Custom Double Angle Aluminum Extrusion

double angle extruded aluminum

HTS is a specialized aluminum extrusion manufacturer in China, focusing on custom double angle aluminum extrusion. We offer one-stop service from mold design to fast delivery, ensuring high quality and reliability.

Double Angle Aluminum Extrusion

Double angle extruded aluminum refers to aluminum profiles produced by the extrusion process, featuring two angular arms in their structure. The cross-section is typically “V”-shaped or “L”-shaped, with arm lengths that can be equal or unequal. These profiles are widely used in construction, machinery, aerospace, and other fields.

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Processing Capabilities

As a leading aluminum extrusion manufacturer in China, we specialize in high-quality double angle aluminum extrusions for various industries. Our in-house mold design and manufacturing ensure each profile meets clients’ precise requirements. From raw material extrusion to advanced surface finishing and machining, our integrated production process allows us to deliver double angle aluminum profiles that meet strict quality standards and fit the unique needs of every project.

mold

Mold Design and Development

We have extensive expertise in designing and fabricating extrusion molds specifically for double angle profiles. Our in-house mold team collaborates closely with clients, working from technical drawings or physical samples to develop molds that produce consistent, high-precision double angle extrusions. Typically, the mold development process takes about 7 days, after which we supply samples for client approval prior to mass production.

precision extrusion

Double Angle Aluminum Extrusion

Our facility operates over 40 modern extrusion lines, equipped with advanced machinery including a state-of-the-art 6000-ton extrusion press. This allows us to produce double angle aluminum profiles in a variety of sizes and thicknesses. Whether for general industrial use or for specialized applications in sectors like construction and precision engineering, our extrusion capabilities ensure we can meet wide-ranging customer demands.

Anodizing workshop

Surface Treatment

To further enhance our double angle aluminum extrusions, we offer a range of advanced surface treatments. These include one anodizing and electrophoretic coating line to improve corrosion resistance, four powder coating stations (with both horizontal and vertical systems) for durable and colorful finishes, one PVDF fluorocarbon line for superior weather protection, six wood grain transfer lines to provide decorative effects, and two sandblasting units to ensure optimal surface preparation. These finishing options enable us to deliver double angle profiles that are not only functional but also visually attractive and suitable for demanding environments.

Raw Materials for Double Angle Aluminum Extrusion

Double angle aluminum extrusions are often made with 6061 or 6063 aluminum alloys, each with unique properties to suit different application needs:

6061-T6:
Double angle aluminum extrusions produced from 6061 alloy exhibit excellent mechanical properties and are renowned for their strength and versatility. In the T6 temper, 6061 provides a typical tensile strength of at least 290 MPa and a yield strength of at least 240 MPa, with elongation between 8–10%. This alloy also features good corrosion resistance and superior machinability, making it ideal for structural applications, mechanical parts, and aerospace components where higher mechanical performance is essential.

6063-T5/T6:
6063 alloy is preferred for double angle aluminum extrusions requiring a finer surface finish and easier fabrication. In the T5 or T6 temper, 6063 extrusions deliver a tensile strength of at least 205 MPa and a yield strength of at least 180 MPa, with elongation also between 8–10%. Owing to its excellent extrudability and smooth surface appearance, 6063 is widely used in architectural profiles, window frames, and decorative applications, particularly where high-quality anodizing and aesthetics are important.

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Surface Treatment Options

We offer a wide range of surface treatment options for our aluminum products. Below are some commonly used and recommended surface finishing choices for Double Angle Aluminum Extrusions:

Surface Treatment Effect Suitable Environment
Anodizing Wear-resistant, insulating, various colors available Suitable for indoor and outdoor use
Powder Coating Rich colors, strong weather resistance Building exteriors
Electrophoretic Coating High corrosion resistance, smooth surface Humid or chemical environments

Features of Double Angle Aluminum Extrusion

1. High Strength and Lightweight: The lightweight nature of aluminum alloys combined with the double angle design significantly enhances load-bearing capacity.

2. Corrosion Resistance: The natural oxide layer or additional surface treatments (such as anodizing) allow it to perform well in harsh environments.

3. High Precision: The extrusion process ensures dimensional consistency, making it suitable for precise assembly.

4. Customizability: Angles, wall thickness, and lengths can all be tailored according to specific requirements.

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Applications of Double Angle Aluminum Extrusion

Double angle aluminum extrusions are widely used across various industries due to their unique structural advantages and versatility. Common application areas include:

1. Structural Frameworks: Used in industrial racking, shelves, machinery frames, and equipment supports due to their high strength and stability.

