The reason suppliers point to completed profiles from an Indonesia aluminum factory rather than using locally made materials is the extrusion process. Aluminum is extruded by heating the material and pushing it through a shaped steel die. Production of the same complex cross-sections is not possible with mild steel, as each groove, flange, and internal cavity must be cut, bent, or welded separately. Aluminum leaves the die in its final shape, is approximately one-third the weight of steel, and naturally forms an oxide layer that protects the metal, thereby lowering freight rates and eliminating the need for 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 across architectural, commercial, and industrial sectors. Its product range includes standard extrusion profiles for structural framing, façade systems, industrial equipment, thermal management, and many other manufacturing applications, supported by in-house extrusion and finishing capabilities.
Instead of having to pick an extrusion die for each project, suppliers offer thousands of profiles for purchase, often with hundreds of options, established dimensions, published weights per meter, and repeatable geometry. This reduces tooling costs, shortens lead times, and makes future reorders much more predictable. These are some of the most popular aluminum extrusions used in industries worldwide.
1. Flat Bar
The most common stock a fabrication shop pulls out of the rack when they need it is flat bar, which they cut into brackets, spacers and machine bases for a factory floor. A given size is referred to as a section, and each section has its own catalog number which will not change from reorder to reorder. Section 10082 is 33.00 mm wide by 16.00 mm thick with a 2.00 mm radius, weighing 1.421 kg per meter. At 38.00 mm x 19.00 mm, with the same radius and a weight of 1.947 kg/m, this is close behind, and thicker sizes like these require more press force; therefore, purchasing from a tooled catalog is better than commissioning one for a single order.
2. Spandrel
Spandrel is the profile that covers the structural floor line on a building’s exterior, hiding the gap between window bands and floor slabs in curtain wall façades. Profile 62020 spans 97.00 mm with a 9.30 mm return leg at only 0.80 mm wall, weighing 0.260 kg per metre. Holding that wall consistently across the full width is a die design achievement, since metal flow has to stay even from centre to edge or the profile leaves the press twisted.
3. Equal Angle
Equally, equal angle reinforces corners at 90-degree angles at any location needed, such as shelving brackets and structural gussets. Types 20046 and 20047 both carry a 19.00 mm leg, but at 1.20 mm and 1.00 mm wall, weighing 0.120 and 0.100 kg per meter. This 0.20 mm difference in wall thickness is a single die so that an importer can make an educated guess about load and not ship extra weight.
4. C Channel
C Channel or unequal channel guides that move parts in one direction and hold them in the opposite, typically as sliding tracks for partitions, cabinet doors and glazing panels. This variant, numbered 32042, is 12.70 mm wide against a 50.80 mm depth in a 0.90 mm wall, weighing 0.182 kg per meter. A die will produce that shape and shape only on every reorder, but it is very difficult to make that shape in sheet folding.
5. Heat Sink
Heat sink is the shape built to pull heat away from electronic components such as LED drivers, power supplies, and motor controllers, exposing as much fin surface as possible to moving air. Catalog code 96010 is 35.00 mm wide and only 10.00 mm high, with a 1.00 mm wall, weighing 0.313 kg per meter, and has a listed perimeter of 159.253 mm, which approximates the dissipating surface area.
These five profiles provide versatile solutions for general-purpose stock, architectural panels, structural reinforcement, tracks, and thermal management. Because they are produced using Exalum’s established extrusion dies, manufacturers can order proven profiles with consistent dimensions, shorter lead times, and no additional tooling costs
Requesting a Quotation
PT Exalum Metal Indo provides standard and custom aluminum extrusion profiles for the United States, the United Kingdom, Australia, Canada, and other international markets for projects requiring industrial aluminum products in production quantities. Please submit your profile drawing or drawing number, cut length, estimated order quantity, and finishing details (anodizing, powder coating, etc.) to [email protected] or via WhatsApp at +62 811 9429 970 to receive a quotation. Custom die development is also available to create a non-standard profile if necessary.