Curved Aluminum Square Tub

Zhongchuang curved aluminum square tube (also known as bent aluminum rectangular tube) is a high-end architectural decorative material that combines modern industrial technology with artistic design. It is extruded from high-quality 6063-T5 aluminum alloy and formed into various smooth arcs, waves and irregular curves through advanced CNC stretch bending technology.

Unlike traditional straight aluminum profiles, our curved aluminum square tube breaks the limitations of linear design, bringing flowing lines and dynamic visual effects to architectural spaces. It can be customized with any bending radius, cross-section size and surface finish, making it the perfect choice for creating unique wave ceilings, curved facades, sculptural columns and artistic decorative elements in commercial buildings, hotels, exhibition halls and public spaces.

Colored square tubes are used in the ceiling of children's playgrounds.

Core Product Advantages

Precision CNC Stretch Bending Technology Adopt 5-axis CNC stretch bending equipment with ±1mm radian accuracy, which can realize single arc, double arc, S-curve, wave shape and any irregular curve. The bending process ensures uniform wall thickness, no cracking, no wrinkling and no deformation of the aluminum tube.

Lightweight & High Structural Strength Made of 6063-T5 aluminum alloy with excellent mechanical properties, the hollow square tube structure provides high strength while maintaining light weight. It effectively reduces building load and is suitable for large-span ceiling and facade applications.

Superior Weather & Corrosion Resistance Optional PVDF fluorocarbon coating with KYNAR 500 resin content ≥70% provides excellent UV resistance, acid and alkali resistance. It can be used outdoors for more than 20 years without fading, chalking or peeling, suitable for various climatic environments.

A2 Grade Fire Safety Performance All aluminum inorganic structure naturally reaches A2 grade non-combustible standard (EN 13501-1), which does not burn, produce smoke or release toxic gases in case of fire, fully meeting the fire safety requirements of public buildings.

Excellent Acoustic Performance The open installation structure allows air circulation and sound absorption. When combined with acoustic insulation materials behind, it can effectively reduce noise and improve the acoustic environment of indoor spaces.

Rich Customization Options Support customization of cross-section size (20×20mm to 200×100mm), wall thickness (1.0mm to 4.0mm), bending radius (minimum 300mm) and surface finish. Provide more than 200 standard RAL colors and special finishes such as wood grain, stone grain, metallic luster and brushed effect.

Easy Installation & Low Maintenance Modular prefabricated design with standardized hanging system allows fast installation on site. The smooth and dense coating surface has good self-cleaning performance, requiring only simple regular cleaning without complicated maintenance.

Technical Parameters

Production Process

High-quality aluminum ingots are melted and extruded into straight square tube profiles through a 2000-ton extrusion press. After aging treatment to improve hardness and strength, the profiles are sent to CNC stretch bending machines for precise forming according to design drawings. The bent tubes are then straightened, trimmed and welded as needed. Finally, after strict surface pretreatment (degreasing, phosphating, passivation), the tubes are sprayed with high-performance coatings in a dust-free spraying workshop and cured at high temperature.

Various colors are available

Application Scenarios

Indoor Ceilings: Wave ceilings, curved corridor ceilings, hotel lobby ceilings, shopping mall atriums, office open ceilings

Building Facades: Curved building exteriors, wavy facade cladding, sunshade systems, balcony railings

Decorative Elements: Sculptural columns, art installations, feature walls, room dividers, staircase railings

Public Spaces: Airports, railway stations, subway stations, museums, theaters, stadiums

Special Applications: Car showrooms, brand stores, restaurant interiors, resort decorations

Application in subway stations

FAQ

Q1: What is the minimum bending radius you can achieve?

A: The minimum bending radius depends on the cross-section size and wall thickness of the tube. Generally, we can achieve a minimum radius of 300mm for most standard sizes without causing material damage.

Q2: Can you make S-curves and wave shapes?

A: Yes. Our advanced CNC stretch bending technology can produce any complex curve shape including S-curves, continuous waves and irregular organic shapes according to your design drawings.

Q3: Is curved aluminum square tube suitable for outdoor use?

A: Yes. When finished with PVDF fluorocarbon coating, curved aluminum square tube has excellent weather resistance and can be used outdoors for more than 20 years in various climatic conditions.

Q4: How do you ensure the consistency of bending radii for large projects?

A: We use digital CNC equipment to ensure that each tube is bent to exactly the same radius. All finished products are inspected with precision measuring tools before delivery to guarantee consistency.