Featured OEM Architectural Window & Door Systems
Explore our precision-engineered aluminum fenestration series designed for commercial developers, wholesalers, and architectural projects worldwide. Custom sizes, frame profiles, and energy ratings tailored to your target market specifications.
Square Double French Steel Customized Swing Graphic Design Steel Glass Door Modern Entry Doors Steel Windows Exterior
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Customized Size Sliding Doors Double Glass Aluminum Doors Heat Insulation Energy Efficient Balcony Sliding Patio Door for Sale
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Aluminium Lift up Window Balcony Slide up Down Intelligent Electric Vertical Glass With Wind and Rain Sensor Automatic Window
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Penjoy Triple Glazing Low-E Tempered Glass Aluminum Swing Window Energy Star Certified Casement Window for Passive House
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Factory Custom Slim Frame Aluminum Bifold Door Panoramic Folding Glass Door For Balcony, Patio & Sunroom
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Factory Direct Sale Aluminum Buying Bathroom Ventilation Window Prices Door Sliding Windows
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Contemporary Aluminum Alloy Double Door Modern Security Entry Front Exterior Entrance for Homes Soundproof Decorative for Villas
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Hurricane Proof Aluminum Exterior Door Balcony Patio Lowe Soundproof Glass Garden Aluminum Bifold Folding Door
Send an InquiryEngineering Excellence in OEM Aluminum Double-Hung Fenestration Systems
Double-hung windows remain an architectural cornerstone for residential developments, historical retrofits, and high-density commercial complexes across North America, Europe, and Oceania. Unlike standard single-hung systems, custom aluminum double-hung windows feature two vertically sliding sashes that operate independently within an extruded aluminum frame matrix. When evaluating direct-factory sourcing from Foshan—the global hub of architectural aluminum profile manufacturing—B2B buyers, project developers, and fenestration wholesalers must analyze five core engineering parameters: thermal break integration, balance system mechanics, weather sealing integrity, glass configuration options, and structural alloy grading.
Zenic Window & Door Technology Co., Ltd. delivers OEM and ODM manufacturing capabilities engineered specifically to eliminate common performance bottlenecks associated with traditional sash systems, such as air infiltration, sash drag, thermal bridging, and water ingress under high wind pressures.
Prime 6063-T5 Extrusion Profile
Fabricated exclusively from virgin, non-recycled alloy with a structural wall thickness of 2.0 mm to 3.0 mm. Ensures zero warp under extreme physical loads and long-term surface stability for anodizing and AAMA 2605 powder coatings.
PA66GF25 Polyamide Thermal Barriers
Features structural polyamide thermal break strips reinforced with 25% glass fiber. Completely isolates the exterior aluminum profile from the interior frame, curbing conductive heat transfer and mitigating cold-climate condensation.
Constant Force Balance Springs
Engineered with stainless steel constant-force balance spring mechanisms rated for sashes up to 60 kg. Delivers smooth, quiet vertical motion requiring under 15 N of operational effort over 200,000 duty cycles.
Triple EPDM Gasket System
Employs continuous synthetic EPDM weatherstripping with vulcanized corner seals along the sash perimeters and interlock joints. Achieves class-leading resistance to air leakage and wind-driven rainwater.
Dual-Sash Tilt-In Maintenance
Both top and bottom sashes feature heavy-duty spring-loaded tilt latches. Allows sashes to tilt inward at 90 degrees for safe, effortless glass cleaning from inside the building—ideal for multi-story residential towers.
Concealed Pressure Drainage
Integrated pressure-equalized hidden weep channels efficiently redirect wind-driven rainwater outward without visible exterior drainage caps, preserving sleek architectural elevations.
B2B Technical & Performance Parameter Matrix
The table below provides project specifiers and procurement teams with a direct comparison of standard non-thermal profiles versus Zenic’s OEM Thermal Break Double-Hung Window System.
| Technical Parameter | Standard Non-Thermal Double-Hung | Zenic OEM Thermal Break System | Engineering Impact & Value Gain |
|---|---|---|---|
| Alloy Composition | Recycled / Mixed Grade Aluminum | Prime 6063-T5 Virgin Alloy | Eliminates structural fatigue; guarantees 20+ year powder coat adhesion. |
| Thermal Insulation (U-Value) | 2.8 – 3.5 W/m²K | 1.1 – 1.6 W/m²K | Cuts HVAC energy consumption by up to 35%; satisfies strict Energy Star & NFRC codes. |
| Thermal Barrier Material | None / PVC Strips | PA66GF25 Polyamide (24mm - 34mm) | Resists thermal expansion, structural shear stress, and high-altitude temperature swings. |
| Air Infiltration Rating | > 0.30 cfm/ft² | ≤ 0.08 cfm/ft² (AAMA 101 Tested) | Maximizes acoustic soundproofing and prevents interior dust accumulation. |
| Wind Load Resistance | 1200 Pa – 1800 Pa | Up to 4500 Pa (Design Pressure 60+) | Ensures high-rise structural stability and hurricane-zone compliance. |
| Glazing Capability | Single (5mm) or Double (16mm IGU) | Double (28mm) / Triple (42mm) Low-E Argon | Drastically enhances acoustic rating (STC up to 42 dB) and solar heat gain control (SHGC). |
| Hardware Cycle Life | 20,000 – 50,000 Cycles | 200,000 Cycles Heavy-Duty Hardware | Lowers long-term property maintenance calls and structural warranty risks. |
Future Procurement Trends in OEM Aluminum Window Manufacturing (2025–2030)
As international building energy performance standards tighten—driven by the European Union's EPBD directives, North America's ASHRAE 90.1 updates, and Australia's NCC energy compliance mandates—the procurement dynamics for custom OEM aluminum double-hung windows are undergoing structural shifts. Sourcing directors and real estate developers must align their supply chains with four major industrial evolution trends:
1. Decarbonized Low-Carbon Extrusion Profiles
Global developers are requiring Environmental Product Declarations (EPDs) and low-carbon aluminum billets smelted using hydro-electric energy. Factory suppliers in Foshan are adopting closed-loop aluminum recycling and solar-powered manufacturing bases to reduce embodied carbon profiles to under 4.0 kg CO2/kg Al, enabling compliance with international green building certifications like LEED and BREEAM.
