Explore our precision-fabricated OEM/ODM collection. Each structural profile pairs structural resilience, certified thermal mitigation, and architect-specified design integrity for global distribution.
DERCHI, backed by Guangdong Dejiyoupin Doors and Windows Co., Ltd., stands as an international powerhouse recognized among the elite Top 10 fenestration systems manufacturers in China. Our integrated fabrication campus combines advanced German tooling, robotic CNC extrusion processing, automated powder-coating lines, and thermal break crimping cells.
For cross-border commercial distributors, real estate consortiums, general contractors, and facade consultants, our OEM/ODM partnership eliminates intermediary margins while enforcing uncompromising dimensional fidelity. Every aluminum-clad exterior door system is manufactured to exact shop-drawing tolerances, validated under cyclical pressure regimes, and delivered sea-worthy to destination ports worldwide.
Evaluating the structural mechanics, thermodynamic breaks, and metallurgy that elevate composite exterior doors beyond standard wood or monolithic aluminum systems.
Exterior-facing profiles feature high-tensile 6063-T6 architectural grade aluminum, offering superior yield strength and resistance to cyclic wind-load flexing compared to cast-stock or secondary alloys.
Eliminating conductive heat transfer, our aluminum clad exterior assemblies feature multi-chamber PA66-GF25 (polyamide reinforced with 25% glass fiber) continuous thermal barrier strips.
Engineered for hostile microclimates and severe forced-entry mitigation. Precision perimeter grooves house vulcanized EPDM or silicone-cell gaskets with concealed robotic multi-point locksets.
| Performance Standard | Testing Protocol | DERCHI Engineered Clad Value | Standard Market Aluminum Door |
|---|---|---|---|
| Thermal Transmittance (U-Value) | ISO 10077-1 / NFRC 100 | 0.80 - 1.25 W/m²·K (Passive Capable) | 2.80 - 3.40 W/m²·K |
| Structural Wind Load Deflection | AS2047 / ASTM E330 | Serviceability up to 4500 Pa (N6 Cyclonic) | 1200 - 1500 Pa (Standard Light) |
| Acoustic Attenuation (Rw / STC) | ASTM E90 / ISO 717-1 | STC 42 - 47 dB (Triple Glazed Acoustic) | STC 28 - 32 dB |
| Air Infiltration Rate | ASTM E283 / EN 12207 | Class 4 (< 0.1 m³/h·m²) | Class 2 (> 0.5 m³/h·m²) |
| Water Tightness Under Dynamic Head | ASTM E331 / EN 12208 | 1050 Pa (Hurricane Threshold Rated) | 300 - 450 Pa |
Anticipate market transitions, environmental legislation, and architectural shifts redefining exterior fenestration procurement through 2026–2030.
Global procurement teams across Europe, North America, and high-growth markets are requiring Environmental Product Declarations (EPDs). Specifiers favor suppliers utilizing hydro-powered green primary aluminum and FSC-certified interior timber substrates. DERCHI integrates closed-loop scrap recycling to ensure export compliance with carbon border adjustment mechanisms (CBAM).
The standard manual lock is being outmoded in luxury residential and institutional exterior doors. Procurement is shifting towards concealed motorized multi-point systems seamlessly interfaced with home automation protocols (Zigbee, Matter, Crestron). Demand for recessed motorized pivot doors and keyless biometrics requires OEM exporters to provide integrated low-voltage pathways.
With volatile climate occurrences becoming standard, exterior doors require dual performance certification. Coastal projects demand saline-tested fluorocarbon coatings capable of resisting harsh coastal wind-driven sand, while inland projects require extreme thermal breaks to withstand extreme temperature deltas without profile warp or thermal bowing.
Clear, direct operational and technical details for international developers, building material wholesalers, and project specifiers.
Aluminum clad systems provide the ultimate hybrid performance: exterior architectural aluminum creates a maintenance-free shield impervious to UV radiation, rot, termites, and severe rain driving, while internal substructures (solid timber, insulated composites, or thermal break cores) deliver exceptional acoustic isolation, warm interior aesthetics, and zero interior condensation.
Aluminum and core substrates expand and contract at different thermal expansion coefficients. DERCHI applies proprietary sliding nylon clip connectors and calibrated expansion gaps between the exterior aluminum cladding and the interior core. This mechanical decoupling guarantees doors will not warp, bind, or de-laminate under extreme direct solar radiation.
Yes. As an OEM/ODM direct manufacturer, our facility processes oversized systems up to 6000mm in panel height and 3000mm in panel width. We incorporate German hydraulic floor springs, structural steel reinforcing sub-skeletons, and heavy-duty pivot bearings tested to carry door weights exceeding 800 kg per panel leaf.
Every exterior door leaf and structural outer frame undergoes five-layer protective packing: protective peel-off film on all aluminum surfaces, corner EVA foam crash pads, shrink-wrap waterproof wrapping, corrugated impact padding, and full fumigation-free solid plywood export crating. Container loading plans are engineered with steel strapping to prevent movement in transit.
Our complete architectural fenestration range has documented test records verified by notified bodies. We supply accredited wind pressure, water tightness, air infiltration, acoustic attenuation, and thermal performance reports. Furthermore, our engineering division prepares compliance documentation for pre-shipment inspections like SONCAP, KEBS, or SASO.
Upon final sign-off of shop CAD engineering drawings and receipt of deposit, standard OEM custom production timelines range from 25 to 35 business days. For specialized requirements—such as custom PVDF extrusion color matches or certified fire-rated acoustic assemblies—lead time is structured to support commercial project construction schedules.
Submit your architectural drawings, schedule of door openings, or OEM volume distribution requirements. Our English-speaking fenestration engineers deliver comprehensive CAD shop drawings, thermodynamic specifications, and competitive FOB/CIF quotation breakdowns within 24 hours.