Renqiu Zhongsheng Metal Products Co., Ltd. is one of the most professional manufacturers and suppliers of aluminum profiles for curtain walls in China. Please feel free to wholesale durable aluminum profiles for curtain walls made in China here from our factory. All customized products are with high quality and low price. Contact us for pricelist.
Structural Characteristics
Multi-chamber design
Sections feature dedicated load-bearing, insulation, drainage, and sealing chambers-each with a distinct role-ensuring both water and air tightness.
01
Thermal break compatible
Can be paired with PA66GF25 glass-fiber reinforced insulation strips. Roll-bonding creates a thermal break that blocks heat/cold transfer, ideal for energy-efficient and ultra-low-energy buildings.
02
Thermal expansion allowance
Nodes reserve gaps for temperature-induced deformation. Combined with flexible connections, this prevents distortion or seal failure from thermal expansion and contraction.
03
Built-in drainage
Integrates equal-pressure drainage channels and water-shedding structures for orderly rainwater discharge, eliminating water accumulation in chambers.
04
Standardized interfaces
Unified bolt grooves, gasket channels, and hardware slots ensure compatibility with mainstream accessories, minimizing on-site assembly errors.
05
Core Advantages
Lightweight yet strong
Density is only 1/3 of steel. After heat treatment, wind load resistance meets high-rise requirements while reducing the main structure's load.
Long-lasting weather resistance
Surface treatments withstand UV, acid rain, and salt spray. Fluorocarbon coating offers over 4000h of aging resistance, with a normal service life exceeding 20 years.
Highly customizable
Hot extrusion enables complex cross-sections for shaped and curved curtain walls. Color, wall thickness, and profile can be designed on demand.
Green and recyclable
Aluminum alloy is 100% recyclable with minimal performance loss. Full life-cycle carbon emissions are far lower than steel profiles.
Construction, Storage & Handling
• Handling: Handle with care. Dragging or impact is strictly prohibited to protect the surface coating.
• Storage: Store indoors in a dry, ventilated area. Use dunnage to keep profiles ≥100mm off the ground, sorted by category. Keep thermal-break profiles out of direct sunlight and avoid heavy stacking.
• Installation: Install mullions first; vertical deviation ≤2mm per 2m. Connect transoms with bolts; avoid on-site welding. Use insulating gaskets where different metals contact to prevent electrochemical corrosion.
• Inspection: After installation, verify flatness. Conduct water spray tests and air tightness checks per specifications.
Factory & Services
• Full-process in-house production: Casting → tooling → extrusion → surface treatment → deep processing. End-to-end control over quality and delivery.
• Custom tooling: Our technical team engages early, rapidly creates molds from drawings, and provides structural optimization and load calculations.
• Warranty & support: 5-year warranty. Technical inquiries replied within 24 hours. Dedicated support for major projects.
• Export & low-carbon: Supports international standards (EN, AAMA). Low-carbon products using recycled aluminum and full export documentation are available.
FAQ
Q: How to choose between 6063-T5 and 6061-T6?
A: 6063-T5 offers high cost-effectiveness and excellent surface finish, suitable for standard curtain walls and low/mid-rise buildings. 6061-T6 has higher strength, ideal for high-rises and coastal high-wind areas. Selection should be based on wind load calculations.
Q: Is thicker wall thickness always better?
A: No. Wall thickness is determined by structural load calculations. Excessively thick walls waste cost and add dead load. The key is a rational cross-section design, with main load-bearing profiles meeting the minimum code requirement of 1.4mm.
Q: How to choose between fluorocarbon and powder coating?
A: Powder coating is cost-effective with more color options, suitable for inland standard buildings. Fluorocarbon coating (PVDF) offers superior weather resistance and longevity, ideal for coastal high-salt areas and high-rise landmarks.
Q: Can you customize special cross-sections based on drawings?
A: Yes. Provide CAD drawings, and we will handle mold design and sampling. Our technical team also provides structural optimization advice to control costs while meeting performance requirements.
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