2. Smart Motorization & Automated Actuation
The integration of micro-brushless electric balance motors within double-hung window frames allows automatic vertical opening via rain sensors, wind sensors, or smart home automation systems (Zigbee/KNX). OEM suppliers are embedding slimline concealed wiring conduits into frame extrusions to accommodate motorized sash automation without compromising frame aesthetics.
3. Hurricane-Impact & Extreme Weather Resilience
Coastal and tropical project zones increasingly mandate hurricane-impact certified fenestration. Future OEM double-hung windows incorporate multi-layer laminated SentryGlas® (SG) interlayers and reinforced stainless steel interlocking meeting rails capable of withstanding ASTM E1886/E1996 missile impact tests and cyclic pressure loading up to 6000 Pa.
4. Modular Pre-Glazed OEM Delivery Systems
To offset escalating jobsite labor costs in North America and Western Europe, direct-from-factory procurement is shifting toward fully assembled, factory-glazed, unitized double-hung frames. Pre-crated, pre-adjusted units featuring installation flanges (nailing fins) dramatically shorten field installation times and eliminate jobsite glazing errors.
Why Partner with Zenic Window & Door Technology Co., Ltd.
Headquartered in Foshan, China, Zenic Window & Door Technology Co., Ltd. represents over 15 years of continuous engineering leadership in system windows, sliding doors, and architectural shading solutions. Our 20,000 m² state-of-the-art manufacturing facility brings together precision CNC extrusion machining, automated corner crimping technology, specialized insulated glass unit (IGU) assembly lines, and rigorous quality assurance under one unified management system.
Custom Die Extrusion & Tooling
Over 1,200 standard profile dies available or fast-track 14-day custom mold extrusion for specialized architectural designs, custom frame depths (65mm to 150mm), and historical sightline matching.
Global Certification Standard Compliance
Tested and engineered to comply with NFRC, CE, CSA, AS2047, AAMA, and ISO 9001 quality management protocols, ensuring seamless customs clearance and building code approval in 40+ countries.
Sea-Worthy Protective Export Packaging
Every unit undergoes 100% pre-assembly inspection before receiving EPE protective foam wrap, heavy-duty edge corner guards, and fully enclosed fumigation-free plywood crate packaging for zero-breakage ocean shipping.
Frequently Asked Procurement Questions
What is the Minimum Order Quantity (MOQ) for custom OEM aluminum double-hung windows?
Our standard MOQ begins at 50 pieces per custom window schedule. For mixed project orders combining double-hung windows, sliding doors, and casement systems within a single container load, we offer flexible line-item aggregation to optimize container utilization and freight cost.
What thermal performance ratings (U-Value & SHGC) can Zenic double-hung windows achieve?
Depending on the selected frame depth, polyamide thermal break width (24mm to 34mm), and glass configuration (such as Low-E double glazing with argon gas and warm-edge spacers), our systems achieve U-values as low as 1.1 W/m²K (0.19 BTU/h·ft²·°F) and SHGC values ranging from 0.22 to 0.45, fully meeting Energy Star Passive House targets.
Does Zenic support full OEM/ODM branding, custom colors, and hardware customization?
Yes. We offer complete private-label manufacturing services. OEM options include custom extruded frame geometries, custom architectural surface finishes (QUALICOAT powder coating in any RAL shade, fluorocarbon PVDF, wood-grain transfer, and anodized finishes), custom glass screen mesh, and specified hardware brands (Caldwell, Truth, Hoppe, or Siegenia).
What is the typical production lead time and export delivery process?
Standard factory manufacturing lead times range from 15 to 25 working days following shop drawing approval and deposit receipt. Shipping terms include FOB Foshan, FOB Shenzhen, CIF, or DDP. Engineering shop drawings and CAD structural details are issued within 48 hours for buyer sign-off.
How does the factory handle quality control and pre-shipment inspections?
Our quality control protocol requires a 4-step gate check: Raw aluminum alloy hardness testing (6063-T5 standard), coating thickness verify (AAMA 2604/2605 micron thickness check), 100% pre-glazing frame squareness and corner joint crimp test, and final hardware smoothness testing prior to crating.
Ready to Request an OEM Drawing & Factory Direct Quotation?
Send your project window schedule, architectural elevations, or specification documents to our technical sales engineering team. Receive detailed CAD shop drawings, U-value thermal analysis, and competitive FOB/CIF quotation within 24 hours.
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