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Tuowei Precision offers custom aluminum extrusion for high-performance solutions in precision profiles and components.

TUOWEI Precision Aluminum Extrusion Services

At TUOWEI Precision, we provide custom aluminum extrusion services designed for prototypes, low-volume production, and specialized industrial needs. Our team can extrude a wide range of aluminum profiles with complex cross-sections, ensuring each part is tailored to meet unique shapes, designations, and application requirements.

Our advanced manufacturing facilities are equipped with 70 extrusion press lines ranging from 600 tons to 3800 tons, giving us the capacity to handle projects of varying sizes and complexity with accuracy and efficiency. All of our factories are ISO 9001:2015 certified, guaranteeing consistent quality and strict compliance with international manufacturing standards.

What Is the Aluminum Extrusion Process?

At TUOWEI Precision, the aluminum extrusion process begins by heating an aluminum billet and pushing it through a custom-designed die to create profiles with a defined cross-sectional shape. Our process follows a strict and proven production workflow to ensure accuracy, consistency, and performance in every extrusion.

The process starts with die machining, whether solid, hollow, or semi-hollow—followed by billet preheating, typically between 400–500°C. Depending on the alloy and intended application, aluminum can be extruded using direct or indirect methods, in either hot or cold conditions. Once extruded, the profile undergoes controlled cooling, stretching to remove internal stresses, and precise cutting to the required size.

To enhance strength, hardness, and appearance, we also perform aging treatments, advanced surface finishes, and assembly operations when needed. Every extrusion is subject to strict inspection and quality control measures before being securely packaged and delivered

TUOWEI Aluminum Extrusion Tolerances

TUOWEI maintains strict extrusion tolerances to ensure precision, consistency, and reliable performance across every custom aluminum profile.

Feature	Tolerances
Profile Dimensions	±0.10 mm – ±0.50 mm
Wall Thickness	±0.10 mm (≤3 mm walls) / ±0.30 mm (thicker walls)
Straightness	1.0 mm per 1000 mm length
Twist	1.0 mm per 300 mm length
Flatness	±0.15 mm per 25 mm width
Cut Length	±0.50 mm – ±1.0 mm
Angular Tolerance	±0.5°

Surface Finishes for Aluminum Extrusion

Surface finishes for aluminum extrusion enhance durability, corrosion resistance, and appearance while supporting both functional and decorative requirements.

As-Milled

A standard finish with visible tool marks; surface roughness ~125 µin Ra, ideal for functional applications where a smooth finish is not critical.

Bead Blasting

A process that creates a smooth, matte finish by propelling media (like glass beads) at the surface, improving texture and providing an aesthetically pleasing, uniform surface.

Powder Coating

This durable finish offers excellent resistance to wear, corrosion, and UV exposure.

Brushing

A linear, uniform grain texture is applied to parts, creating a satin-like finish.

Polishing

Achieves a high-gloss, mirror-like surface that enhances the visual quality of the part.

Black Oxide

Ideal for steel components, this dark, matte finish provides mild corrosion resistance while maintaining a high-quality appearance.

Advantages

Advantages of Aluminum Extrusion

Aluminum extrusion offers a unique combination of strength, versatility, and cost efficiency, making it an ideal choice for industries that demand lightweight yet durable solutions.

Lightweight Strength: Aluminum extrusions deliver an excellent strength-to-weight ratio, making them ideal for applications where reducing overall weight is crucial without sacrificing durability and structural performance.
Corrosion Resistance: The natural oxide layer on aluminum provides strong resistance to corrosion, ensuring long-lasting performance in outdoor, industrial, and marine environments without the need for heavy coatings.
Design Flexibility: Complex shapes and profiles can be achieved with aluminum extrusion, offering engineers and designers greater freedom to create functional, aesthetic, and cost-efficient solutions.
Thermal and Electrical Conductivity: Aluminum extrusions offer excellent thermal and electrical conductivity, making them suitable for heat sinks, enclosures, and other applications requiring efficient energy transfer.
Sustainability: Aluminum is 100% recyclable without loss of properties, and extrusion supports eco-friendly manufacturing by reducing waste and promoting sustainable product lifecycles.

Applications

Applications of Aluminum Extrusion

Aluminum extrusions are essential across industries due to their exceptional strength-to-weight ratio, versatility, and ability to be tailored for a wide range of structural and functional applications.

Industrial: Custom aluminum extrusions are widely used for machine frames, workstations, and automation systems, providing strength, durability, and design flexibility for industrial applications.
Transportation: Aluminum extrusions play a key role in automotive frames, trailers, and train body components, offering lightweight yet strong structural solutions for various transportation needs.
Construction: In the construction industry, aluminum extrusions are utilized for doors, windows, curtain walls, handrails, and building facades, combining aesthetic appeal with structural integrity.
Energy: Aluminum extrusions are essential in energy applications, including solar panel frames, wind turbine components, and offshore structures, due to their corrosion resistance and lightweight properties.
Electronics: Aluminum extrusions are used in electronics for enclosures, LED housings, and heat sinks, providing excellent thermal management, durability, and precise fit for sensitive components.