Aluminum extrusion is the process of pushing a heated aluminum billet through a shaped steel die, allowing an Indonesia extruded aluminum manufactures to produce finished profiles that would require multiple fabrication steps if made from steel. Mild steel is typically supplied as flat bar, plate, or sheet, meaning manufacturers must cut, bend, machine, or weld it into the desired shape. By contrast, aluminum exits the extrusion die in its final cross-section, reducing secondary processing. It also weighs roughly one-third as much as steel and naturally forms a protective oxide layer that provides corrosion resistance without requiring galvanizing before shipment.
PT Exalum Metal Indo has operated its extrusion facility in West Jakarta, Indonesia, for many years, supplying Exalummetal industrial aluminum products to customers in architectural and industrial sectors. The company maintains hundreds of production-ready dies, allowing manufacturers to order proven profile designs with consistent dimensions, repeatable tolerances, and stable weight per metre across multiple production runs. By using existing tooling, customers can often reduce lead times and avoid the additional cost of developing a new extrusion die unless a custom profile is required.
1. Flat Bar
Flat bar is the simplest extrusion shape, and factories buy it as key stock, spacers, and light structural plate for machine bases. Each size is called a section, a single fixed profile with its own catalog number that stays the same on every reorder. Section 10033 is 25 mm wide and 10 mm thick, weighing 0.678 kg per metre, right for key or spacer stock. Section 10204 is larger, at 120 mm wide and 8 mm thick with rounded 2 mm corners, weighing 2.592 kg per metre, and works as a light plate with edges softened to reduce handling damage.
2. Spandrel
Spandrel is the profile factories choose to close broad, thin surfaces on a building or equipment enclosure, where a returned lip keeps the edge from denting during handling. Profile 62060 is 132 mm wide with only a 0.8 mm wall, a 7 mm return lip, and a 3 mm radius on the fold. That radius stiffens the free edge, so the panel stays flat and dimensionally stable over long runs.
3. Equal Angle
Equal angle reinforces corners wherever two surfaces meet at 90 degrees, and factories use it in brackets, frames, and structural gussets. Type 20090 has 38.1 mm legs at only 0.9 mm wall, weighing 0.184 kg per metre, light enough for minimal framing. Type 21021 shrinks the leg to 30 mm but thickens the wall to 5 mm, weighing 0.745 kg per metre for heavy-duty jobs.
4. C Channel
C Channel or unequal channel uses two legs of different heights to do two jobs at once: one side gives a positive stop, and the other clears room for a fastening tool. This variant, numbered 32052, is 38.1 mm wide on the longer leg and 25.4 mm on the shorter one, in a 0.9 mm wall, weighing 0.212 kg per metre, and it shows up often in partition tracks, cable trays, and panel retention systems.
5. Heat Sink
Heat sink is the shape built specifically to pull heat away from electronic components, exposing as much fin surface as possible to moving air. Catalog code 96012 stands 28 mm tall and 33.5 mm wide, with 1.9 mm fins, weighing 0.568 kg per metre, and a listed perimeter of 328.4 mm, the number that correlates directly to how much surface area sheds heat.
These five profile categories cover many of the extrusion requirements found in manufacturing and construction, from lightweight structural components and architectural framing to retention systems and thermal management. Because Exalum already maintains the dies for these standard profiles, manufacturers can source proven sections without the time and cost associated with developing new tooling.
Requesting a Quotation
If your project requires Exalummetal industrial aluminum products in production quantities, PT Exalum Metal Indo supplies both standard and custom aluminum extrusion profiles to customers across the United States, the United Kingdom, Australia, Canada, and many other international markets. To request a quotation, send your profile drawing or section number, required cut lengths, estimated order volume, and finishing specifications, such as anodizing or powder coating, to [email protected] or WhatsApp +62 811 9429 970. If your project requires a non-standard profile, our engineering team also provides custom die development to match your specifications.