Chalco's 4040 aluminum extrusion features a 40x40mm profile with standard 8mm T-slots. Each piece is clear anodized for a clean, professional look and excellent corrosion resistance.
Fully compatible with all 40 series fasteners, this extrusion is ideal for cleanrooms, safety enclosures, fences, and workstations.
4040 4080 aluminum extrusion specifications
Standards: GB/T 5237, GB/T 6892, EN 755, EN 573, EN 12020-2, ASTM B210/B221M
Certifications: RoHS, REACH, ISO 9001, SGS/BV tested
We provide detailed factory quality inspection reports, including key test results such as tensile strength, yield strength, and chemical composition analysis, ensuring every batch fully complies with ASTM and GB standards.Quick Quote
4040 4080 aluminum extrusion product overview
- Profile sizes: 40mm × 40mm, 40mm × 80mm
- T-slot sizes: 8mm, 10mm
- Alloys: 6105-T5, 6063-T6, 6061
- Drop lock: 2°
- Finish: Anodized
- Color: Clear, Black, Silver, Yellow
- Length: 1500mm – 6000mm or custom lengths available
- Parco cut tolerance: ±0.015 in
- Pre-drilled bolt holes and threads available
We understand that compatibility is critical. That's why all of our aluminum extrusions and hardware are designed to work seamlessly with components from all major suppliers.
For custom cut-to-length and machining services, please contact our team. Quick Quote
4040 4080 aluminum extrusion dimensions
Whether you need one piece or a thousand, we’ve got aluminum extrusions in stock, customizable, and sample-ready.
40mm x 40mm (8mm T-Slot) Profiles
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS Black 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS Yellow 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mmx40mm 8mm Aluminum Extrusion
T SLOTS Black 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm Yellow 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS Black 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8mm Aluminum Extrusion
T SLOTS 40mm x 40mm 8.1mm Aluminum Extrusion
T SLOTS 40mm x 40mm Black 8.1mm Aluminum Extrusion
T SLOTS 40mm x 45mm 8mm Aluminum Extrusion
T SLOTS 40mm X 40mm - Two Open T-Slots
T SLOTS 40mm X 40mm T-Slotted Profile
40mm x 40mm (10mm T-Slot) Profiles
40mm x 40mm 10mm Aluminum Extrusion
40mm x 40mm 10mm Aluminum Extrusion
40mm x 40mm 10mm Aluminum Extrusion
40mm x 80mm (8mm T-Slot) Profiles
40mm x 80mm 8mm Aluminum Extrusion
40mm x 80mm 8mm Aluminum Extrusion
Black 40mm x 80mm 8mm Aluminum Extrusion
Black 40mm x 80mm 8mm Aluminum Extrusion
40mm x 80mm 8mm Aluminum Extrusion
40mm x 80mm 8mm Aluminum Extrusion
3 Slot 40mm x 80mm 8mm Aluminum Extrusion
4 Slot 40mm x 80mm 8mm Aluminum Extrusion
4 SLOT 40mm x 80mm 8.1mm Aluminum Extrusion
40mm x 80mm (10mm T-Slot) Profiles
40mm x 80mmLight 10mm Aluminum Extrusion
40mm x 80mmLight 10mm Aluminum Extrusion
40mm x 80mmLight 10mm Aluminum Extrusion
Aluminum extrusion accessories
As a full-service manufacturer, we can supply raw materials (parts and extrusions) as-is, as pre-machined kits ready for assembly, or as fully assembled units according to your specifications. Quick Quote
6-hole connector plate
6-hole slotted angle bracket
8-hole internal corner gusset
3-hole connector strip
Square triangle bracket
T-slot nut
T-slot swivel caster (100mm)
T-slot floor mounting base plate (3 inch)
Gray T-slot cover
As a full-service manufacturer, we can supply raw materials (parts and extrusions) in the following ways:
- Unmachined
- As kits, machined and prepared for assembly according to your specifications
- Or fully assembled by our team
4040 4080 aluminum extrusion performance
For automation systems involving heat-generating electrical or mechanical components, the excellent heat dissipation of aluminum offers a major advantage.
It efficiently conducts heat away from high-temperature parts, reducing the risk of overheating and extending component lifespan.
