Factory-Direct Catalog
Featured Architectural Systems & Engineered Enclosures
Precision-manufactured across our 180,000 m² Foshan facility. Standardized and bespoke OEM/ODM fenestration calibrated to rigorous global mechanical, acoustic, and hurricane-rated compliance metrics.
Technical White Paper
Aluminium-Wood Composite Architecture: The Structural Interface
Examining how high-tensile 6063-T6 extruded aluminum exteriors and sustainably harvested interior architectural hardwoods fuse to mitigate differential thermal coefficients and eliminate condensation.
Mechanically Decoupled Thermal Core
Unlike conventional bonded doors where disparate materials shear under solar loading, our CNC lines integrate floating composite nylon clips (PA66 GF25). This architecture allows internal architectural hardwoods (such as white oak, Burmese teak, or black walnut) to expand naturally while the external structural extruded aluminum alloy isolates exterior heat and wind moisture.
Isothermal Condensation Barrier
By engineering interior timber moisture equilibrium within 8%–12% alongside continuous multi-chamber vulcanized EPDM gaskets, our systems eliminate cold bridge thermal bypassing. This ensures dew point containment even when regional temperature deltas exceed 45°C across exterior and interior envelopes.
Structural RC3/PAS 24 Resistance
Our OEM aluminum-clad pivot and casement systems integrate concealed multipoint locking assemblies coupled with internal 304/316 stainless-steel perimeter tie-rods. These resist dynamic impact forces, prying attacks, and cyclic wind pressures up to Australian AS 2047 N6 and European EN 1627 RC3 thresholds.
Validation Matrix
Verified Performance Thresholds for Global Projects
Laboratory-certified metrics comparing DERCHI industrial configurations against major international commercial standards.
| Performance Vector | International Test Standard | DERCHI Engineered Level | Architectural Impact |
|---|---|---|---|
| Thermal Transmittance (Ud) | EN ISO 10077-1 / NFRC 100 | 0.85 – 1.2 W/(m²·K) Passive Certified | Qualifies for UK Part L, German GEG, and North American Energy Star Title 24 envelope mandates. |
| Air Permeability | EN 12207 / ASTM E283 | Class 4 (600 Pa) / <0.1 cfm/ft² | Continuous seal topology eliminates pressurized draft bypass in high-rise and alpine installations. |
| Water Tightness | EN 12208 / ASTM E331 | Class 9A (900 Pa static) | Patented stepped drain cavities prevent hydrostatic water penetration under extreme storm exposure. |
| Structural Wind Load | AS 2047 (N6) / ASTM E330 | Up to ±4500 Pa (Design Pressure) | Oversized monumental pivot leaves remain structurally plumb without deflection or sash racking. |
| Acoustic Attenuation | ISO 717-1 / ASTM E90 | Rw 38 dB – 44 dB | Decoupled dense timber cores damp mid-to-high frequency urban acoustic resonance. |
Strategic Procurement Outlook
Future Sourcing & Engineering Dynamics (2025–2030)
Key technological, regulatory, and logistics shifts shaping global procurement decisions for commercial developers, architectural contractors, and distributor networks.
1. Monumental Pivot Leaf Geometries
Global demand is accelerating toward floor-to-ceiling entrances exceeding 4.5 meters in height and 2.0 meters in width. Traditional hinges are yielding to concealed dual-action German oil-dampened bottom pivots capable of carrying static weights upwards of 800 kg. Sourcing requires manufacturers with robotic multi-axis CNC milling to eliminate micro-tolerances.
2. Low-Carbon Aluminum & FSC Timber
European CBAM (Carbon Border Adjustment Mechanism) and US LEED v4.1 certifications increasingly demand Environmental Product Declarations (EPDs). Sourcing is pivoting toward secondary smelted hydropower aluminum (<4.0 kg CO₂/kg Al) bonded with sustainably certified, kiln-dried FSC European Oak and North American Walnut.
3. Smart Enclosure Automation
Next-generation access control is shifting beyond add-on digital deadbolts. Enterprise projects require fully integrated motorized multipoint locking systems concealed within the extrusion chamber, native to biometric recognition, BACnet building protocols, and discrete wireless transponders.
Manufacturing Authority
Guangdong Dejiyoupin (DERCHI) Corporate Strengths
Top-tier industrial manufacturing infrastructure dedicated to mitigating procurement risk for project developers and volume distributors.
180,000 m² Facility
A smart manufacturing base situated in Foshan, China's core aluminum production center, operating automated German extrusion cutting, milling, and assembly cells.
CET/GMT Project Delivery
Dedicated bilingual engineering teams provide synchronized CAD/BIM shop drawings, schedule validation, and technical responses directly aligned with European and North American hours.
Validated Partner Reliability
Chosen by a premier UK Schüco installation partner for an extensive luxury villa compound, reflecting engineering rigor that passes rigorous scrutiny.
Global Certifications
Fully compliant with CE (EN 14351-1), ISO 9001, AS 2047, and UL fire-rated standards. Full laboratory documentation provided for every custom manufacturing run.
Technical FAQ
Critical Engineering & Sourcing Inquiries
Essential guidance addressing technical specifications, logistics protection, and architectural customisation protocols.
How do DERCHI composite doors counteract wood warping under divergent climate conditions?
Our manufacturing lines employ multi-layer quarter-sawn laminated wood profiles dried through computerized kilns to maintain an 8%–10% equilibrium moisture content. The structural wood layer is mounted to the load-bearing aluminum framework using patented spring-tensioned composite nylon clips rather than rigid adhesion. This mechanical decoupling eliminates internal shear stress during seasonal humidity changes.
What lead times and testing verifications apply to custom OEM shop drawings?
Upon receipt of architectural door schedules or initial sketches, our engineering department delivers complete CAD and 3D shop drawings within 48 to 72 hours. These outline thermal break placements, structural glass weight calculations, and wall connection details. Following drawing sign-off, production lead times average 25 to 35 calendar days depending on finish choice (PVDF, AkzoNobel powder coating, or anodizing).
What international testing standards do your exterior systems conform to?
DERCHI products hold full CE compliance under EN 14351-1, along with ISO 9001 operational quality management certification. In extreme climate testing, our systems achieved Australia's highest AS 2047 N6 rating for wind and water infiltration resistance, as well as NFRC thermal performance compliance for the North American market, including U-values down to 1.7 W/(m²·K).
What packing standards prevent maritime corrosion and transit deformation?
All doors undergo a five-tier export packaging sequence: (1) low-tack protective PE film applied to profiles, (2) shock-absorbing foam corner blocks, (3) heavy-duty bubble wrap enclosing individual leaves, (4) vacuum-sealed moisture-desiccant liners, and (5) fully enclosed, fumigated non-coniferous plywood crates reinforced with galvanized steel bands to prevent shifting during ocean freight.
Can DERCHI integrate architectural hardware systems like GU, Roto, or Dormakaba?
Yes. Our CNC lines feature customized milling paths for major European architectural hardware platforms, including GU automatic locking gears, Roto hardware sets, Siegenia fittings, Dormakaba access drives, and FritsJurgens concealed pivot systems. We can factory-install customer-supplied hardware or source authentic European components via our supply chain agreements.
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Send over your CAD schedules, U-value criteria, or tender specifications for immediate analysis, fabrication schedules, and direct factory pricing.
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