Cable tray bends can be created using specialized bending tools, manual techniques with bars, or on-site cutting and shaping, depending on the tray type and installation requirements.

Bending Steel or Ladder Cable Trays

For steel or ladder-type cable trays, bends can be achieved using either a cable tray bending machine or manual methods:

• Cable Tray Bending Machine: This is the most precise method, allowing for clean 90° or custom-angle bends without damaging the tray structure .
• Manual Bar Technique: In situations where a bending machine is unavailable, a sturdy metal bar can be used to gradually lift and twist the tray into the desired angle. This method requires careful handling to avoid kinks or deformation .
• Crimping Method: Some installers use a crimping tool to create internal bends, especially for tight spaces, ensuring the tray maintains structural integrity .

Bending Wire Mesh Cable Trays

For wire mesh or basket-type trays, bends, tees, and crosses can be made directly on-site using simple tools:

• Bolt Cutter Method: Cutting specific wires with a bolt cutter allows the tray to be bent at the desired angle. The cut edges are naturally protected by the zinc coating, and rubber caps can be added for extra safety .
• On-Site Shaping: Wire mesh trays are flexible enough to be twisted or bent manually after selective cuts, making them adaptable for complex routing without specialized machinery .

General Tips

• Always measure and mark the bend location before applying force.
• Gradual bending reduces the risk of cracking or deforming the tray.
• Use protective gloves and eye protection when cutting or bending metal trays.
• For professional installations, consider pre-fabricated bends or fittings to save time and ensure compliance with electrical codes . By selecting the appropriate method based on tray type and available tools, installers can achieve precise bends while maintaining the structural integrity and safety of the cable tray system.