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Aluminium solar mounting rails: what to specify

Updated 2026-11-03

Most aluminium PV mounting rails are extruded in 6005-T5 (or 6063-T5/T6 for lighter duty) and anodised for outdoor life; an anodic layer of around 10–15 µm is commonly specified for exposed rails. The structural design and certification of the mounting system belong to the system brand under local wind and snow codes; the extruder supplies the rail section, alloy, temper and finish to the drawing, with material certificates.

ItemTypical specification
Alloy / temper6005-T5 for spans; 6063-T5/T6 for light duty
FinishClear anodized, about 10–15 µm, or mill finish
LengthsStandard lengths or cut to size; punched slots
AccessoriesMid/end clamps, L-feet, splices, bolts
PackingBundled per length or packed per kit

What to put on the drawing

Section, alloy and temper, finish and thickness, length, punching positions and tolerances. Add the packing you need for your installers.

Corrosion

Keep aluminium separated from copper and use stainless or coated fasteners to avoid galvanic corrosion, especially near the coast.

Questions

Can you match an existing rail profile?

Yes, from your drawing or a sample section; a die is made for your design.

Do you supply clamps and fasteners?

Profiles are our core product; accessories can be quoted with the rails.

Custom extrusion → · Request a quote →

Send a drawing. Get a quotation.

Profile, alloy, finish and quantity. Attach a DWG, DXF, PDF or photo of a sample.

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