What Is an Aluminum Cable Tray?
An aluminum cable tray is a cable-support system extruded from aluminum alloy profile rather than roll-formed or welded from carbon steel or pultruded from glass-fiber-reinforced plastic (FRP/GRP) — the three material families used for cable tray industry-wide. Steel tray relies on a zinc-plated or hot-dip galvanized finish for corrosion resistance and carries the most weight per meter of the three; FRP tray is fully non-conductive and inherently corrosion-proof but has the lowest mechanical strength and can degrade under prolonged UV exposure; aluminum tray sits between the two. Wandtung's Aluminum Alloy Cable Ladder is built from 6063-T5 aluminum alloy extrusion with anodized surface treatment, giving it roughly a third of the weight of an equivalent steel ladder tray and a rated tensile strength of ≥160MPa, while its precision T-slot connection system assembles with M8 anti-corrosion bolts — no welding required — for fast, modular installation.
Why Data Centers and Solar Sites Choose Aluminum Cable Tray
Weight and corrosion resistance are the two properties that matter most in data center and solar installations. Overhead or under a raised floor in a cabinet row, every kilogram of tray is dead load competing with the room's structural and containment budget — a tray that weighs a third of the equivalent steel section is easier for a two-person crew to lift and position, and reduces the load the building structure has to carry. In outdoor and rooftop solar installations, tray is exposed to rain, humidity and, in coastal sites, salt-laden air; anodized aluminum resists corrosion without depending on a galvanized coating that can be scratched during transport or installation. Aluminum is also non-magnetic, which is why some EMI-sensitive cabling runs specify it directly over steel.
From Extrusion to Finished Tray: How It's Made
Aluminum cable tray starts as round aluminum billet, which is heated and pushed through a custom die under high pressure — extrusion — to form the tray's structural profile (side rail and rung) in one continuous cross-section. The extrusion is aged to T5 temper to reach its rated strength, then cut to length and finished with anodizing, which builds a hard, corrosion-resistant oxide layer into the aluminum surface rather than adding a separate coating. Sections assemble on site through the T-slot connection system and M8 anti-corrosion bolts, without on-site welding. You can see this production line, along with the finished tray and assembly detail, on the Aluminum Alloy Cable Ladder product page.
Aluminum Billet
Extrusion
T5 Aging
Cutting
Anodizing
Finished Tray
Simplified aluminum cable tray production flow — from billet extrusion through T5 aging, cutting and anodizing to the finished, ready-to-ship tray.
Customization: Sizes, Finishes and OEM/ODM
Because Wandtung's aluminum cable tray is produced in-house rather than sourced through a trading intermediary, width, rung spacing, finish and OEM/ODM branding are configured per order rather than limited to a fixed catalog. Available customization covers tray width, rung spacing, surface finish, and OEM/ODM packaging for buyers reselling under their own brand. Certification is confirmed per project — if a specific standard (CE, UL or similar) is required for your order, confirm it with our team when requesting a quote, since coverage is set per project spec rather than assumed from our other cable tray lines.
How to Choose the Right Aluminum Cable Tray
Selecting an aluminum cable tray comes down to matching three things to the installation: load, span and environment. Load capacity should be checked against the actual cable fill weight per meter, including growth margin, against the manufacturer's rated tensile strength and load-span data for the specific profile — not assumed from a steel-tray reference, since a lighter-weight material can call for closer support spacing to carry the same load. Span is set by the support and hanger spacing the site allows; reducing support spacing is usually simpler than stepping up to a heavier profile. Environment points toward finish and material: anodized aluminum for outdoor, coastal or corrosive sites where corrosion resistance and low weight both matter, and zinc-plated or hot-dip galvanized steel tray — such as Wandtung's Ladder Cable Tray — where maximum load capacity per profile matters more than weight.
Factory-Direct Supply From Wandtung
Wandtung is a factory-direct manufacturer of data center infrastructure and critical power products, and our aluminum cable tray is produced from an in-house aluminum processing base rather than through a trading intermediary — the same manufacturing capability that supports mounting structures and enclosures across our product range. That direct production means custom widths, non-standard lengths and specific finishes are a production scheduling conversation with our own team, not a quoting round-trip through a third-party mill. Combined with Wandtung's cabinet, PDU and power distribution lines, a project sourcing aluminum cable tray alongside its cabinets and power equipment can consolidate procurement with one factory-direct supplier. To get a quote for a specific project, reach out through the form below with your required width, span and finish, and our engineering team will confirm load-span data, certification options and lead time.