Export Product Portfolios
Featured Architectural Casement, Pivot & Bifold Systems
Engineered in Foshan, Guangdong by DERCHI (Guangdong Dejiyoupin Doors and Windows Co., Ltd.). Compliant with strict AS 2047, NFRC, CE, and ISO structural and thermal integrity codes.
Direct Manufacturing Authority
Factory Competence & Engineering Capacity
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates one of Southern China's largest intelligent fenestration production hubs in Foshan. With complete vertical integration from multi-billet thermal extrusion to computerized robotic multi-axis CNC fabrication, we eliminate supply chain friction for global real estate developments.
180,000m²
Intelligent Production Facility
25+ Yrs
Manufacturing & Export Precision
600+ Staff
Engineers & Craft Technicians
100+ Patents
Certifications (CE, AS2047, NFRC)
AS 2047 & N6 Wind Rating Authority
Engineered to withstand rigorous coastal cyclic pressures up to 4500 Pa. Our aluminium casement door systems integrate polyamide PA66 thermal barriers, EPDM co-extruded triple-sealing gaskets, and pressure-equalized drainage chambers certified by NATA-accredited testing institutes.
Full-Cycle Bespoke Engineering
From CAD shop drawings and structural wind load calculations to custom CNC extrusion routing, our bilingual engineering teams consult directly with project architects, ensuring zero misalignment between structural opening schedules and pre-hung door frames.
Heavy-Duty Ocean Export Crating
Every casement door leaf and sub-frame is sealed in 0.08mm protective film, enclosed with shock-absorbent composite corner guards, and crated in fumigation-free solid timber boxes compliant with strict Australian and North American biosecurity import protocols.
Direct Foshan Manufacturing
Global Benchmark Quality, Direct Factory Economics
Why do commercial developers and luxury villa builders switch from European contract fabricators to DERCHI? We supply identical architectural alloys (6063-T5 / 6063-T6), high-grade multi-point hardware (Siegenia, Roto, Hoppe), and robotic CNC processing at substantial cost efficiency. Complete architectural traceability from raw aluminium billet casting to structural performance certification.
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Technical Specification Guide
Architectural Casement Door Engineering Matrix
A comprehensive technical comparison for commercial project specifiers, general contractors, and facade consultants looking to achieve optimal U-values, structural deflection standards, and acoustic attenuation.
| Casement Door Configuration | Alloy & Wall Thickness | Thermal Barrier / U-Factor | Acoustic Rating (Rw) | Air & Water Infiltration | Primary Commercial Use |
|---|---|---|---|---|---|
| Ultra-Slim Thermal Casement | 6063-T6 (2.0mm - 2.5mm) | PA66 GF25 / Uf ≤ 1.6 W/m²K | Rw ≥ 38 dB (Double Glazed) | A4 (EN 12207) / 700 Pa | High-End Residential & Penthouses |
| Hurricane Storm-Rated Door | 6061-T6 High Impact (3.0mm) | Multi-Chamber / Uf ≤ 1.8 W/m²K | Rw ≥ 42 dB (Laminated IGU) | N6 Wind Rating / 1000 Pa | Coastal Frontages & Tropical Resorts |
| Architectural Double Entry Grand | Cast Aluminium + Structural Extrusion | Polyurethane Core / Uf ≤ 1.4 W/m²K | Rw ≥ 44 dB | E1200 Water Resistance | Luxury Villa Portals & Civic Entrances |
| Commercial Heavy-Duty Casement | 6063-T5 (2.5mm - 3.2mm) | Iso-Strut Composite / Uf ≤ 1.9 W/m²K | Rw ≥ 36 dB | Exceeds ASTM E283/E331 | Boutique Hotels, Corporate Headquarters |
Specifier Recommendation: Selecting the Right Casement Door System
1. Coastal Salt-Spray Environments: When sourcing for maritime zones (within 1km of open sea), specify minimum 25-micron fluorocarbon PVDF coating (AAMA 2605 compliant) or marine-grade sand-blasted anodizing. Pair exclusively with 316-grade marine stainless steel locking mechanisms and concealed continuous hinges to prevent galvanic corrosion.
