180,000m²
Intelligent Manufacturing Base
25+
Years Architectural Expertise
100+
Patents & Global Certifications
AS 2047N6
Severe Weather Rating
Featured Architectural Systems
High-Performance Custom Aluminum Arch Windows
Engineered to architectural schedules with seamless curve geometry, advanced thermal breaks, and commercial-grade structural rigidity.
Engineering Excellence in Arch Aluminum Fenestration
Architectural arches—ranging from Roman semicircular heads, Gothic lancets, and segment heads to continuous eyebrow arches—represent the peak of aluminum extrusion craftsmanship. Unlike straight extrusions where mechanical forces are uniform, curved fenestration requires deep metallurgical knowledge. Profile bending can cause cross-sectional deformation, micro-cracking in the powder coating, or failure of the thermal break's polyamide (PA66) insulation strip.
As an internationally certified manufacturer operating across 180,000 square meters of production space, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) resolves these engineering challenges using automated CNC hydraulic stretch-bending machinery. By managing profile elongation, wall thickness variations, and tensile stress under multi-axis computer control, we maintain precise architectural radii with zero distortion across the structural chamber.
Zero-Distortion Bending
Multi-point stretch bending eliminates profile rippling and ovalization along critical glass rebate channels.
Continuous Thermal Core
Reinforced polyamide insulation bars (PA66GF25) undergo specialized curved insertion to maintain thermal performance.
Dual Vulcanized Gaskets
EPDM foam perimeter seals are corner-molded to eliminate air infiltration across complex non-linear sash interfaces.
AS 2047 Structural Rigidity
Meets AS 2047 N6 cyclonic testing requirements, resisting up to 4500 Pa design wind pressure without air seal failure.
Material Metallurgy and Structural Finishes
Standard arched frames often show micro-fracturing along their outer bend radii when low-grade alloys are used. DERCHI uses prime virgin 6063-T5 and 6063-T6 architectural aluminum billets. Our profiles maintain a structural wall thickness between 1.8mm and 2.2mm, exceeding international commercial standards.
Finishing arched frames requires a controlled, two-step process. Extrusions are bent in their annealed state before artificial aging, or coated with high-elasticity fluoropolymer (PVDF) and AkzoNobel powder coatings. This prevents crazing, pinholing, or color fading along curved surfaces exposed to high UV radiation and maritime salt air.
Procurement & Technology Trends in Arch Fenestration
Global procurement dynamics for aluminum arched window systems are shifting rapidly. Architects, commercial specifiers, and custom homebuilders demand systems that balance complex, fluid geometry with stringent environmental compliance and acoustic isolation.
Ultra-Narrow Sightline Minimalist Arches
Historic arch designs used heavy, bulky framing to support structural weight. Modern architectural trends demand minimal sightlines (sub-45mm visible profiles) paired with structural silicone glazing, allowing maximum natural light into interior spaces while sustaining heavy wind loads.
Smart Glass & Acoustic Lamination
Arched clerestory and high-facade windows are difficult to shade with traditional treatments. Global procurement is shifting toward curved units pre-wired with electrochromic dynamic glass, warm-edge spacers, and triple-layer acoustic PVB laminates to reach STC ratings above 42 dB.
Pre-Engineered Complete Unit Shipments
Site-glazing non-standard curved glass in North America, Australia, or Europe carries high labor risks and costs. Commercial developers increasingly require pre-glazed, factory-tested monolithic assemblies packaged in ocean-ready steel transport crates to streamline field installation.
DERCHI Enterprise Capabilities: Built on 25+ Years of Engineering
DERCHI is the dedicated window and entry door brand of Guangdong Dejiyoupin Doors and Windows Co., Ltd. Over more than 25 years, our engineering and production teams have supplied high-performance systems for major residential developments, private luxury villas, and commercial spaces across the United States, Canada, Australia, the Philippines, and the Middle East.
180,000 m² Production Base
Our fully integrated manufacturing campus in Foshan, Guangdong houses automated profile machining, precision bending, and automated assembly operations under strict ISO 9001 protocols.
Globally Verified Testing
Certified to international building standards including CE, AS 2047 (Australian N6 cyclone tier), and UL fire ratings, supported by more than 100 patents and formal certifications.
Free CAD Shop Drawings
Our in-house technical engineering department provides custom CAD and BIM shop drawings aligned with your rough openings, structural loads, and door/window schedules before production.
Complete Project Supply
Consolidate your procurement across our entire product portfolio: arched windows, large pivot doors, cast aluminum security entry doors, and thermal break folding systems from one reliable factory.
Working directly with DERCHI removes intermediaries and distributor markups. Overseas buyers communicate directly with experienced facade engineers who understand local wind-load classifications, energy codes, and project timelines.
Frequently Asked Questions for Arch Window Procurement
Key technical and logistical questions asked by architects, general contractors, and trade buyers before placing custom orders.
How do you guarantee radius accuracy on custom arch window frames? +
We use multi-axis CNC stretch-bending machines that adjust for the spring-back properties of structural aluminum alloys. Every custom frame is evaluated against a 1:1 CAD-generated digital template and verified with laser measurement tools before glazing channel assembly, holding dimensional tolerances within ±1.0mm.
Can you manufacture arched windows with thermally broken profiles? +
Yes. We specialize in thermally broken aluminum systems using reinforced polyamide (PA66GF25) strips. The bending operation is calibrated to prevent shear separation between the inner aluminum profile, outer aluminum profile, and the structural insulation strip, ensuring continuous thermal barrier performance (low U-factors).
How are curved glass and arch frames protected during international shipping? +
All finished window assemblies are wrapped in multi-layer protective PE film and shock-absorbing corner protectors, then secured inside custom-built fumigated plywood crates with internal steel-strapping reinforcement. Crates are engineered to withstand ocean transit, dynamic vessel motion, and fork truck handling at destination ports.
What certifications support your arch and specialty fenestration systems? +
Our products hold CE certification (EN 14351-1), ISO 9001 quality system registration, AS 2047 cyclonic performance compliance, and UL fire classifications. Certified test reports for wind load resistance, air infiltration, and water penetration are provided alongside your project submittals.
Can you match custom architectural grids, colonial muntins, or gothic tracery? +
Yes. We manufacture internal aluminum grilles (between the glass), external surface-mounted colonial bars, and custom CNC-machined aluminum architectural tracery matching classic Gothic, Victorian, Romanesque, or contemporary geometric profiles according to your architectural elevations.