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Materials of CT and MR cable trays

Fibre interconnection and data room reference Published 03 May 2026

Use this reference to prepare product questions for FD SOLUCIONES. Check interfaces, capacity, protection and installation requirements against the current product documentation.

CT cable trays are typically made from hot-dip galvanized steel, while MR (mesh) cable trays are constructed from electro-welded steel wire, often with protective coatings for corrosion resistance.

CT Cable Trays

Construction Materials: CT (perforated or solid-bottom) cable trays are commonly manufactured from hot-dip galvanized steel, which provides excellent corrosion resistance for both indoor and outdoor applications. Some variants use Sendzimir galvanized steel, which includes a zinc coating with small amounts of magnesium and/or aluminum to enhance protection and self-healing properties against scratches and rust. These materials ensure long service life, structural rigidity, and compliance with industrial standards.

Finishes and Coatings: Hot-dip galvanization: Provides a thick, uniform zinc layer for corrosion protection.

ULTRA GALV

A coating: A zinc-magnesium-aluminum alloy that offers superior passivation and self-healing properties. Powder coating or epoxy finishes: Sometimes applied for additional chemical or environmental resistance.

M

R (Mesh or Wire Mesh) Cable TraysConstruction Materials: MR cable trays, also known as wire mesh trays, are typically made from electro-welded steel wires, forming a mesh structure that allows ventilation and heat dissipation for cables. The steel used can be carbon steel or stainless steel, depending on environmental requirements. Finishes and Protective Measures: Electro-galvanized or hot-dip galvanized finishes: Protect against corrosion and extend service life.

Safe-T-Curl edges: Designed to protect cables and installers during handling and installation. Optional coatings: Powder coating or epoxy may be applied for chemical resistance or aesthetic purposes.

Summary

Tray TypeMaterialFinish/CoatingKey FeaturesCT (Perforated/Standard)Hot-dip galvanized steel, Sendzimir steelHot-dip galvanization, ULTRA GALVA, powder coatingHigh corrosion resistance, structural rigidity, suitable for indoor/outdoorMR (Wire Mesh)Electro-welded steel wire, carbon or stainless steelElectro-galvanized, hot-dip galvanized, optional powder coatingVentilated design, Safe-T-Curl edges, flexible for bends and fittingsBoth CT and MR cable trays are engineered to meet mechanical and electrical safety standards, ensuring durability, cable protection, and compliance with industrial and national regulations.

Materials of CT and MR cable trays - FD SOLUCIONES OPTICAL SYSTEMS [PDF]

Materials of CT and MR cable trays
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Technical note

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