2. Architectural Components: Ideal for building facades, window frames, curtain walls, and decorative trims.

3. Transportation: Utilized in vehicle frames, truck bodies, caravan, and railway structures where lightweight and high load-bearing capacity are required.

4. Furniture Manufacturing: Applied in modern office furniture, display racks, and partitions for their aesthetic appeal and easy assembly.

5. Electrical and Mechanical Assemblies: Suitable for enclosures, brackets, cable trays, and precision assembly structures.

6. Solar Energy: Used as mounting brackets and support frames in photovoltaic systems due to their corrosion resistance and strength.

7. DIY and Custom Projects: Preferred in modular construction systems and custom fabrication projects for their ease of processing and customization.

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Factory Show

Our factory features 40 extrusion lines for efficient aluminum profile production. We offer a full range of surface treatments—including anodizing, electrophoresis, powder coating, sandblasting, and wood grain transfer printing—with advanced equipment. In-house casting, aging, annealing, water cooling, and machining ensure complete control and high-quality results for all products.

RFQ of Extruded Aluminum Profile

1. Structural Efficiency: The double angle design distributes stress more evenly, offering over 30% higher load-bearing capacity compared to single angle profiles.

2. Easy Installation: Fewer connectors are required, reducing assembly costs.

3. Versatility: Compatible with multiple processing methods such as welding, riveting, and bolted connections.

1. High Load Applications: Choose 6061-T6 alloy with a wall thickness of at least 3 mm.

2. Corrosive Environments: Prefer 3105 alloy with anodized surface treatment.

3. Cost-Sensitive Projects: 6063-T5 provides an economical solution.

The heat treatment of aluminum extrusions determines their mechanical properties, strength, and suitability for specific applications. Among the various heat treatment methods, T5, T6, and T66 are the most commonly used. Here’s an in-depth look:

Heat Treatment StateCooling MethodStrengthKey Features and BenefitsApplications
T5Air cooling (fan)ModerateAdequate strength, good dimensional stability, used for architectural purposes.Windows, doors, curtain walls, building structures.
T6Water quenching (fast)HighHigher strength and hardness, ideal for industrial and structural uses.Automotive, aerospace, machinery, transport parts.
T66Water quenching (fast)Very highOptimized mechanical properties for higher strength and performance demands.Automotive, rail transportation, high-end machinery.

Other Heat Treatment States 

  • T4: Solution heat-treated and naturally aged. Used in applications requiring intermediate strength and enhanced formability.
  • T7: Overaged for better stress-corrosion resistance, often used for aerospace and marine purposes.
  • O (Annealed): Very soft condition suitable for extensive forming or bending requirements.
  • F (As-Fabricated): No heat treatment applied, used in non-critical applications with low strength requirements.

Aluminum extrusions undergo various surface treatments to enhance aesthetics, corrosion resistance, and functionality. Here are the common surface treatment methods used in the industry:

Main Surface Treatment Methods

  1. Anodizing (Oxidation)

    • Process: A controlled electrochemical process that forms a protective oxide layer on the aluminum surface.
    • Features:
      • Provides a durable, corrosion-resistant, and environmentally friendly finish.
      • Produces a metallic finish with a variety of natural tones (e.g., silver, black, bronze).
      • Improves surface hardness and protects against scratching.
    • Applications: Architectural frames, decorative profiles, heat sinks.
  2. Electrophoresis Coating (E-Coating)

    • Process: After anodizing, the aluminum is coated with paint using an electrochemical process.
    • Features:
      • Enhances corrosion resistance and offers a smooth, glossy finish.
      • Provides more color and texture variation compared to anodizing alone.
    • Applications: Furniture profiles, indoor architectural components.
  3. Powder Coating

    • Process: Electrostatic application of powder paint, followed by curing under high temperature to form a solid coating.
    • Features:
      • Wide variety of colors and textures.
      • Excellent weather resistance and corrosion protection.
      • Cost-effective and highly versatile.
    • Applications: Outdoor frames, fences, railings, general industrial use.
  4. PVDF Coating (Polyvinylidene Fluoride)

    • Process: A specialized fluoropolymer coating is applied in multiple layers, commonly over a pretreated surface.
    • Features:
      • Exceptional weather resistance and UV stability.
      • Highly durable, resistant to fading, chalking, and chemical damage.
      • Ideal for long-term outdoor use.
    • Applications: Curtain walls, high-performance architectural facades.
  5. Wood Grain Transfer Printing

    • Process: A heat-transfer printing process that applies a wood grain effect onto a pre-coated aluminum surface.
    • Features:
      • Mimics the appearance of wood while retaining aluminum’s durability.
      • Lightweight and weather-resistant alternative to natural wood.
    • Applications: Furniture, decorative coverings, outdoor panels.
  6. Film Lamination

    • Process: Adhesive application of a protective or decorative film onto the aluminum surface.
    • Features:
      • Provides a glossy, textured, or patterned finish.
      • Often used for applications requiring specific textures like marble or leather effects.
    • Applications: Interior decor, windows.

