Thermal Insulated
Export-Grade Portfolio
Curated OEM/ODM Architectural Window & Door Solutions
From thermally broken insulated multi-slide assemblies to heavy-duty panoramic glass façades, each system incorporates electrostatic powder coating to Qualicoat Class 2 standards for rigorous climatic resistance.
AS2047 & CE Certified
Soundproof Double Glazed Aluminum Sliding Doors for Balcony
Industrial / Commercial
Security Thermal Insulated Customized Overhead Sectional Door
Impact Resistant
Hurricane-Proof Impact Glass Exterior Double Glazed Swing French Doors
Architectural Interior
Aluminum Alloy Wood Grain Finished Surface Interior Door
Heavy-Duty Acoustic
Commercial Heavy Duty Thermal Break Aluminum Sliding Door with Mesh
OEM Extrusion Profile
Custom OEM Thermal Break Aluminium Profile for Window & Door
Minimalist Panoramic
Panoramic Large Glass Panel Heavy Duty Sliding Door with Screen
Enterprise Manufacturing Backbone
Precision Engineering by Guangdong Dejiyoupin (DERCHI)
Recognised as one of China's top 10 premier door and window brands, Guangdong Dejiyoupin Doors and Windows Co., Ltd. has anchored Foshan's high-precision architectural manufacturing sector for over 25 years. Operating an expansive 180,000 m² modern manufacturing ecosystem, we maintain fully vertically integrated extrusion, CNC processing, fluorocarbon coating, assembly, and automated QA laboratories.
Our OEM/ODM division caters directly to multinational facade contractors, tier-one property developers, and window distributors worldwide. When engineering high-performance aluminium powder-coated sliding windows, we enforce European CE norms (EN 14351-1), Australian AS 2047 standards, and North American NAFS criteria.
180,000 m²
Production Base
600+
Specialised Staff
100+
Patents & Certs
AS 2047 N6
Cyclonic Testing
Electrostatic Powder Coating Purity
We utilise vertical automated powder coating lines featuring AkzoNobel and PPG powders. Certified to Qualicoat Class 2 and AAMA 2604/2605, our coatings guarantee over 20 years of gloss retention, chalking resistance, and high saline atmospheric protection.
End-to-End CAD/BIM OEM Integration
Our in-house facade engineering department converts conceptual architectural elevations into structural shop drawings within 48 hours. We accommodate bespoke wall interlocks, embedded low-threshold flush tracks, and integrated sub-sill drainages.
CET / EST Engineering Time-Zone Sync
Project success hinges on rapid communication. Our technical project directors operate seamlessly across European Central and US Eastern business hours, ensuring instant submittal approvals, revision tracking, and real-time factory floor QA inspection feeds.
Procurement Intelligence 2026–2030
Future Sourcing & Procurement Trends for Architectural Fenestration
Strategic supply chain dynamics are shifting from simple piece-rate pricing to life-cycle carbon accountability, ultra-narrow sightlines, and airtight thermal compliance.
01
Decarbonised Aluminium & EPD Auditing
Global developers are aggressively mandating Low-Carbon Prime Billets smelted via hydroelectric energy (≤ 4.0 kg CO2e/kg Al). Procurement tenders now routinely require certified Environmental Product Declarations (EPD) according to ISO 14025, enabling tier-1 contractors to claim maximum BREEAM and LEED v4 credits.
02
Hyper-Durable Powder Coating Chemistries
Architects are replacing standard TGIC polyester finishes with bonded super-durable fluoropolymer powders and hyper-matte micro-textured surfaces. Sourcing directors focus heavily on Qualicoat Seaside-class pre-treatment (acid-etching ≥ 2.0 g/m²) to completely prevent filiform corrosion along exposed oceanic coastlines.
03
Consolidated Envelope Procurement Bundling
Forward-thinking purchasing consortiums avoid single-item manufacturers. By bundling powder-coated sliding windows with matching entrance pivot doors, soundproof balcony multi-slides, and garage systems under DERCHI’s single industrial roof, procurement directors slash freight volume loss by up to 32%.