This makes T-slot aluminum extrusion an ideal choice for electrical enclosures and control cabinets where thermal management is critical.
| Yield Strength (0.2%) | 172 MPa / 25 ksi |
| Tensile Strength | 230 MPa / 33 ksi |
| Elastic Modulus (E) | 10, 000, 000 psi |
| Hardness (Webster Type B) | 12+ |
| Thermal Conductivity | 193 W/m·K (1340 BTU-in/hr-ft²-°F) |
| Specific Heat Capacity | 900 J/kg·°C (0.215 BTU/lb-°F) |
| Coefficient of Thermal Expansion | 23.4 µm/m·°C (13.0 µin/in·°F) |
| Melting Point | 649 °C (1200 °F) |
| Flatness | ≤ 0.004 in/in |
| Straightness | ≤ 0.0125 in/ft, max 0.120 in/20 ft |
| Twist | ≤ 0.25°/ft, max 1.5°/20 ft |
| Squareness | ≤ 0.4° |
| Max Vertical Deviation | 0.002 in/in |
4040 4080 aluminum extrusion advantages
- Made from high-strength 6061 and 6063 aluminum alloys, offering strong structure and durability.
- 2° taper design combined with spring-lock fasteners ensures a secure connection that resists loosening even under vibration.
- Anodized surface provides excellent corrosion resistance and wear resistance, extending the service life.
- Modular design allows for quick assembly, disassembly, and expansion, saving time and costs.
- Four open T-slots provide flexible connections, accommodating a wide range of accessories and components.
- Excellent flatness, straightness, and squareness, meeting high precision assembly requirements.
- Compared to steel structures, no need for welding, pre-treatment, or coating, making it more cost-effective overall.
- Superior thermal conductivity, strength, and bending resistance, suitable for automation, machinery, workstations, and many other applications.
4040 4080 aluminum extrusion applications
We provide product solutions for a wide range of applications in the medical, automotive, and manufacturing industries—solutions that enhance productivity, optimize workflow, and ensure the safety of your valuable employees.
Our design team can assist you during the conceptual stage of your project and will provide quotations and CAD drawings for your review. Quick Quote
Industrial T-slot aluminum workstations
No matter your industrial needs, we provide the perfect workstation solution.
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Stairs, platforms, and walkways
We specialize in custom frames that meet OSHA and ANSI standards for the manufacturing, automotive, and medical industries.
Contact us nowAluminum T-slot conveyor frames and enclosures
Our expertise in automation allows us to design and build conveyor solutions for a variety of environments.
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Custom robotic enclosures
T-slot aluminum remains a unique framing system, perfectly customizable to fit robotic applications.
Contact us nowT-slot aluminum communication boards
Whether for industrial environments, educational institutions, or offices, these communication boards provide an efficient way to display and share information.
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Prefabricated control cabinets
Our control cabinets are widely used in the manufacturing, automotive, and medical industries, including lounges, machine enclosures, factory offices, testing cabinets, and temperature-controlled rooms.
Contact us nowMobile multifunctional carts
Our T-slot aluminum structures allow you to easily add, remove, or replace shelves based on material handling needs.
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4040 4080 aluminum extrusion surface treatment
Anodizing
We machine, vibratory polish, and/or grind the parts (depending on the specifics), and then send them through the anodizing coating process.
Each step includes a visual inspection to ensure the parts meet high-quality standards and consistent surface treatment.
You are not limited to natural or clear anodizing. We can provide any anodizing color you need, allowing your profiles and components to match other applications.
Special coating services
Painting and powder coating are excellent alternatives to anodizing.
Chalco's special coating services give you the flexibility to apply various surface treatments to your project. Since different designs require different functions, we offer a wide range of options to meet your needs:
- Powder coating
- Painting
- Sandblasting
- Chromate treatment
- Anodizing
- Oxidation
- Electroplating
- Galvanizing
Notes
In addition to anodized profiles, we also offer anodized connectors, gussets, brackets, plates, and T-nuts.
When ordering anodized T-slot extrusions, please note that machined or cut areas may expose unfinished surfaces.
We're happy to support any project involving black anodized T-slot profiles. If you can’t find the exact product you need, feel free to contact us anytime. Quick Quote
4040 4080 aluminum extrusion custom machining
We offer a one-stop service for T-slot systems as well as custom parts, accessories, and fittings to help you complete your entire project.
With over 200 stock structural shapes available, we can quickly manufacture your custom brackets or parts.
