Custom OEM Aluminium Back Door Collections
Direct from Foshan's manufacturing facility: high-specification aluminum rear entrance doors, multi-track sliding patio back doors, motorized thermal-break systems, and high-security glazed back doors engineered to international standards (CE, AS 2047, ISO 9001).
Luvindow Aluminum Doors for House Security Front Entrance Door With Smart Lock
New YIJIA Back-up Type Electric Heating Aluminum Alloy Glass Door Eco-Friendly Easy Installation
Sectional Aluminum Garage Door Steel Backed Insulated Anti-Theft for Outdoor Warehouse Use
Modern High-quality Double Glazed Aluminum Sliding Patio Exterior Glass Back Door System
Aluminum Back Door with Dog Hole Openable Panel 316 Stainless Steel Hinged Support Swing Door
Newest Design Sliding Back Doors 5 Tracks Aluminium Double Tempered Glass Sliding Door
Door Aluminium Door for Preventing Water Backflow Folding Foldable Tempered Glass Windproof
USA Hot Sale Modern Aluminum Front Sliding Back Doors for House Thermal Break Multi Panel
Engineered Precision: 180,000㎡ Mega Production Infrastructure
As premier custom OEM aluminium back doors manufacturers and suppliers based in Nanhai District, Foshan, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) sets the international standard for high-performance architectural door assemblies. Spanning an expansive 180,000㎡ modernized industrial park, our plant integrates automated aluminum profile extrusion, high-precision 5-axis CNC machining centers, electrostatic powder coating lines, and rigorous barrier assembly lines.
For more than 25 years, our technical division has serviced B2B commercial contractors, window and door brand holders, architectural distributors, and high-end residential builders across the globe. Unlike common assembly workshops, DERCHI maintains absolute quality stewardship over every lifecycle stage—from metallurgical alloy analysis (6063-T5, 6063-T6, 6061-T6) and thermal break insertion to automated silicone sealant application and stress-load deflection testing.
- Free Architectural CAD & BIM Shop Drawings
- CE, AS 2047, ISO 9001, UL Certified
- GMT+8 Dedicated Project Engineering Team
- N6 Wind-Load Pressure Resistance Testing
- Multi-chamber Fluorocarbon (PVDF) Finishes
- Seaworthy Steel Crate Cushion Packaging
Engineering Anatomy of Commercial & Residential Back Doors
In modern fenestration architecture, the rear entrance is no longer a secondary service portal. It represents a vital barrier against severe weather infiltration, forced intrusion, thermal bridges, and sound transmission. Here is how DERCHI re-engineers OEM back door assemblies.
Polyamide PA66 GF25 Thermal Barriers
Uninsulated aluminum door profiles generate substantial thermal conductance, causing interior condensation and high HVAC energy consumption. Our OEM thermal break doors utilize precision-crimped 24mm to 34mm PA66 GF25 nylon strips reinforced with 25% fiberglass, achieving U-values as low as 1.4 W/m²·K (0.25 BTU/hr·ft²·°F) without sacrificing structural load capability.
AS 2047 N6 Wind & Water Tightness
Back doors facing open coastal environments or high-precipitation monsoons must withstand severe pressure gradients. Tested according to AS 2047 standard criteria, our multi-tier drainage chambers, step-down water barrier thresholds, and continuous vulcanized EPDM gaskets easily surpass 450 Pa water penetration resistance and 3000 Pa structural wind pressure.
Reinforced Multipoint Anti-Intrusion Hardware
Security vulnerabilities in residential properties predominantly concentrate on backyards, patios, and terrace access ways. We integrate German Siegenia, Hoppe, or proprietary concealed 5-point locking mechanisms coupled with anti-lift pins, 316 stainless steel security interlocks, and toughened laminated hurricane-resistant glass configurations.
Architectural Back Door Specification Matrix: Material & Configuration Comparison
Data benchmarks for B2B wholesale buyers, curtain-wall contractors, and procurement departments.
| System Type | Alloy Profile Spec | Thermal Performance (U-Value) | Acoustic Attenuation | Intrusion Resistance Rating | Ideal Project Deployment |
|---|---|---|---|---|---|
| Thermal Break Glazed Back Door | 6063-T6 / 2.0mm - 2.5mm Wall Thickness | 1.4 - 1.8 W/m²·K | Rw = 36 - 42 dB | EN 1627 RC2 / PAS 24 | High-efficiency villas, European & North American homes |
| Multi-Track Heavy Duty Sliding Door | 6063-T5 / 2.2mm - 3.0mm Profile | 1.9 - 2.4 W/m²·K | Rw = 32 - 38 dB | Multipoint hook latching / RC2 | Resort back patios, luxury balconies, tropical villas |
| Cast Aluminium Security Rear Door | High-tensile Al-Si Alloy Casting + Steel Core | 1.2 - 1.6 W/m²·K (Insulated) | Rw = 40+ dB | EN 1627 RC3 / RC4 fortress grade | Estate perimeter rear entrance, luxury villa rear exits |
| Bi-Fold Anti-Flooding Back Door | 6063-T6 with reinforced stainless track | 1.8 - 2.2 W/m²·K | Rw = 34 - 39 dB | Heavy shoot-bolt top & bottom | Flood-susceptible regions, garden pool exits, modern patios |
| Electric Heated Defrost Glass Door | Commercial 6063-T5 + Low-E Heated Film | 1.3 - 1.7 W/m²·K | Rw = 35 - 40 dB | Laminated tempered security lock | Cold-climate resort patios, commercial kitchens, walk-outs |
Product Sourcing & Procurement Trends (2025–2030)
Strategic supply chain dynamics are shifting rapidly. Sourcing directors and project specifiers are moving away from fragmented regional fabricators toward integrated smart factories capable of automated precision, carbon accountability, and custom modularization.