Engineering Specifications
Technological Evolution: Next-Gen Aluminium Sliding Systems
Modern sliding windows have moved far beyond traditional manual sashes. They represent complex multi-physics assemblies balancing structural stiffness, thermal separation, and concealed water management.
| Performance Dimension | Legacy Residential Sliding Windows | DERCHI Next-Gen OEM/ODM Specification | Engineering Compliance Target |
|---|---|---|---|
| Alloy Composition & Temper | Recycled 6063-T5 with variable tensile strength | Virgin 6063-T6 or structural 6061-T6 prime architectural billet | EN 755-2 / ASTM B221 Minimum 160 MPa Yield |
| Thermal Separation System | Non-thermal or 14.8mm PVC generic isolators | 24mm–34mm Polyamide (PA66 GF25) reinforced with glass fibre | EN ISO 10077-2 (Overall Uw ≤ 1.2 W/m²K) |
| Surface Coating Resilience | Standard industrial polyester (40–50μm) | Qualicoat Class 2 Super-Durable Powder (60–90μm) + Pre-anodising | AAMA 2604/2605 / ISO 2810 (5-Year Florida Test) |
| Weather Sealing & Water Barrier | Standard wool pile brushes without barrier fin | Dual-durometer co-extruded EPDM + continuous vulcanised corners | EN 12208 Class 9A / AS 2047 Class N6 (Water > 450 Pa) |
| Bogie Hardware & Gliding Force | Nylon wheels on extruded soft aluminium rails | Heavy-duty 316 Marine Stainless Steel rollers on CNC stainless tracks | EN 13126-15 Class 4 (≥ 25,000 continuous cycles, ≤ 30N effort) |
In contemporary high-rise residential towers and luxury coastal villas, structural wind loads consistently exceed 3000 Pa. To maintain expansive floor-to-ceiling glass without visual profile bulk, our design teams leverage reinforced central interlocks with inert steel stiffeners, delivering exceptional moment of inertia (Ix > 120 cm⁴).
Simultaneously, the transition toward concealed micro-drainage architecture eliminates unsightly weeping holes on the outer face of the window frame. By routing water downward into a multi-chamber sub-frame collector with calibrated non-return flap valves, DERCHI sliding window systems withstand driving cyclonic rain without back-siphonage into building cavities.
Comprehensive Due Diligence
Frequently Asked Sourcing & Procurement Questions
Clear, technically rigorous answers addressing the most common concerns of project developers, specifiers, and procurement teams before issuing RFQs.
What are your minimum order quantities (MOQ) and lead times for bespoke OEM/ODM extrusions?
For standard catalogue profiles with custom RAL powder-coated finishes, our minimum batch quantity is as flexible as a single container load (approximately 150–250 m² depending on sash dimensions). For custom profile extrusion dies requiring brand-exclusive molds, tooling lead time is 12–15 business days, followed by a 20–25 day production cycle upon shop drawing sign-off.
How does DERCHI guarantee zero shade deviation across multi-batch powder-coated frames?
Colour uniformity is maintained via digital spectrophotometer testing (ΔE ≤ 0.5 under standard D65 illuminant). We use unified powder batches from single master lot codes sourced from AkzoNobel or Tiger Drylac, and control bake-oven dwell curves through 12-point thermal data loggers to eliminate undertone drift or sheen anomalies across extensive project schedules.
Can your sliding window systems achieve European Passivhaus or low-U value thresholds?
Yes. Our multi-chamber thermally broken sliding platforms accommodate triple-glazed insulated glass units (IGU) up to 48mm in thickness. Combined with warm-edge spacer bars (such as Technoform), 90% Argon gas fills, and low-e soft coatings, our systems reach whole-window thermal transmittance values of Uw ≤ 1.1–1.3 W/m²K, easily complying with German GEG and UK Building Regulations Part L requirements.
What export packaging protocols are implemented to prevent transit abrasions during ocean shipping?
Each individual extrusion profile is wrapped in a 60μm peelable low-tack protective film. Windows are subsequently packaged in 5-ply multi-corrugated impact wraps with custom plastic edge caps, vacuum-sealed inside heat-treated, fumigated ISPM-15 plywood crates. Steel hoisting points and interior desiccant packs prevent container-rain moisture damage across maritime trade lanes.
What structural and water test reports are supplied alongside European/American project deliveries?
Every export contract is backed by accredited laboratory reports: EN 1026/12207 (Air Permeability), EN 1027/12208 (Watertightness), EN 12211/12210 (Wind Resistance), and AS 2047 cyclonic impact evaluations. We furnish comprehensive Declarations of Performance (DoP) accompanied by CE markings and mill test certificates (MTC) tracking alloy chemical purity.
Accelerate Your Project Schedule
Request Your Custom Engineering Submittal & Factory Quote
Whether you require standard thermally broken sliding windows or bespoke structural profiles engineered to your precise architectural schedule, our engineering team will deliver structural calculations, CAD shop drawings, and competitive direct-from-factory pricing within 24 hours.
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