhibitions at the Philippines WORLDBEX 2025, serving prestigious developers throughout Southeast Asia, Australia, and the Americas.
Strategic Sourcing Intelligence · 2025–2030 Outlook
Future Procurement Trends for Aluminium Grill Doors & Security Entrances
The global architectural fenestration sector is experiencing a paradigm shift driven by stringent decarbonization directives, escalating climate-induced extreme weather occurrences, and the rapid convergence of smart IoT access ecosystems. Procurement managers, quantity surveyors, and architectural consultants are no longer assessing suppliers based solely on initial FOB ex-factory pricing. Instead, life-cycle carbon accounting, holistic maintenance cycles, and integrated multi-point digital hardware readiness now dominate corporate RFP requirements.
A prominent procurement trajectory is the mandate for low-carbon, circular aluminium. Modern green building frameworks—including LEED v4.1, BREEAM, and Green Star—increasingly enforce strict Embodied Carbon caps on building envelopes. As a result, Tier-1 suppliers must provide verified Environmental Product Declarations (EPDs) demonstrating the use of hydro-powered smelted aluminium billets or high-ratio post-consumer closed-loop recycled billets. By sourcing aluminium extruded with renewable hydro energy, project specifiers can achieve an embodied carbon reduction of up to 65% compared to coal-fired alternatives without sacrificing metallurgical tensile purity.
Total Cost of Ownership (TCO) Prioritization
Commercial developers are shifting evaluation models from unit procurement costs to 25-year TCO. Marine-grade aluminium grill doors eliminate timber repainting, swelling rot, and structural steel rust remediation cycles in humid and coastal geographies.
Smart IoT & Biometric Locking Integration
Factory-routed internal stiles pre-machined for motorized multipoint locks, facial recognition sensors, and remote building access protocols now replace post-installation site drilling that routinely voids manufacturer corrosion warranties.
Supply Chain Consolidation & Prefabrication
Tier-1 contractors demand pre-hung, factory-tested assemblies where frames, hinges, precision grills, and weatherstrips arrive fully calibrated on steel A-frames, cutting on-site installation labor and cycle times by up to 40%.
Innovation Trajectory
Technological & Design Evolution: From Bulky Bars to Minimalist High-Tensile Fenestration
Historically, building occupants were forced to compromise between security and aesthetic transparency. Traditional mild steel burglar grilles cast heavy shadows, suffered from weld-joint oxidation, and obstructed views. The ongoing technological evolution in aluminium grill doors is defined by three fundamental innovations:
1. Ultra-Slim Sightline Engineering with High-Modulus Alloys: Advancements in metallurgical alloying enable profile engineers to optimize extrusion cross-sections. By utilizing micro-alloyed 6063-T6 with precise silicon and magnesium control, modern profiles achieve moment of inertia ratings comparable to traditional bulky profiles while shaving visible frame widths down to 45 mm. This slimline aesthetic satisfies contemporary minimalist architectural trends without compromising forced-entry resistance.
2. Thermally Broken Security Envelopes: High-performance security doors now integrate 24 mm to 34 mm glass fiber reinforced polyamide (PA66 GF25) thermal insulating strips. This engineering breakthrough allows an exterior aluminium security grill to seamlessly interface with an insulated interior double-glazed insulated glass unit (IGU). During blistering summer conditions or harsh winters, this prevents thermal bridging, eliminates interior condensation puddles, and dramatically lowers the building's overall HVAC operational costs.
3. Advanced Nanotechnology & Fluoropolymer Coatings: Surface science has eliminated chalking and fading. DERCHI's proprietary pre-treatment involves multi-stage acid etching and chromate-free zirconium passivation, followed by electrostatically applied Qualicoat Class 2 architectural powders or PPG fluoropolymer PVDF coatings. These surface treatments withstand solar ultraviolet degradation, environmental airborne industrial sulfur, and intense coastal salt spray (ASTM B117 standards) exceeding 3,000 continuous hours.
