Cable tray (Cable Tray Systems) are typically made from sheet metal. Many have slotted patterns, making it easy to mount accessories, secure cables, and attach other components such as pipe clamps. They are ideal for carrying electrical and instrumentation cables.
Solid-bottom designs help reduce electromagnetic interference, while perforations allow for drainage and ventilation. Cable trays also prevent sagging of cables, which could otherwise damage circuit performance.
In addition to their functional advantages, cable trays provide a cleaner visual appearance and are particularly suitable for open-ceiling environments where cable concealment is desired.
To protect them from UV radiation, snow/ice, and vandalism, they can be coated or manufactured using corrosion-resistant metals. Standard lengths are typically 2 meters or 3 meters, and common materials include low-carbon steel, stainless steel, aluminum alloys, or steel with corrosion-resistant coatings (zinc or epoxy).
Main Types of Cable Trays :
Steel Cable Trays – Made from high-strength structural steel using continuous roll-forming processes for enhanced mechanical durability.
Stainless Steel Cable Trays – Highly resistant to moisture, bending, and high temperatures.
Aluminium Cable Trays – Manufactured from extruded aluminum, offering excellent corrosion resistance, a high strength-to-weight ratio, and ease of installation.
Galvanized Cable Trays and Their Variants :
The most common protective coating for cable trays is galvanization, which is cost-effective and provides excellent resistance to a wide range of environmental chemicals.
Three main galvanization methods include :
Electro-Galvanized (Cold Dip) :
Steel trays are coated with zinc via an electrolysis process. Corrosion resistance depends on coating thickness and environmental conditions.
Mill-Galvanized (Pre-Galvanized) :
Steel coils are passed through molten zinc before fabrication.
Hot-Dip Galvanized :
After fabrication, trays are fully immersed in molten zinc, coating all surfaces, edges, perforations, and weld points. This creates a thicker, more durable coating, making it the preferred choice for outdoor and industrial applications.
Cable Tray Bending :
At this stage, the tray sheet is bent by a bending machine according to the client’s request and order and the appropriate bending angle
After determining sheet thickness, trays are bent to specification using NC bending machines. These machines can produce two-bend, four-bend, or six-bend trays:
Four-Bend Trays :
One of the types of cable trays is four-bend cable trays. In the bending of four-bend cable trays, there are two main bends and two bends at the end of the tray sheet, so that the desired cable tray can be produced in this way.
Six-Bend Trays :
The difference between four-bend and six-bend cable trays is that in six-bend trays, the end part is bent twice. Increasing the number of bends in the trays prevents the ends of the trays from hitting wires and cables and increases the life of wires and cables
Factors to Consider When Selecting Cable Trays :
1 _ Cable Type :
Different cables (power or data) require varying widths, bends, and thicknesses. According to the type of wire and cable (electrical or data wire), you can order the desired tray.
2 _ Work Environment :
The type of wiring is also important in choosing cable trays. For example, industrial environments require trays with higher resistance.
3 _ Cable Load :
The volume and weight of cables determine the tray’s width and thickness requirements.
4 _ Pricing :
Cable tray prices depend on material type, thickness, bends, and width. Since Ader Tavan Nami is a direct manufacturer of electrical support systems, we can produce fully customized trays—tailored in size, material, and finish—at highly competitive prices.
