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Processing of Hole-less Channel Cable Trays

Processing of Hole-less Channel Cable Trays

Hole-less channel cable trays are fabricated from metal sheets or coils, formed into solid channels through cutting, bending, and welding, and installed on support structures according to industry standards.Material PreparationHole-less channel cable trays are typically made from galvanized steel, stainless steel, or aluminum sheets/coils depending on corrosion resistance requirements . The metal coils are first slit and trimmed to ensure smooth edges compatible with automated forming machines . Proper surface preparation is essential to prevent damage during forming and to maintain structural integrity.Forming and FabricationThe fabrication process involves several key steps:Cutting: Metal sheets or strips are cut to the required length for the tray sections .Bending: Using roll forming machines or press brakes, the metal is bent to create the channel shape with side flanges for strength .Welding: Joints, such as end connections or support bridges, are welded to ensure rigidity and load-bearing capacity .Edge Smoothing: All edges are smoothed to prevent injury and facilitate cable installation .Optional Embossing or Reinforcement: Some trays may include a center spine or embossed patterns to increase structural strength without perforations . Automated cable tray roll forming machines can produce hole-less channels efficiently, guiding the metal through progressive dies to bend, cut, and shape the tray to precise dimensions . Semi-automatic or customized machines allow flexibility for different tray widths and thicknesses.InstallationHole-less channel trays are installed on MS support structures or wall-mounted brackets. Key steps include:Fabricating supports from MS angles or C-channels and welding or bolting them at regular intervals .Securing the tray sections with high-tensile bolts, washers, and coupler plates to maintain alignment and structural integrity .Ensuring proper spacing and isolation to prevent electrical hazards and comply with standards .Standards and ComplianceHole-less channel cable trays must conform to NEMA VE-1, ANSI/NFPA 70, and IEC standards for metallic cable tray systems . Compliance ensures mechanical strength, safe cable routing, and compatibility with electrical codes.SummaryThe processing of hole-less channel cable trays involves material preparation, precise forming, welding, and installation on support structures, all while adhering to industry standards. Automated roll forming machines enhance efficiency and consistency, making them suitable for large-scale production of solid channel trays for industrial and commercial applications .

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Watch how precision tools transform raw metal into durable, functional channels that keep wiring neat and secure in buildings or machinery.

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