Horizontal and vertical bends of cable trays

Horizontal bends redirect the tray along a flat plane, while vertical bends allow the tray to change elevation; both can be made on-site using cutting and bending techniques with proper tools and reinforcement.

Horizontal Bends

Purpose: Horizontal bends change the direction of the cable tray along a horizontal plane, typically to navigate corners or follow room layouts. Typical Angles: 30° to 90°, depending on space and cable routing requirements. Process: Mark the Bend Points: Measure and mark the tray where the bend is required.

Tools like a cable tray offset calculator can help determine precise points and sloped section lengths. Cut the Mesh: For wire mesh trays, cut the mesh at precise points to allow smooth bending. Use a bolt cutter or angular blade cutter for clean cuts.

Bend the Tray: Apply force gradually to bend the tray along the horizontal plane. Reinforce the bend points if the angle is sharp to maintain structural integrity. Check for Smoothness: Ensure the bend is smooth to prevent cable damage during installation.

Vertical Bends

Purpose: Vertical bends allow the tray to transition between different elevations, such as from floor to ceiling or between floors. Typical Angles: Usually 30° to 90°, depending on the required elevation change. Process: Mark the Elevation Change: Determine the start and end points of the vertical bend.

Cut the Tray: Similar to horizontal bends, cut the mesh or tray at designated points to facilitate bending. Bend Upward or Downward: Gradually bend the tray along the vertical plane, ensuring a smooth transition to minimize stress on cables. Reinforce and Inspect: Reinforce the bend if necessary and check for sharp edges that could damage cables.

Tools and Tips

Bolt Cutters or Angular Blade Cutters: Essential for cutting wire mesh trays cleanly without damaging protective coatings. Bending Machines or Metal Bars: For steel trays, a bending machine or a sturdy metal bar can help achieve precise bends. Reinforcement: Add support at sharp bends to maintain tray strength and prevent sagging.

Safety: Always wear gloves and eye protection when cutting or bending trays. By following these steps, you can create both horizontal and vertical bends on-site, ensuring a safe, smooth, and structurally sound cable tray installation.