Aluminum does not outperform steel in every situation, and a realistic specification acknowledges that. Its modulus of elasticity is lower, so long-span beams carrying heavy loads often still call for steel sections to control deflection. Where aluminum wins is everywhere else in a manufacturing plant: frames, guarding, tracks, bases, and thermal components, all of which suit profiles from Indonesia extruded aluminum manufactures far better than fabricated steel. The metal weighs about a third as much, forms its own corrosion-resistant layer, and leaves the extrusion press with the cross-section already complete.
PT Exalum Metal Indo extrudes at Tangerang, Indonesia, supplying industrial and architectural buyers across domestic and export markets. The catalog of Exalummetal industrial aluminum products is built on section numbers, each a fixed profile that repeats identically on reorder, so an assembly designed around one section stays buildable for years.
Six profiles cover most manufacturing requirements.
1. Rectangular Hollow
Rectangular hollow section resists torsional load across its enclosed area, which open profiles cannot match, suiting machine frames, guarding, gates, and display structures. Section 45140 is 40 by 20 mm in a 1.20 mm wall at 0.380 kg per metre, and section 45145 is 40 by 25 mm in a 1.60 mm wall with a 0.70 mm radius, 0.534 kg per metre. Because stiffness scales with the cube of depth, reorienting the section usually beats moving up a wall thickness.
2. Conveyor Profile
Conveyor profile, or T-slot extrusion, is the modular structural rail behind most belt and roller conveyor frames. Section 70440 is a single-slot rail at 1.35 mm wall, 1.184 kg per metre, and section 70015 is a double-slot rail at 2.50 mm wall, 1.764 kg per metre. Side guide rails, sensor mounts, and polycarbonate guarding all attach through the same slots, so a line can be adjusted without cutting or welding the frame.
3. Heatsink
Heatsink profiles manage thermal load in inverters, transformers, LED housings, and server hardware. Section 96006 runs a 1.00 mm wall at 0.223 kg per metre for compact enclosures, and section 96002 is heavier at 1.20 mm wall, 1.021 kg per metre. Aluminum’s thermal conductivity is the reason this profile has no practical steel equivalent at comparable weight. Fin geometries and section dimensions are published on the Exalum product pages.
4. Flat Bar
Flat bar is the stock a plant consumes for machine bases, mounting plates, straps, and reinforcement. Section 10013 is 19.05 mm by 1.59 mm at 0.081 kg per metre, and section 10080 is 62 mm by 8 mm with a 1.00 mm radius, 1.342 kg per metre. The solid section drills, taps, and countersinks cleanly, with no thin wall to collapse under the tool, which is why it often replaces a hollow section where fastening is frequent.
5. Unequal Channel
Unequal channel retains panel edges while allowing travel on one axis, common as track for partitions, machine access doors, and glazed screens. Section 32032 is 25.40 mm across the web with a 12.70 mm flange in a 0.90 mm wall, 0.119 kg per metre. The taller flange takes fasteners behind the panel while the shorter keeps the visible edge slim, a split that two folded parts would otherwise have to cover.
6. Equal Angle
Equal angle braces corners and shields edges in rack framing, guarding, and panel assemblies. Section 20045 has a 19 mm leg at 0.80 mm wall, 0.081 kg per metre, and section 20043 is heavier at an 18 mm leg with a 2.00 mm wall, 0.184 kg per metre. Extruded from a single billet, the corner keeps consistent grain and a true radius rather than the residual stress a folded bend carries.
Standard profiles remain the efficient basis for manufacturing supply, with proven tooling, shorter lead times, and dimensions that hold across runs. Matching section, alloy, and finish to the duty at design stage avoids specifying around a problem later.
Requesting a Quotation
For aluminum extrusion profiles in production quantities, Exalum Metal supplies volume orders 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 sections.