Engineered to exceed EN 14351-1, AS 2047, and UL fire test protocols. Review our flagship factory-fabricated systems built with architectural-grade 6063-T5 aluminum alloys, structural polyamide thermal isolators, and multi-point security hardware.
Oversized luxury entrance system equipped with insulated multi-chamber thermal core, embedded intumescent fire seals, and double low-E laminated vision glass.
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Continuous polyurethane foam core encapsulated by 2.0mm aluminum alloy structural skins. Designed for wind load Class 4 resistance and quiet motorized cycling.
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Certified for high-velocity hurricane zones (HVHZ). Heavy-duty stainless bottom rollers handle up to 350kg per sash with continuous dual EPDM compression seals.
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Maximized glass-to-frame ratio with narrow stile profiles, flush sill engineering for DDA compliant transitions, and multi-point perimeter compression locking.
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High-precision aluminum extrusion profiles for architectural window and door manufacturing. Available in mill finish, Qualicoat powder coating, or anodized finishes.
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Classic French aesthetics combined with CNC-machined aluminum profiles and integrated smart biometric biometric/IoT mortise locks for premium villas.
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Factory-direct customized aluminum extrusion systems engineered for minimalist interior partitions, pivot panels, and acoustic commercial office entrances.
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Equipped with 24mm to 34mm PA66GF25 reinforced polyamide thermal insulating bars, multi-point locking gear, and heavy load carrying capacity for structural balcony openings.
View Specifications →Operating as a globally recognized top-tier manufacturer with 25+ years of specialized fenestration engineering, we supply custom-engineered aluminum door systems directly to general contractors, architects, real estate developers, and building material distributors worldwide.
At our Shishan Town manufacturing hub in Foshan, Guangdong, DERCHI integrates the entire aluminum fabrication lifecycle: from in-house billet casting and precision extrusion to computerized thermal bar crimping, CNC 5-axis robotic milling, surface electro-coating, and automated dual-sealed glazing assembly.
Unlike trading entities, we execute complete shop drawings within 48 hours, generate verified structural deflection calculations (L/175 and L/250 criteria), and ensure every batch complies with mandatory regional building codes including CE EN 14351-1 (Europe), AS 2047 N6 (Australia/Oceania), and UL 10C / NFRC standards (North America).
Our turnkey capabilities cover entrance pivot doors, hurricane bi-folds, slim sliding systems, cast aluminum estate entries, and stainless steel fire barrier assemblies, all shipped with comprehensive factory QA certificates and installation manuals.
A technical breakdown of our aluminum extrusion metallurgy, thermal barrier integration, and high-load mechanical hardware standards engineered for coastal, sub-zero, and high-velocity hurricane environments.
We source 99.7% virgin electrolytic aluminum ingots. Extrusions are solution heat-treated and artificially aged to T5 or T6 temper, providing a yield strength ≥ 160 MPa and Websters hardness ≥ 12 HW, preventing sash sag across spans up to 6 meters.
Thermal breaks utilize 25% glass fiber reinforced polyamide (PA66GF25) strips knurled and crimped mechanically between interior and exterior profiles. This neutralizes conductive heat transfer, preventing thermal bridging and surface condensation.
Treated through automated 16-stage pre-treatment and powder-coated with architectural Qualicoat Class 2 / AAMA 2605 fluorocarbon (PVDF) resins, resisting over 4,000 hours of continuous neutral salt spray (ASTM B117) in marine zones.
| System Classification | Frame Profile Depth | Thermal Transmittance (Uw) | Air Permeability / Water Tightness | Wind Load Structural Rating | CE Harmonized Standard |
|---|---|---|---|---|---|
| Heavy-Duty Architectural Bi-Fold | 75mm – 85mm | 1.3 – 1.5 W/(m²·K) | Class 4 (600 Pa) / Class 9A (600 Pa) | Class C5 (≥ 2000 Pa) | ✓ EN 14351-1 |
| High-End Pivot Entrance Door | 90mm – 120mm | 1.0 – 1.2 W/(m²·K) | Class 4 (600 Pa) / Class 8A (450 Pa) | Class C4 (≥ 1600 Pa) | ✓ EN 14351-1 |
| Slimline French Sliding System | 65mm – 70mm | 1.4 – 1.6 W/(m²·K) | Class 3 (300 Pa) / Class 7A (300 Pa) | Class B4 (≥ 1600 Pa) | ✓ EN 14351-1 |
| Fire-Rated Steel/Aluminum Hybrid | 60mm – 90mm | 1.2 – 1.4 W/(m²·K) | Class 4 (600 Pa) / Class 9A (600 Pa) | Class C5 (≥ 2000 Pa) | ✓ EN 16034 / EN 14351-1 |
Strategic insights for procurement directors, quantity surveyors, and architectural partners navigating 2025–2030 project specifications, low-carbon regulations, and supply chain digitization.