There’s no need to waste time working with multiple suppliers. Our advanced equipment can handle both single parts and large batch production.
Concept
Design
Complete
All hot selling products and sizes of Chalco T-slot
This is our hot-selling stock product, you can contact us for customization
10 Series Aluminum Extrusion
15 Series Aluminum Extrusion
45 Series Aluminum Extrusion
2020 2040 Aluminum Extrusion
3030 3060 Aluminum Extrusion
4040 4080 Aluminum Extrusion
Chalco service advantages
Compatibility and versatility
One of the key benefits of choosing Chalco T-slot aluminum profiles is their full compatibility with both imperial and metric systems from leading manufacturers.
Experienced team
Our deep industry knowledge ensures you get more than just products—you receive tailored solutions designed specifically for your application needs.
Personalized attention
What sets Chalco apart is our commitment to one-on-one support throughout your entire project.
This level of service is especially valuable for complex or custom builds that require more than off-the-shelf components.
Competitive pricing
Chalco offers highly competitive pricing, making us an ideal choice for customers looking to maximize value without compromising on quality.
Professional and experienced team
Accuracy up to 0.005 inches
Quality guaranteed
Chalco's Custom Packaging
Tailored to your specific needs
Chalco offers a variety of custom packaging options to help customers receive products efficiently and securely.
One of our most popular services is part labeling, ideal for orders that include bars of various lengths, different machining services, or large orders that need to match a bill of materials (BOM).
All parts are packaged by type and labeled with clear, easy-to-read tags. Quick Quote
Carefully packed
Chalco's packaging meets the highest standards.
No matter your specific requirements, your shipment will be carefully hand-packed to ensure safe and damage-free delivery.
- Barcode labeling
- Bubble wrapping
- Individually packaged parts
- Kit packaging
- Part marking
- Unmarked boxes
- All your custom packaging needs — fully supported!
Kit orders
If your order needs to be separated into kits or bundles, that's no problem.
Receiving your items in kit form is especially convenient when you have multiple identical projects — making it easier to organize and set up.
Bulk orders
For large volume orders, our bundling service groups similar products together.
For example, all bars and panels will be packed together.
As with all orders, each item will have clear labeling.
Thanks to this consolidated approach, bundled orders often reduce shipping costs.
4040 4080 aluminum extrusion FAQ
What is 4040 aluminum extrusion?
4040 aluminum extrusion is a metric T-slot aluminum profile measuring 40mm x 40mm, with an open T-slot on each face.
It is commonly used for machine guarding frames, CNC equipment, robotic structures, 3D printers, workstations, display racks, and more.
Where can I find aluminum extrusion near me?
We offer global shipping, with custom lengths and free sample services available. Feel free to contact us for local delivery options or partner information.
What is the purpose of the four open T-slots on a 4040 extrusion?
The four open T-slots on a 4040 extrusion allow accessories to be mounted from any direction, making the structure more flexible and scalable.
This is one of the key advantages of modular design.
What's the difference between 2020, 4040, and 8020 extrusions?
- 2020 aluminum extrusion: Small size, suitable for light-duty applications such as desktop devices and light-duty brackets.
- 4040 aluminum extrusion: Medium size, suitable for medium loads, commonly used for automation frames, workstations, etc.
- 8020 aluminum extrusion: Large size, highest rigidity and load-bearing capacity, ideal for large equipment and heavy-duty structures.
What are the torque specs for fastening 4040 4080 extrusions?
The table below shows the torque (in foot-pounds) required to activate the 2° drop lock function of the extrusion.
The nut and bolt combination are pre-tensioned when tightened to the minimum torque value, forming a vibration-resistant connection.
T-slot aluminum extrusion selection tips
- Compatibility first: Choose manufacturers with highly compatible components to avoid issues with mismatched accessories.
- Free engineering support: High-quality suppliers offer free CAD drawings and design consultation services, helping you quickly kickstart your project.
- Customization and cost-effectiveness: Opt for suppliers with transparent pricing, customizable services, and no hidden fees to help keep your project within budget.
- No minimum order quantity (No MOQ): Perfect for prototype design, small batch trials, or first-time buyers.
- Beyond brands, focus on service: Prioritize suppliers with quick response times, reliable deliveries, and excellent customer service, rather than blindly chasing big brand names.