Aluminum Profile 20×40 T-Slot Silver

Product Description :

The Aluminum Profile 20×40 T-Slot Groove 6 Silver Anodized is a strong, lightweight, and versatile extrusion designed for 3D printers, CNC machines, automation systems, laser cutters, and DIY modular projects. With its 20x40mm cross-section and 6mm slot width, it offers excellent rigidity while remaining easy to assemble with standard M6 fasteners and T-slot accessories.

Made from EN-AW 6063 aluminum alloy under T66 condition, this profile provides outstanding mechanical strength (Rp0.2 ≥ 200 N/mm², Rm ≥ 245 N/mm²) combined with excellent corrosion resistance thanks to its E6Ev1 anodized silver finish (10–15µm). The core bore of 5.5mm is suitable for M6 threading, ensuring reliable and secure connections in modular frames.

Despite its robustness, the profile weighs only ~0.773kg per meter, making it easy to handle and efficient for lightweight but durable structures. The optimized moment of inertia values guarantee stability under load, making this extrusion suitable for both motion systems and structural applications.

Whether you are constructing a CoreXY 3D printer, CNC router, or modular workbench, the 20×40 T-slot aluminum extrusion offers flexibility, reliability, and professional quality.

Technical Properties

• Profile size: 20x40mm (B-type)

• Slot width: 6mm / Slot depth: 5.5mm

• Core bore: 5.5mm (M6 thread compatible)

• Material: EN-AW 6063 aluminum alloy

• Condition: EN 515 | T66

• Surface: Silver anodized (E6Ev1, 10–15µm)

• Weight: ~0.773kg/m

• Hardness: ≥ 80 HB

Mechanical Values

• Yield Strength Rp0.2: ≥ 200 N/mm²

• Tensile Strength Rm: ≥ 245 N/mm²

• Elongation A: ≥ 8%

• Elongation A50: ≥ 6%

• Area: 285.3mm²

• Inertia (IX): 11,875 mm⁴

• Inertia (IY): 45,789 mm⁴

• Section Modulus Wx/Wy: 1187.5 / 2289.5 mm³

Applications

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

• CNC machine and laser cutter structures

• Robotics and automation systems

• Modular furniture, benches, and enclosures

• DIY motion systems and prototyping

The 20×40 T-slot aluminum extrusion (silver anodized) delivers the perfect balance of strength, corrosion resistance, and precision, making it a top choice for professionals, makers, and industrial applications.