Pre-Treatment Processes

Prior to surface treatment, the aluminum surface can be pre-processed for specific textures or finishes:

  1. Brushing/Polishing

    • Removes surface imperfections and creates a smooth, reflective finish.
    • Often used for decorative purposes.
  2. Sanding/Grinding

    • Produces a matte or satin finish by applying abrasives.
  3. Shot Blasting/Sandblasting

    • Sprays abrasives at high velocity to create a textured surface, often used before anodizing for a uniform appearance.
  4. Stretching and Tension Leveling

    • Straightens the aluminum profile and improves shape accuracy after extrusion.

Cost and Durability Comparison Table

Treatment MethodProcess CostSurface DurabilityWeather ResistanceApplications
Anodizing (Oxidation)MediumVery DurableHighArchitectural frames, industrial parts.
Electrophoresis (E-Coating)Medium-HighDurableMediumFurniture, indoor parts, decorative uses.
Powder CoatingMediumHighly DurableHighOutdoor frames, industrial fixtures.
PVDF CoatingHighExtremely DurableExcellentCurtain walls, high-end exteriors.
Wood Grain PrintingMediumModerate (topcoat dependent)MediumDecorative panels, furniture.
Film LaminationLow-MediumModerateLowIndoor decorations, windows.
Brushing/Sandblasting (Pre-Treatment)LowNot Applicable (Preparation only)N/APreparation for further treatment.

. Anodizing (Oxidation)

  • Common Colors:
    Natural silver
    Black
    Champagne
    Light bronze
    Dark bronze
    Gold

2. Electrophoresis Coating (E-Coating)

  • Common Colors:
    Black
    Champagne
    Light bronze
    Dark bronze
    Custom metallic colors

3. Powder Coating

  • Colors:
    Can match any color based on the RAL color chart.
    Offers textures like matte, gloss, satin, and custom finishes.

4. PVDF Coating (Polyvinylidene Fluoride)

  • Colors:
    Also customizable using the RAL color chart.
    High-end finishes with matte or glossy effects.

5. Wood Grain Transfer Printing

  • Colors and Patterns:
    Mimics various wood types (e.g., oak, walnut, teak, mahogany).
    Custom patterns available based on provided samples.

6. Film Lamination

  • Colors and Patterns:
    Includes textures like marble, leather, and solid colors.
    Custom finishes and patterns based on provided samples.

Pre-Treatment Options (Impact on Final Color)

  • Brushing/Polishing: Produces smooth or reflective metallic surfaces.
  • Sandblasting: Adds a rough, matte texture before the final surface treatment.

We provide a wide range of machining services for aluminum extrusions to meet specific requirements. These include cutting off/section removal, slotting, drilling holes, tapping threads, bending, and localized stamping to create deformations. For example, we can trim extruded profiles to custom lengths, mill precise grooves, create threaded holes for fasteners, bend profiles into specific shapes, or apply localized stamping to achieve custom forms or deformation.

In addition to these processes, we also offer TIG/MIG welding to join aluminum components for a solid structure. Furthermore, our services include assembly of common accessories, such as brackets, corner connectors, screws, hinges, end caps, and rubber seals, providing complete and ready-to-install profile solutions tailored to your project needs. This ensures that we can handle everything from simple cuts to highly customized fabrication and assembly, all with precision and efficiency.

For custom aluminum extrusion projects, we accept a variety of drawing formats, including CAD files, STEP files, and PDF files. However, for extrusions that require additional machining processes, it’s recommended to provide STEP files, as they ensure precise 3D modeling for machining accuracy.

While PDF files are acceptable, converting them into CAD drawings may result in the loss of certain details, requiring us to manually redraw the design, which could increase lead time. For the fastest and most accurate quotation, we recommend providing CAD files (e.g., DWG/DXF) and STEP files to ensure efficient design evaluation and pricing.

