Cable tray corners can be made using adjustable corner pieces, live bending techniques, or pre-bent trunking, depending on the tray type and project requirements.

Using Adjustable Corner Pieces

For metal or modular cable trays, adjustable corner pieces like the SRS type can be inserted into the tray and secured with screws. These allow for angles from 0° to 75°, making them versatile for non-standard corner requirements. Simply push the corner piece inside the tray, align it to the desired angle, and tighten the screws to secure it in place .

Live Bending Wire Mesh Cable Trays

Wire mesh cable trays can be bent on-site using a bolt cutter. This method allows you to create bends, tees, crosses, and reducers without pre-fabricated parts. The bolt cutter cuts through the tray wires while forming a protective zinc layer on the cut ends. Rubber caps can be added to protect exposed edges. After cutting, carefully bend the tray to the desired angle, ensuring the cables will fit without obstruction .

Pre-Bent Trunking for Corners

For plastic or PVC trunking, pre-bent corner pieces or custom cuts can be used. Measure the path and mark the corner points accurately. Cut the trunking with a saw or cutter, smooth the edges with a file or sandpaper, and test-fit the pieces. Secure the trunking with screws or adhesive, insert the cables, and snap on the lid. Pre-bending the trunking can help fit tight corners, and grommets should be used where cables enter or exit to prevent wear .

90-Degree Bends

To make a 90-degree bend in a metal cable tray, mark the bend line, cut or score the tray if necessary, and carefully bend it using a bending tool or by hand with proper support. File any sharp edges to prevent cable damage and ensure a smooth installation .

Tips for a Professional Finish

• Measure twice, cut once to avoid errors.
• Do a dry fit before final installation.
• Avoid overfilling the tray to prevent overheating.
• Use protective caps or grommets on cut edges.
• Keep the installation neat for both safety and aesthetics . By following these methods, you can create custom corners for cable trays efficiently and safely, whether using adjustable pieces, live bending, or pre-bent trunking.