Zinc-aluminum-magnesium trough cable tray (including matching cover plate)

I. Product Overview

Zinc-aluminum-magnesium trough cable trays are enclosed metal cable ducts, composed of U-shaped trough body + matching cover plate. The cover plate is directly buckled onto the trough body to form a closed cavity, used for centralized laying of power cables, control cables, and weak current communication cables. Zinc-aluminum-magnesium is a new generation of alloy coating material, containing three elements: zinc, aluminum, and magnesium. Compared with traditional hot-dip galvanizing and electro-galvanizing, its corrosion resistance is greatly improved, making it a popular choice for factories, outdoor projects, and chemical environments.

II. Structural Composition

1. Trough body (main body of the tray): Formed by U-shaped bending in one piece, with reinforcing curled edges on both sides to enhance structural strength and prevent deformation; splicing notches are reserved at the ends, facilitating connection with accessories such as straight sections, elbows, and tees using connecting plates and bolts. The interior of the trough body is smooth, so it will not scratch the cable sheath.
2. Matching cover plate: Made of zinc-aluminum-magnesium flat plate of the same material, with folded edges on the sides, which fits tightly when buckled onto the trough opening. Functions: Dustproof, prevents debris from falling, protects cables, and prevents personnel from accidentally touching live lines, providing safety protection; simple to disassemble and assemble, can be directly lifted for maintenance.

III. Core Advantages of Zinc-Aluminum-Magnesium Material

✅Superior Corrosion and Rust Resistance: The zinc-aluminum-magnesium alloy coating has self-healing ability. At the cut or scratched positions of the plate, the coating will form a passivation protective film to block the spread of corrosion; its corrosion resistance lifespan is about 2 to 3 times that of ordinary hot-dip galvanized products, suitable for coastal humid, acid-base, and outdoor environments. ✅Appearance and Texture: The surface has uniform snowflake-like crystal patterns, with an aesthetic appearance. No additional painting is required, and the coating has strong adhesion, making it not easy to peel off. ✅Excellent Mechanical Properties: The base material is cold-rolled steel plate, with stable bending forming and strong load-bearing capacity; the coating has high hardness, so it is not easy to be scratched during handling and installation. ✅Environmental Protection and Low Maintenance: The coating is stable, so no anti-rust paint is needed in the later stage, greatly reducing the later maintenance cost of the project.

IV. Applicable Scenarios

• Power cable wiring in industrial factories and workshops
• Cable laying in outdoor pipe corridors and exposed roof areas
• Strong and weak current engineering in underground garages, integrated pipe corridors, and computer rooms
• Projects in coastal high-salt-spray and slightly corrosive environments
• Power distribution wiring in shopping malls, office buildings, and new energy projects

It is not recommended for highly corrosive working conditions (such as environments with continuous strong acid and alkali immersion); stainless steel trays are recommended for such scenarios.

V. Product Specifications and Technology

1. Common specifications (width × height, mm): 200×100, 150×75, 100×50, 300×100, etc. Non-standard custom widths and heights are supported.
2. Plate thickness: The thickness of the trough body and cover plate can be customized as required, with a conventional range of 0.8mm to 2.0mm. The thicker the thickness, the stronger the load-bearing capacity.
3. Standard length: Conventional length is 2 meters per piece, and 3 meters can also be customized.
4. Accessory matching: A full set of accessories such as connecting plates, bolts and nuts, elbows, tees, reducers, end caps, and hanging bracket supports can be supplied together.

VI. Installation Features

1. Enclosed structure, with cables fully enclosed, reducing signal interference when strong and weak currents are wired in the same space;
2. Buckle-type cover plate design, which is fast in construction and convenient for adding cables and maintenance in the later stage;
3. Light in weight, with small load required for matching supports and hangers, reducing the load-bearing pressure on ceilings and pipe corridors.

VII. Comparison Reference

• Compared with electro-galvanized products: Zinc-aluminum-magnesium has much stronger corrosion resistance. Electro-galvanized products are not suitable for humid environments, while zinc-aluminum-magnesium can be used outdoors;
• Compared with ordinary hot-dip galvanized products: The zinc-aluminum-magnesium coating is thinner, with a more beautiful appearance, has cut self-healing ability, and has a better cost performance under the same corrosion resistance level;
• Compared with powder-coated trays: The zinc-aluminum-magnesium coating is less prone to peeling and damage, and performs better than powder coating in outdoor sun-exposed environments.