Mold fees are an essential part of the custom aluminum extrusion process. Since every order requires a uniquely designed mold tailored to specific requirements, these molds cannot be used for other products. Therefore, the mold fee is necessary and non-negotiable.

We require 100% upfront payment of the mold fee before mold development begins to ensure timely production. However, as a token of appreciation for your support, we offer a refund of the mold fee or equivalent discounts once the order reaches a certain production volume. Specific policies can be discussed based on your order volume and collaboration details.

Our minimum order quantity (MOQ) varies depending on the size of the product. For smaller-sized products, the MOQ is typically 500kg, while for larger-sized products, it is 2 tons.

We will specify the exact MOQ requirements during the quotation process. If your order quantity does not meet the MOQ, we can still arrange production, but an additional fee will be applied to cover mold preheating and production setup time. Rest assured, this extra fee will be reasonable, and we aim to keep it as minimal as possible to ensure smooth cooperation.

Packaging can be customized according to your needs. Options include using protective film or paper to separate and protect the surface, or foam film for additional surface protection. Products can be palletized or packed into cartons, and the quantity per pallet or carton can be specified by the customer.

The standard packaging involves bundling several pieces together with plastic wrap and then securing them onto pallets. Any packaging requirements beyond the standard will be accommodated, and the associated costs will be clearly provided to the customer.

Mold production typically takes 7 days. After the sample is confirmed, producing a full container load of 26 tons generally requires 14 days for extrusion alone. If surface treatment is required, an additional 3 days will be needed. For machining, extra time will be required depending on the complexity and volume of the machining work. The exact additional time for machining will be determined based on the specific processing requirements.

Aluminum profiles are naturally corrosion-resistant due to the formation of a thin, protective oxide layer when exposed to air or water. This oxide layer is stable and self-repairing, meaning that even if the surface is scratched or cut (such as at exposed ends or during processing), the aluminum will not rust or corrode like iron or steel. Instead, the exposed areas will quickly form a new oxide layer, providing continuous protection against further oxidation.

With proper design, installation, and maintenance, aluminum profiles can last for decades, even in challenging environments. For example, untreated aluminum can easily withstand 20-30 years in outdoor applications, while profiles with surface treatments like anodizing or powder coating can last even longer, often exceeding 50 years. This makes aluminum an excellent choice for applications where durability and long-term performance are essential.

The price of aluminum profiles consists of several components: raw material costs, extrusion processing fees, surface treatment fees, machining costs, and additional packaging fees. Among these, the cost of aluminum as a raw material tends to fluctuate frequently, while other fees remain relatively stable. Due to these fluctuations, our quotations are typically valid for 7 days.

Pricing can be structured in different ways depending on the product and requirements. It can be calculated by weight (e.g., cost per ton), by length (e.g., cost per meter), or by piece (e.g., cost per unit). For products involving extensive machining, such as heat sinks, pricing is generally calculated on a per-piece basis to accurately reflect the additional processing costs. This flexible pricing approach ensures the quote is tailored to the specific needs of the customer.

We can manufacture aluminum profiles in compliance with technical requirements that meet European standards (EN), American standards (ASTM/AA), or other standards as specified by the customer. Custom production is tailored to ensure that the profiles meet the specific standard requirements requested.

Our production equipment is designed for the metric system. If the drawings provided are in the imperial system, we will convert them into metric units for production to ensure accuracy.

It is important to note that while we can machine imperial-threaded holes for fasteners, if you require us to supply matching imperial fasteners, they may not always be available in stock. Custom orders for imperial fasteners typically require a large volume for production. Please consider this when planning your project.

The majority of aluminum profiles we produce are custom-made and do not have existing molds. However, for some standard profiles such as square tubes, round tubes, U-channels, and T-SLOT profiles, we do have existing molds, and in some cases, small quantities in stock.

For certain specialized profiles, like ladder aluminum profiles, we have some molds that may be used across similar designs. For curtain wall and window/door profiles, we have developed a number of molds, though most are tailored to the Chinese domestic market.

Additionally, for furniture-related profiles, such as cabinet handles, cabinet door frames, skirting boards, tile edge trims, wall panel trims, stair anti-slip strips, partition aluminum profiles, corrugated aluminum profile (like long-span profiles), LED light channels, and photovoltaic frame supports, we offer a selection of ready-made designs and some existing molds.

While we have limited stock of standard profiles like square tubes, round tubes, U-channels, and T-SLOT profiles, we recommend contacting our sales team for details on availability and further assistance.

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