Shift to Low-Carbon Recycled Aluminum Billets
Strict ESG directives and European CBAM (Carbon Border Adjustment Mechanism) compliance require door manufacturers to track embedded carbon. Future procurement contracts prioritize suppliers utilizing renewable hydropower-smelted aluminum or scrap-recycled alloy billets exceeding 60% circularity without compromising metallurgical yield strength.
Demand for Pre-Glazed and Pre-Hung Modular Kits
Rising jobsite labor rates across the US, Australia, and Western Europe make on-site door glazing economically unviable. B2B importers increasingly demand factory-glazed, fully balanced pre-hung door cassettes equipped with factory-tested multi-point locks, zero-clearance threshold sub-sills, and snap-in exterior brick moulds.
Convergence of Smart Home IoT & Rear Door Security
The global luxury housing market no longer accepts traditional mechanical deadbolts for patio and back door portals. Sourcing forecasts demonstrate a 42% compound growth rate for back doors pre-machined with low-voltage wiring chases, hidden electronic strikes, motorized auto-locking solenoids, and Matter-compliant fingerprint/facial recognition modules.
Extreme Climate Resilience & Cyclone Certifications
Increasing storm frequencies have transformed wind-load specifications from an optional upgrade to a mandatory baseline. Importers for Florida (Miami-Dade NOA), the Gulf Cooperation Council (GCC), and Australia (AS 2047 Cyclone regions C and D) explicitly require verified test reports with cyclical pressure ratings exceeding 4500 Pa.
Ultra-Narrow Sightlines with Concealed Sub-Frames
Modern architectural minimalism dictates uninterrupted sightlines. Back doors are adopting panoramic structural engineering with concealed perimeter frames embedded into ceiling, floor, and side reveals. The procurement trend favors structural interlock widths under 22mm capable of supporting oversized glazed panels up to 350kg per sash.
Factory Direct End-to-End Engineering Partnership
General contractors and commercial distributors are bypassing trading intermediaries to collaborate directly with OEM factories capable of parametric 3D CAD modeling, structural finite element analysis (FEA), containerized knock-down (CKD) packing, and English-speaking engineering support in the GMT+8 time zone.
The Next-Generation Evolution in Custom Aluminium Back Door Systems
The architectural door market is experiencing an unprecedented technological convergence where structural metallurgy, aerospace-grade coatings, polymer sealing chemistry, and digital fabrication coalesce.
Advanced Surface Passivation & Fluorocarbon PVDF Technology
In coastal, high-salinity, and ultra-violet exposed regions, standard polyester powder coatings suffer from chalking, micro-cracking, and cathodic delamination within 5 years. DERCHI implements automated 3-coat, 2-bake AAMA 2605 compliant PVDF fluorocarbon electrostatic spraying systems containing 70% Kynar 500 resin. This chemical matrix guarantees 20+ years of color retention and salt-spray corrosion resistance up to 4000 hours.
Acoustic Lamination & Inert Warm-Edge Spacer Integration
Urban noise pollution requires back doors to offer acoustic attenuation equivalent to solid masonry walls. By utilizing asymmetric glass panes (e.g., 6mm Low-E outer pane + 16A Argon warm-edge spacer + 4mm + 0.76mm acoustic PVB + 4mm inner laminated pane), DERCHI doors deliver certified Sound Transmission Class (STC) ratings exceeding 42 dB, effectively insulating residences against urban airport and highway corridors.
Through our in-house tooling division, DERCHI creates custom extrusion profiles, tailored thermal break geometry, and specialized threshold sills (such as wheelchair-accessible barrier-free thresholds with magnetic seals) within a rapid 15-day prototype cycle, drastically reducing project commissioning latency.
Frequently Asked Questions for B2B Importers & Specifiers
Authoritative, clear answers to the most demanding technical, contractual, and logistics questions asked by developers, wholesale distributors, and architectural door buyers.
What aluminum alloy grades and wall thicknesses are used for high-durability OEM back doors? ▼
How does your factory ensure water-tightness and prevent backflow on patio and garden back doors? ▼
Can DERCHI supply complete CAD shop drawings, structural calculations, and thermal analysis for tender approval? ▼
What international testing standards and quality certifications do DERCHI doors hold? ▼
What are your minimum order quantities (MOQ), production lead times, and sample policies? ▼
How are overseas shipments packaged to prevent transit abrasion, salt fog corrosion, and glass breakage? ▼
Do you offer custom pet-door integrations, security screen mesh, and motorized blind options? ▼
How does DERCHI manage the GMT+8 communication cycle and overseas installation support? ▼
Accelerate Your Door Sourcing: Request Direct Factory Pricing & Technical Files
Partner directly with Foshan's premier architectural aluminum manufacturer. Download our comprehensive 200+ page product catalog, technical profile cross-sections, CAD blocks, and request a tailored quotation for your residential, commercial, or wholesale supply schedules.