2. High-Altitude and Cold Climate Envelope Design: For regions demanding strict passive house metrics, utilize multi-cavity thermal break profiles paired with warm-edge spacer triple glazing (4Low-E + 12Ar + 4Clear + 12Ar + 4Low-E). DERCHI's proprietary polyamide thermal struts mitigate condensation risks while keeping internal frame temperatures within 1.5°C of room ambient temperature.
Industry Foresight
Future Procurement & Engineering Trends (2025–2030)
As global energy codes tighten and smart architecture converges with sustainable building certifications (LEED, Green Star, BREEAM), fenestration procurement is undergoing a paradigm shift.
Low-Carbon Recycled "Green Aluminium"
Global developers are mandating Environmental Product Declarations (EPDs). The industry is rapidly shifting toward low-carbon billet aluminium smelted using hydroelectric or solar energy, lowering embodied carbon metrics from 18kg CO2/kg to under 4.0kg CO2/kg.
Smart Facade & Access Convergence
Traditional locksets are being superseded by fully concealed electro-mechanical motorized multi-point latches integrated into home automation protocols (KNX, Zigbee, Crestron). 3D facial recognition and biometric sensors are engineered directly into the thermal stile.
Ultra-Narrow Sightlines with Structural Glass
Advancements in structural silicone bonding allow door sash profiles to shrink below 35mm visual sightline while maintaining wind-load capacity for oversized doors exceeding 3.5 meters in height, responding directly to minimalist architectural demands.
Procurement Clarity
Frequently Asked Questions for Global Importers & Contractors
Everything you need to know about factory-direct procurement from China, structural compliance, surface finish warranties, and logistics protection.
How does your factory ensure compliance with Australian AS 2047 and North American NFRC standards?
Every system is engineered from the profile extrusion stage to meet international deflection, ultimate strength, and water penetration benchmarks. We carry verified AS 2047 test certificates (yielding N6 cyclone ratings under 4500 Pa pressures) and NFRC thermal simulation records. Official NATA and ISO accredited lab reports are supplied alongside every project batch for municipal certifier approval.
What is the standard production lead time for customized architectural door schedules?
Standard custom extrusion and fabrication lead times are 25 to 35 business days from full CAD shop drawing approval and color master sign-off. For complex anodized finishes, fluorocarbon PVDF coatings, or curved architectural casements, lead times range between 35 and 45 days. Rapid prototyping slots can be reserved for mock-up validation testing.
How are oversized aluminium casement and grand entry doors packaged for container maritime shipping?
Our packaging protocol follows strict multi-barrier defense: profiles receive surface protective PE wrap, joints are shielded with 5mm shock-absorbing high-density EVA corners, the entire unit is enclosed in heavy-duty shrink film with desiccant packs, and it is housed inside fully enclosed, fumigated, steel-strapped plywood crates suitable for forklift discharge.
Can DERCHI match bespoke architectural finishes, RAL codes, and woodgrain sublimation?
Yes. We operate fully automated vertical and horizontal powder coating lines utilizing AkzoNobel, PPG, and Tiger Drylac powders with precise RAL matching. For coastal regions, we provide 25-30 year fluorocarbon PVDF coatings, electrolytic sandblasting anodizing (up to 25μm), and Italian 3D heat-transfer realistic architectural woodgrain finishes.
What pre-shipment quality control (QC) documentation is provided to overseas contractors?
Prior to packing, our dedicated QA engineering department conducts a 100% pre-assembly trial. We supply a comprehensive Project Dossier containing: coating thickness gauge verification, diagonal tolerance inspection logs (±1.0mm tolerance), air tightness tests, hardware operating force measurements, high-definition 4K video walk-arounds, and signed factory acceptance inspection certificates.
Direct Factory Collaboration
Accelerate Your Project with Foshan's Premier Door Manufacturer
Send us your window & door schedules, architectural CAD plans, or tender specifications. Our technical engineering division will generate comprehensive shop drawings, structural wind load evaluations, and competitive factory-direct commercial bids within 24 hours.
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