Tooling cost decides more export sourcing decisions than material price does. A custom extrusion die has to be designed, cut, trialled, and corrected before the first usable metre leaves the press, and that cost lands on a single order unless the profile repeats for years. Ordering from the existing catalog held by Indonesia aluminum factory manufactures removes that line item entirely, since the die already exists and has already been proven in production. The extrusion process then does what steel fabrication cannot, delivering a finished cross-section, internal cavity, or fin array in one pass instead of several welded operations.
PT Exalum Metal Indo runs its extrusion facility in Tangerang, Indonesia, shipping industrial and architectural profiles to buyers in domestic and overseas markets. The current range of Exalummetal industrial aluminum products is catalogued by section number, a fixed profile reference that holds its dimensions on every reorder. For an importer maintaining stock across several shipments, that consistency is what keeps parts interchangeable. These six profiles below make up most export volume from the factory.
Rectangular Hollow
Rectangular hollow section resists twisting across its whole enclosed area, which matters for cantilevered arms, sign posts, gates, and display framing. Section 45062 is a light 20 by 10 mm at 0.80 mm wall, 0.120 kg per metre, while section 45204 is a structural 100 by 50 mm at 2.50 mm wall with a 1.00 mm radius, 1.962 kg per metre. The radiused corners are not cosmetic; they help anodizing and powder coating cover evenly and reduce denting during handling.
Heatsink
Heatsink profiles pull thermal load off inverters, amplifiers, LED drivers, and network hardware. Section 96005 runs a 0.90 mm wall at 0.399 kg per metre, and section 96001 carries 1.25 mm fins at 0.799 kg per metre, where continuous duty justifies the extra mass. Fin density is the whole point of the shape, and no other extruded section presents comparable surface area per kilogram. Section dimensions and geometry options are published on the Exalum product pages.
Conveyor Profile
Conveyor profile, listed as T-slot extrusion in many North American drawings, carries continuous slots for T-nut mounting along every working face. Section 70360 is a double-slot rail at 1.20 mm wall, 1.095 kg per metre, and section 70015 is the heavier double at 2.50 mm wall, 1.764 kg per metre. Guarding panels drop straight into the slots with gaskets, so an enclosure can be built and later changed without drilling the frame.
Unequal Channel
Unequal channel edges and retains panels while permitting movement on one axis, typically as track for partitions and cabinet doors. Section 31021 is compact at a 15.20 mm web and 9.10 mm flange in a 1.00 mm wall, 0.085 kg per metre. That small, deep geometry is the kind of shape sheet metal cannot fold to tolerance, but a die repeats it identically across the length and across every subsequent order.
Flat Bar
Flat bar serves as the general-purpose stock for straps, spacers, mounting plates, and structural reinforcement. Section 10046 is 38.10 mm by 1.91 mm at 0.195 kg per metre; section 10051 is much stiffer at 31.78 mm by 6.00 mm, 0.516 kg per metre. Orientation carries real consequence here, because standing a bar on its narrow edge raises bending resistance far beyond what the same bar offers lying flat.
Equal Angle
Equal angle reinforces 90-degree junctions in framing, guarding, and edge protection. Section 20045 has a 19 mm leg at 0.80 mm wall, 0.081 kg per metre, while section 20046 keeps the same leg at 1.20 mm wall, 0.120 kg per metre. That 0.40 mm difference is a separate die, and across a container it lets an importer pay for load capacity actually needed instead of freight on surplus wall thickness.
Standard sections continue to win export orders because the tooling is already amortised, lead times are shorter than custom development allows, and dimensions repeat without drift. The right choice depends on load path, fabrication method, and the finish the end application demands.
Requesting a Quotation
Exalum Metal supplies standard and custom aluminum extrusion profiles in production quantities from Indonesia to the United States, the United Kingdom, Australia, Canada, and other industrial markets. Send your profile drawing or section number, required cut lengths, estimated order volume, and finishing specification such as anodizing or powder coating to [email protected] or WhatsApp +62 811 9429 970. Custom die development is available for non-standard profiles.
