Constructing continuous bends in cable trays

Continuous bends in cable trays can be achieved using manual bending techniques, specialized bending machines, or flexible mesh tray systems that allow on-site shaping without cutting.

Manual Bending Techniques

For steel or wire mesh cable trays, manual bending can be performed using simple tools such as a metal bar, pliers, or crimping tools. This method is suitable for creating internal 90° bends or gentle curves on-site when pre-fabricated bends are unavailable. The process involves marking the bend location, applying gradual force to shape the tray, and smoothing the bend to avoid sharp edges that could damage cables.

Safety gloves and proper measurement are essential to maintain accuracy and prevent injury.

Cable Tray Bending Machines

Cable tray bending machines provide a more precise and consistent method for creating bends. These machines allow operators to form horizontal, vertical, tee, and offset bends efficiently. They are particularly useful for steel trays where repeated bends are required, ensuring uniformity and reducing installation time.

Machines can handle multiple angles and radii, making them ideal for complex routing in industrial or data center environments.

Flexible Mesh Tray Systems

Products like Cablobend EZ offer a modern solution for continuous bends without cutting. These systems use adjustable mesh trays that can be bent vertically or horizontally up to 90°, allowing installers to create custom bends and drops on-site. This method significantly reduces installation time, improves safety by eliminating cutting tools, and maintains structural integrity.

The trays come in various widths and heights, and pre-assembled sections can be connected with rigidity clips for added strength.

Step-by-

Step Considerations

Mark the bend location accurately using a measuring tape and marker. Select the appropriate method: manual, machine, or flexible system based on tray type and project scale. Apply gradual bending force to avoid kinks or deformation.

Check alignment and smoothness to ensure cables will not be damaged. Secure the tray with clips or fasteners to maintain the bend and structural stability.

Summary

Continuous bends in cable trays can be fabricated using manual tools for small adjustments, bending machines for precision and repeatability, or flexible mesh systems for rapid, on-site customization. Choosing the right method depends on the tray material, project complexity, and installation efficiency requirements.