Foshan Pailian Aluminium Ltd is one of the most reliable manufacturers and suppliers of customized large-size aluminum alloy louvers in China. Welcome to wholesale cheap customized large-size aluminum alloy louvers made in China here from our factory. We also accept customized orders.
Zhonglian Aluminum – Your Trusted OEM Partner with 32+ Years of Extrusion Excellence
Zhonglian Aluminum offers unparalleled design flexibility for our large - size aluminum alloy louvers. We can customize the size, shape, and color of the louvers to meet your specific requirements. Whether you need a unique geometric shape or a specific color to match your building's facade, our experienced design team can bring your vision to life. We also offer a variety of louver blade profiles, from flat to curved, to suit different design aesthetics.
Our large-size louvers (300x56x2.5) are precision-engineered using AA6061/6063-T6 alloys, offering superior weather resistance and structural integrity. They allow for greater coverage and enhanced functionality, making them ideal for both commercial and industrial applications. We provide complete vertical integration with strict ISO 9001 quality control.



Products features
✔ Ultra-Stable Structure – 15-25% thicker vanes than industry standard for wind/load resistance
✔ Thermal-Efficient Design – 30-50% better heat dissipation vs. steel louvers
✔ Corrosion-Resistant – Marine-grade anodizing (15-25μm) or PVDF coating (70% Kynar)
✔ Noise Reduction – Aerodynamic vane designs reduce wind noise by 20-35dB
✔ Low Maintenance – Self-cleaning nano-coating options available
✔ Fire-Rated – Meets ASTM E84 Class A (flame spread <25)
Products specification
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Customized Large-Size Aluminum Alloy Louvers |
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Category |
Specification Details |
Testing Standard |
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Material |
AA6061-T6, AA6063-T6 (Aerospace-grade 7075 optional) |
ASTM B221 |
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Max. Single Length |
Up to 8,000mm (Custom splicing available) |
EN 755-2 |
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Max. Assembly Width |
1,500mm (Modular designs for wider coverage) |
EN 14024 |
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Vane Thickness |
1.5-6.0mm (Reinforced options for coastal areas) |
ASTM B209 |
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Vane Spacing |
50-300mm (Adjustable airflow control) |
AMCA 500-L |
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Open Area Ratio |
30%-70% (CFD-optimized for ventilation efficiency) |
EN 13030 |
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Surface Treatment |
• Anodizing (15-25μm) |
AAMA 2604/2605 |
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Color Options |
• Anodized: Silver/Black/Gold |
ISO 7599 |
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Wind Load Resistance |
Up to 3,500Pa (Tested to 150km/h simulated winds) |
ASTM E330 |
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Water Penetration |
Class 4 (No water penetration at 137km/h wind + 75L/m² rainfall) |
ASTM E331 |
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Thermal Performance |
U-value: 1.8-3.5 W/m²K (With thermal break options) |
ISO 10077 |
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Fire Rating |
Class A (Flame spread ≤25, Smoke developed ≤50) |
ASTM E84 |
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Noise Reduction |
20-35dB attenuation (Frequency: 100-5,000Hz) |
ISO 717-1 |
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Tolerance |
• Overall: ±0.5mm/m |
ISO 2768 |
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Structural Warranty |
10 years against material/processing defects |
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Product Applications
Your Premier Extruded Aluminium Louver Blades Manufacturer & Supplier
Commercial Buildings
Our large - size aluminum alloy louvers are widely used in commercial buildings such as shopping malls, hotels, and office complexes. They not only enhance the aesthetic appeal of the building but also provide practical functions like ventilation and light control.
Industrial Facilities
In factories, warehouses, and power plants, these louvers are essential for ensuring proper ventilation. They can expel hot air, fumes, and dust, maintaining a safe and healthy working environment.
Residential Buildings
For high - rise apartments and villas, the customized louvers can be designed to match the architectural style while providing privacy and energy - efficiency benefits.

surface treatment
We provide a wide range of surface treatment options to enhance the appearance and performance of our aluminum alloy louvers. These include anodizing, powder coating, and electrophoresis. Anodizing gives the louvers a hard, protective oxide layer, improving their corrosion resistance and providing a sleek, metallic finish. Powder coating offers a vast selection of colors and textures, allowing for a more customized look. Electrophoresis provides an even more durable and corrosion - resistant finish, making the louvers suitable for the most demanding environments.


cNC Deep Processing
At Zhonglian Aluminum, with advanced CNC machines, we can perform complex machining operations on the aluminum alloy louvers, such as drilling, milling, and threading. This allows for the creation of intricate designs and the integration of additional components, enhancing the functionality and performance of the louvers. The CNC deep processing also guarantees consistent quality and dimensional accuracy, ensuring a perfect fit for every installation.

Strict Quality Inspection
Quality is our top priority at Zhonglian Aluminum. Our Customized Large - Size Aluminum Alloy Louvers undergo a rigorous quality inspection process at every stage of production. From the raw material inspection to the final product testing, we adhere to strict quality standards. Our quality control team uses advanced testing equipment to check for mechanical properties, dimensional accuracy, surface finish, and corrosion resistance. Only products that meet our high - quality standards are allowed to leave our factory, ensuring that our customers receive the best - in - class products.



Packing reference
To ensure the safe transportation of our louvers, we use a comprehensive packaging method. Each louver is carefully wrapped in protective materials, such as bubble wrap and kraft paper, to prevent scratches and damage during transit. The packaged louvers are then placed in sturdy wooden crates or cartons, depending on the size and quantity. We also label each package clearly with product information and handling instructions, making it easy for our customers to receive and install the products.

our service
One-stop aluminum louver blade profiles production service
Customization Service
Our team of experts works closely with customers from the initial design concept to the final product delivery. We listen to your needs and provide professional advice on the best louver solutions for your project.
Technical Support
We offer comprehensive technical support throughout the installation and maintenance process. Our technical team is available to answer any questions and provide on - site assistance if required.
After - Sales Service
We stand behind our products with a reliable after-sales service. If you encounter any issues with our louvers, our customer service team will respond promptly and work to resolve the problem as quickly as possible.


Global Customer Praise
Over the years, Zhonglian Aluminum has served customers around the world, and our Customized Large - Size Aluminum Alloy Louvers have received rave reviews. Customers appreciate our high - quality products, excellent customization service, and prompt delivery. They have reported that our louvers have not only met but exceeded their expectations in terms of performance, durability, and aesthetic appeal. Our long - standing relationships with global customers are a testament to our commitment to quality and customer satisfaction.

company profile
With over 32 years of extrusion experience, Zhonglian Aluminum is a leading source aluminum factory, offering a comprehensive one-stop aluminum production and processing service, including aluminum profile mold opening, extrusion, surface treatment, and CNC deep processing, which streamlines the production process and ensures seamless coordination, saving our customers time and cost. Our extensive experience allows us to produce high-quality products with unmatched expertise. With highly skilled engineers, technicians, and production workers, Zhonglain Aluminum is dedicated to delivering top-notch products. Their expertise and commitment are the driving force behind our success. We invest in the latest technology and state-of-the-art equipment to ensure the highest level of production efficiency and product quality. Our modern manufacturing facilities enable us to meet the most demanding customer requirements.
ordering process
ZHONGLIAN is the leader in production of architectural louvers and grilles. Many buildings, make use of louvers and architectural grilles to provide shade, ventillations, and aesthetics for exterior applications.
ZHONGLIAN ensures that your building's architectural features will be installed to please and protect your building's inhabitants. When you start a project with ZHONGLIAN, we work closely with your team to help detail your design, fabricate the parts.

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