Aluminum Profile 20×40 T-Slot Black

Product Description :

The Aluminum Profile Black 20×40 T-Slot Groove 6 is a high-quality, precision-engineered extrusion designed for 3D printers, CNC machines, workbenches, automation frames, and DIY modular projects. Made from EN-AW 6063 aluminum alloy with a black anodized finish (E6Ev6, 10–15µm), it offers excellent corrosion resistance, strength, and durability.

With a 20x40mm cross-section and 6mm groove width, this extrusion is fully compatible with standard M5 fasteners, nuts, and accessories. The core bore (5.5mm) is suitable for M5 threads, making it easy to assemble strong and reliable frame connections.

Despite its lightweight design (0.773kg per meter), the profile provides excellent rigidity, supported by its high area moment of inertia and section modulus values. This makes it ideal for both structural frameworks and motion systems, where strength, stability, and precision are required.

The black anodized surface not only enhances its resistance to wear and corrosion but also provides a sleek, professional look suitable for both industrial and consumer-facing projects.

Technical Properties

• Profile Size: 20x40mm T-slot

• Groove: 6mm

• Core Bore: 5.5mm (M5 compatible)

• Material: EN-AW 6063 aluminum alloy

• Condition: EN 515 | T66

• Weight: ~0.773kg/m

• Surface: Black anodized (E6Ev6, 10–15µm)

• Hardness: > 80 HB

• Strength: Rp0.2 ≥ 200 N/mm², Rm ≥ 245 N/mm²

• Elongation: A ≥ 8%, A50 ≥ 6%

Applications

• 3D printer frames (Voron, CoreXY, Ender, Prusa builds)

• CNC machine and laser cutter structures

• Robotics and automation frameworks

• Workbenches, enclosures, and modular furniture

• DIY motion systems with V-slot/T-slot accessories

The 20×40 T-slot aluminum extrusion (black anodized) offers an ideal balance of strength, durability, and aesthetics, making it the preferred choice for both hobbyist and industrial applications.