Aluminum extrusion profiles are manufactured in a wide range of standard and custom sizes to meet diverse industrial, architectural, and consumer needs. As a leading supplier, we specialize in providing globally compliant profiles tailored to markets in Europe, the Americas, Asia, Africa, and Latin America. This guide breaks down the key size categories—from modular T-slot series to dimensional standards—to help distributors, importers, and B2C businesses make informed sourcing decisions.
Standard T-Slot Profile Series
T-slot profiles are the backbone of modular assembly systems, widely used in framing, machinery, and automation. Their dimensions are categorized into “series” based on cross-sectional size and slot width, ensuring compatibility with accessories like brackets and fasteners. Below are the most common series for industrial and DIY applications:
20 Series
LightweightTypical Sizes: 20×20 mm, 20×40 mm
Slot Width: 5–6 mm
Common Applications: Lightweight frames, 3D printers, small assemblies, lab equipment
View Products30 Series
Medium DutyTypical Sizes: 30×30 mm, 30×60 mm, 30×90 mm
Slot Width: 6–8 mm
Common Applications: Workstations, carts, medium-duty machine guards
View Products40 Series
Heavy DutyTypical Sizes: 40×40 mm, 40×80 mm, 40×120 mm
Slot Width: 8–10 mm
Common Applications: Machine bases, conveyors, structural frames, automation parts
View Products45 Series
Extra HeavyTypical Sizes: 45×45 mm, 45×90 mm, 90×90 mm
Slot Width: 10 mm
Common Applications: Heavy-duty frames, large enclosures, high load-bearing structures
View Products50/60 Series
IndustrialTypical Sizes: 50×50 mm, 60×60 mm, 80×80 mm
Slot Width: 10 mm
Common Applications: Heavy machinery bases, gantries, large structural frameworks
View ProductsNorth American Series
Fractional SizesTypical Sizes: 1″×1″, 1.5″×1.5″
Corresponding Series: 10 or 15
Standards: ANSI H35.2 for dimensional consistency
View ProductsNote: In North America, fractional sizes (e.g., 1″×1″, 1.5″×1.5″) are also prevalent, corresponding to series like 10 or 15. These profiles adhere to international standards such as EN 12020 (EU) and ANSI H35.2 (US) for dimensional consistency.
Key Dimensional Specifications
Cross-Section Dimensions
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Width/Height Range:
Standard profiles typically span from 20 mm to 500 mm in width and height. Larger presses can produce sections up to 600 mm for specialized applications (e.g., architectural curtain walls).
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Size Classification:
Profiles are often grouped by weight per meter:
- Small: <5 kg/m
- Medium: 5–20 kg/m
- Large: >20 kg/m
Wall Thickness
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General Purpose:
1.0 mm to 5.0 mm. Thicker walls (e.g., 3–5 mm) enhance rigidity for load-bearing structures.
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Standards Compliance:
Wall thickness deviations are classified into Groups A (simple walls), B (hollow chambers), and C (internal partitions), with tolerances defined by GB/T 14846-2014 (equivalent to ISO 286). For instance, a 3 mm wall in a 100 mm profile may have a ±0.23 mm tolerance for standard grade.
Lengths
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Stock Lengths:
6 meters (~20 feet) is industry-standard for efficient shipping and handling. Custom cut-to-size options are available to reduce waste for end-users.
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Length Tolerances:
Standards like GB/T 14846-2014 specify deviations (e.g., ±5 mm for 6 m lengths) to ensure compatibility during assembly.
Dimensional Standards & Quality Control
To guarantee global acceptability, our profiles comply with:
International Standards
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EU:
EN 12020 (precision profiles) and EN 755-2 (mechanical properties).
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US:
ANSI H35.2 for dimensional tolerances.
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China:
GB/T 6892-2016 (industrial profiles) and GB/T 5237-2017 (architectural profiles).
Critical Tolerances
Key checks include planar gap (flatness), twist, curvature, and cross-section dimensions (e.g., ±0.2 mm for 50 mm profiles under high-precision grade).
Quality Control Process:
- Raw material inspection
- In-process dimensional checks
- Surface finish verification
- Mechanical property testing
- Final dimensional verification
Customization Possibilities
As a factory, we support tailored solutions for unique applications:
Non-Standard Shapes
Angles (L-profiles), channels (U-profiles), tubes, and custom geometries tailored to your specific design requirements.
Size Flexibility
Press capacities allow widths up to 600 mm, with options for irregular contours (e.g., aerodynamic profiles for transportation).
Alloy Adaptability
Use of 6063 (general purpose) or high-strength alloys like 7075 (aerospace) for extreme loads and specialized applications.
How to Choose the Right Size?
Consider these factors when sourcing:
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1
Load Requirements
Heavy-duty applications (e.g., conveyor frames) need thicker walls (≥3 mm) and larger series (40+).
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2
Compatibility
Ensure slot widths match connectors and accessories in modular systems.
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3
Standards Compliance
Verify adherence to regional norms (e.g., EN standards for Europe, ANSI for the US).
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4
Certifications
Request mill test certificates for dimensional reports and material verification.
Conclusion
Aluminum extrusion profiles offer unparalleled versatility in sizes, from lightweight 20×20 mm T-slots to massive 600 mm custom sections. As a direct factory, we ensure precision per international standards, enabling distributors to serve diverse markets with confidence.
Pro Tip: Always share application details with your supplier to leverage tailored sizing advice and avoid over-engineering costs.
Ready to Find Your Perfect Aluminum Profile?
For specific size charts or technical specifications, request our catalog tailored to your region’s requirements!
About the Author
We are a leading aluminum profile manufacturer with over 20 years of experience, supplying B2B clients worldwide. Our products comply with GB, EN, ANSI, and JIS standards, backed by ISO 9001 certification.
