Aluminium Extrusions for Sale in South Africa - Profiles, Sizing & Local Stock

Overview: Why Aluminium Extrusions?

Aluminium extrusions are essential building blocks for makers, engineers, and procurement teams seeking flexible, modular frameworks for electronics, robotics, 3D printer chassis, custom enclosures, workstation rigs, and even lab benches. Their lightweight strength, corrosion resistance, and ease of cutting or drilling make them a preferred material for DIY and industrial fabrication in South Africa. At Communica, you'll find a broad selection of profile shapes and standard lengths in local ZAR pricing, suitable for education, rapid prototyping, or scalable industrial builds.

Profile Types & Standard Specifications

Our range of aluminium extruded profiles caters to different load and mounting requirements. Common types include:

• T-Slot/Slotted Profiles (20x20 mm, 30x30 mm, 40x40 mm, etc.) - ideal for modular frames and machine builds
• U-Channels and L-Angles - useful for edge protection and structural reinforcement
• Miniature/Micro Extrusions - for lightweight panels or PCB carriers

See below for a side-by-side spec comparison of popular stock profiles available at Communica:

Profiles are typically supplied in 1 meter or 2 meter lengths, cut from standard 6063-T5 or 6061 aluminium alloy stock for a balance of strength, machinability, and surface finish.

Choosing the Right Aluminium Extrusion

Selecting a profile depends on your application's strength, mounting, and modularity needs. Here's a checklist for South African makers and engineers:

• Determine load requirements: T-Slot 2020/2040 for light to medium builds, 4040+ for high stiffness
• Check mounting compatibility: slot width vs. available fasteners (M4, M5, M8)
• Consider available accessories: brackets, end caps, slot nuts, hinges, wheels
• Evaluate length requirements: 1 m, 2 m, or cut-to-length
• Finish and corrosion environment: clear anodized for lab/indoor, raw for general use

For academic and educational projects, 2020 or 2040 extrusions are popular due to wide compatibility with robotics, CNC, or 3D printer kits, and ready availability of matching fasteners and accessories at Communica.

Pricing Guide: What Affects the Price of Aluminium Extrusions?

Aluminium extrusion prices in South Africa depend on several factors, including profile size, weight per meter, finishing, and market aluminium pricing. At Communica, extruded lengths are priced transparently in ZAR, typically ranging as follows (estimate as of 2024, for reference only):

Bulk discounts or bundle pricing may apply for educational institutions, industry or quantity procurement. Always confirm the latest prices and VAT inclusiveness on the Communica online catalogue, as market pricing can fluctuate.

Accessory Selection & Applications

Aluminium extruded profiles offer superb flexibility when matched with the right hardware. Stock up on:

• Corner brackets, gussets, and joining plates for rigid structures
• Slot nuts (T-nuts), bolts, and caps for secure assembly
• Feet, wheels, and hinges for mobile or adjustable projects
• Panel clamps, end caps, and vibration dampers for custom enclosures

Match your extrusion slot size to compatible fasteners to ensure alignment and strength. For 2020 and 2040, M4/M5 slot nuts are most common; for 4040, M8 is typical. If building for education, shop bundles including extrusions plus fasteners for robotics frames or demonstration rigs.

Getting Your Aluminium Extrusions Locally

All standard profiles are listed under Communica's Tools & Supplies and All Products. You can check branch stock for Samrand, Pretoria, or Cape Town, and request VAT invoices or quotes for institutions. Specify cut lengths or accessory needs when ordering to streamline pickup or dispatch.

Sources

• Communica Aluminium Profiles & Accessories
• SAISC Guide to Aluminium Extrusions
• 6063 Aluminium Alloy Properties - MakeItFrom.com
• Communica Branch Locations & Trading Hours
• Aluminium Federation of South Africa: Extrusion Overview