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Aluminum Extrusion

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

Two aluminum T-slot extrusion profiles with hollow cross sections, stacked with a black connector piece
Black sheet metal enclosure panel with a row of bent louver vents, folded edges and a mounting hole

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.

Black sheet metal enclosure panel with a row of bent louver vents, folded edges and a mounting hole

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
Metal bearing housing with a central bore, covered in visible circular tool marks in its as-machined finish
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
Machined metal plate with a uniform matte bead-blasted finish, showing countersunk holes and a forked cutout
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
Close-up of a metal part with a textured deep blue powder-coated finish and a raised circular boss with a hole
This durable finish offers excellent resistance to wear, corrosion, and UV exposure.
Brushing
Close-up of a metal bearing housing flange with fine directional brush lines, showing a brushed finish
A linear, uniform grain texture is applied to parts, creating a satin-like finish.
Polishing
Macro close-up of a mirror-polished metal corner with a smooth reflective polished finish
Achieves a high-gloss, mirror-like surface that enhances the visual quality of the part.
Black Oxide
Black CNC-machined metal bracket with triangular pockets and drilled holes, showing a matte black oxide finish
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.

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.

Frequently Asked Questions

Aluminium Extrusion

  • What are standard sizes for T-slot framing?

    Common T-slot aluminum extrusion sizes include 10×10, 20×20, 30×30, 40×40, 45×45, 50×50, 60×60, 80×80, 100×100, and 160×160 mm.

    These profiles are widely used for framing and assembly in windows, doors, and structural construction.

    Specific sizes vary by application, so confirm the profile with your drawings.

  • What kinds of extrusion dies are used for custom aluminum profiles?

    Solid dies make simple profiles without internal cavities and are the most cost-effective.

    Hollow dies create enclosed sections or tubes using mandrels and more complex manufacturing.

    Semi-hollow dies produce partially enclosed sections like C-channels at intermediate complexity and cost.

  • Is it possible to recycle aluminum extrusions?

    Yes, aluminum extrusions are 100% recyclable without any loss of strength or quality.

    Recycling reduces manufacturing costs and environmental impact versus producing new aluminum.

    Performance stays the same across multiple uses, making extrusions a sustainable option.

  • Any tips for keeping extrusion production cost-effective?

    Design parts with uniform wall thickness and simple, symmetrical profiles to minimize costs.

    Avoid deep, narrow channels and excessive slots, and use standard alloys like 6061 or 6063.

    Larger quantities and standard tolerances spread tooling costs, and early supplier collaboration catches issues first.

  • What’s the typical cost for custom aluminum extrusion services?

    Cost depends on material, since standard alloys like 6061 and 6063 are more affordable than specialty metals.

    Part size, design complexity, tolerances, and finish requirements all move the price.

    Order quantity and whether new dies are needed complete the quotation picture.

  • Do you support prototyping for aluminum extrusion projects?

    Yes, Tuowei provides prototyping and small-batch services for aluminum extrusions.

    Prototypes test fit and function before full production and verify dimensions, tolerances, and finishes.

    Early design adjustments prevent costly changes later in the process.

  • What wall thickness is generally recommended for custom aluminum extrusions?

    Recommended wall thickness for custom aluminum extrusions typically ranges from 1.0 mm to 2.5 mm.

    Structural or load-bearing parts usually need 2.0 mm or more for strength and rigidity.

    Lightweight or decorative components may be sufficiently strong at around 1.0 mm.

  • What factors determine wall thickness for custom aluminum extrusions?

    Alloy type matters, since softer alloys may need thicker walls while stronger alloys support thinner sections.

    Profile design, press capability, and finishing methods like anodizing all affect minimum thickness.

    Tighter tolerances may require thicker walls, so thickness is set at design stage balancing strength, weight, and cost.

  • Are there non-welding frame or gantry options besides aluminum extrusions?

    Yes, steel tubing with mechanical connections assembles without welding using corner braces, screws, or clamps.

    Mechanical fasteners or adhesives are also viable non-welding options.

    Steel offers higher strength but more complex assembly, while aluminum extrusions stay easier and faster to assemble.

  • What’s the typical tolerance range for custom aluminum extrusions?

    Tighter tolerances increase manufacturing costs through precision tooling and extra inspection steps.

    Standard tolerances suit most applications and help keep costs down.

    At Tuowei, critical dimensions hold within ±0.1 mm and others within ±0.15 mm under ISO 9001-C standards.

  • What is aluminum extrusion?

    Aluminum extrusion is a process that pushes heated aluminum through a shaped die to form profiles.

    The extrusion process creates T-slots, frames, heat sinks, and custom profiles in alloys like 6061.

    Extruded aluminum parts are light, strong, and easy to finish or assemble.

  • Can I order custom aluminum extrusions?

    Yes, you can order custom aluminum extrusion profiles built to your design.

    Profiles include T-slots, frames, and heat sinks with finishes like anodizing.

    Send your profile drawings for a custom extrusion quote.

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Partner with TUOWEI to Shape Your Vision

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Begin your project now and start with the first step towards efficient and high quality manufacturing with Tuowei.

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