Procurement & Engineering Due Diligence
Frequently Asked Questions by Commercial Specifiers & Importers
Direct technical clarifications addressing engineering tolerances, international certifications, hurricane wind loads, and cross-border project logistics.
How do aluminium grill doors compare to traditional wrought iron and stainless steel security gates?
Aluminium grill doors engineered from 6063-T5 or 6061-T6 alloys provide exceptional strength-to-weight ratios compared to heavy wrought iron, which eliminates hinge binding, jamb sagging, and operational failure over time. Furthermore, wrought iron inevitably rusts at weld points and requires periodic grinding and repainting. Unlike raw stainless steel, aluminium allows for architectural powder coatings, wood-grain heat transfers, and anodized finishes that perfectly harmonize with existing building facade systems while maintaining total resistance against atmospheric corrosion.
What specific testing standards confirm the anti-burglary and forced-entry performance of your doors?
Our security grill door assemblies are tested in accordance with rigorous global standards, including Australian AS 5039 / AS 5041 (Security Screen Doors) and AS 2047 (Windows and External Glazed Doors in Buildings). Testing protocols include the Dynamic Impact Test (simulating kicking and heavy projectile impacts up to 100 Joules), the Jemmy Test (leveraged prying attempts at locking points and hinges), the Pull Test, and the Probe Test. Internal reinforcement ribs and German multi-point locking systems guarantee perimeter security against forced entry tools.
Are DERCHI aluminium grill doors suitable for hurricane-prone and coastal tropical regions?
Yes. Our systems are engineered and tested to AS 2047 N6—the highest cyclonic rating—covering severe structural deflection, air permeability, and cyclic water penetration resistance. For coastal environments subject to aggressive airborne chlorides (e.g., beachfront villas in the Caribbean, Florida, or Southeast Asia), we specify Qualicoat Class 2 super-durable powders or 25-micron architectural anodized treatments paired exclusively with marine-grade 316 stainless steel wire mesh infills to guarantee zero corrosion.
Can you accommodate custom oversized dimensions, pivot configurations, and curved grill patterns?
Absolutely. Over 80% of DERCHI's manufacturing output is custom-tailored to architectural plans. We produce grand pivot entrance doors up to 4,000 mm in height and 2,500 mm in width, equipped with internal heavy-duty hydraulic pivot floor springs rated for up to 500 kg sash weight. Our CNC profile milling and laser-cutting technology allows for bespoke geometric grill designs, custom architectural fretwork, and laser-carved cast aluminium inserts tailored to your project's architectural theme.
What is the standard factory lead time and project packaging protocol for overseas shipments?
Standard production lead time ranges from 25 to 35 calendar days following client approval of CAD shop drawings. For international logistics, each door sash and subframe is wrapped in 0.2 mm protective polyolefin film, protected with high-density EPE foam corner protectors, vacuum-sealed, and secured inside fully crated fumigated plywood containers with moisture desiccant packs. Crates are labeled with specific floor and opening numbers to facilitate rapid sorting on job sites.
How does DERCHI support remote installation, on-site calibration, and after-sales maintenance?
Every shipment is accompanied by comprehensive 3D isometric installation manuals, step-by-step video tutorials, and technical datasheets. Our English-speaking fenestration engineers in Foshan operate on your local time zone to provide real-time video guidance, perimeter shim calculations, and hardware calibration assistance. Additionally, we provide a complimentary backup kit containing extra hardware components, fasteners, weatherstrips, and touch-up coatings with every container.
Direct Factory Engineering Support
Request a Precision Technical Proposal & Factory Direct Quotation
Planning an upcoming residential estate, commercial resort, or high-security residential development? Send us your opening schedules, architectural elevation drawings, or bill of quantities. Our senior fenestration engineers will provide certified CAD shop drawings, wind load calculations, and comprehensive FOB/CIF pricing within 24 hours.