Global fenestration procurement is undergoing a paradigm shift driven by the European Union’s Carbon Border Adjustment Mechanism (CBAM) and North American LEED v4.1 certification standards. Project specifiers are increasingly mandating low-carbon primary aluminum produced via renewable hydroelectric power or incorporating a certified minimum of 40% to 75% post-consumer scrap. At DERCHI, our extrusion lines are capable of processing circular aluminum billets yielding an embodied carbon rating below 4.0 kg CO2e per kg of aluminum, slashing Scope 3 emissions for institutional real estate developments without degrading mechanical yield strength.
Procurement teams are eliminating coordination bottlenecks on large commercial developments by ditching standard PDF product catalogs in favor of manufacturer-provided Revit / IFC parametric BIM models. Our engineering department delivers project-specific BIM objects populated with empirical thermal data (U-factor, SHGC, visual transmittance), exact structural anchor locations, hardware clearances, and dynamic clash detection points. This level of digital fabrication planning reduces jobsite installation errors by up to 85%.
Building energy codes across Canada, the Northern United States, and Western Europe are tightening operational U-value thresholds. The industry is moving from standard double-glazed 16mm argon assemblies toward triple-glazed, krypton-filled units with warm-edge composite spacers and aerogel-infused polyamide thermal break strips, achieving overall assembly values of Uw ≤ 0.8 W/(m²·K). In commercial entry zones, thermal air barriers and motorized magnetic sealing perimeter gaskets are replacing conventional mohair brush seals to ensure near-zero air leakage under positive and negative pressures.
The convergence of architectural design and home automation has transformed standard mechanical locksets into integrated smart access nodes. High-end residential and commercial projects now demand concealed motorized pivot hardware capable of effortlessly revolving 400kg to 800kg monolithic slabs via wall-embedded capacitive touch sensors, biometric fingerprint recognition, and unified Matter/Zigbee building automation protocols. DERCHI integrates flush-mounted drop-down acoustic drop-seals and invisible magnetic reed switches inside the profile frames directly during factory fabrication.
How we take commercial and residential projects from initial architectural sketches to port delivery and final jobsite installation with total transparency and zero engineering guesswork.
Submit your architectural elevations, rough opening dimensions, and door schedule. Our fenestration engineers analyze site-specific wind pressures (ASCE 7-16 / EN 1991), thermal zones, and local building code criteria.
We generate millimeter-precise CAD shop drawings covering full profile sections, sill flashing integration, anchor placements, and glass bite dimensions for your architectural team’s formal sign-off before manufacturing starts.
Aluminum frames are processed on German 5-axis CNC machining centers. Laser precision cuts, drainage slot milling, and corner-crimping are verified against ISO 9001 quality checklists at every station.
Prior to crating, custom door systems undergo 100% test assembly in our factory. We test roller gliding force, lock engagement, perimeter gasket compression, and digital access modules with video verification shared to client.
Components are vacuum-wrapped, foam-padded, and packed into solid fumigated plywood crates with desiccant packs and steel corner bracing, built to endure multi-modal ocean and intermodal freight routes.
We supply comprehensive commercial invoices, packing lists, CE Declarations of Performance (DoP), and test reports for rapid customs clearance, supported by remote engineering video support for field installation crews.
In-depth technical answers addressing compliance, testing standards, factory audits, packaging, and custom project execution for overseas procurement specialists.
Send your architectural door schedules, CAD sketches, or tender documents. Our senior engineering team will evaluate your thermal, acoustic, and structural load specifications and furnish comprehensive shop drawings and factory pricing within 24 business hours.
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