Assembly of cable tray elbows and accessories

Cable tray elbows are assembled by cutting, bending, and fastening tray sections to create smooth angled turns, typically using 45-degree cuts to form 90-degree elbows.

Tools and Materials Needed

• Straight cable tray sections
• Cutting tools (angle grinder with cutting disc or hacksaw)
• Measuring tape, marker, set square, or protractor
• Drill and drill bits
• Nuts, bolts, and washers for fastening
• Cold galvanizing spray or rust protection
• Personal protective equipment (gloves, safety glasses, hard hat)

Step-by-Step Assembly Process

1. Plan the Route Determine the path of the cable tray and mark the locations where elbows are required. Consider clearance, load capacity, and cable separation needs to ensure proper installation .
2. Mark the Center Line On the tray section where the bend will occur, draw a straight line across the center of the tray base to indicate the pivot point for the elbow .
3. Mark 45-Degree Cuts Measure equal distances on both sides of the center line (typically 45mm to 82mm depending on tray width) and mark the cuts. These two 45-degree cuts will form a 90-degree elbow when joined .
4. Cut the Side Channels Using an angle grinder or hacksaw, cut the tray flanges at the marked 45-degree angles, stopping at the base of the tray .
5. V-Notch the Base Remove V-shaped sections from the tray base at the bend location. This allows the sides to come together smoothly when forming the elbow .
6. Bend and Align Carefully bend the tray sections to form the elbow. Ensure the angle is precise and the edges align properly. Use clamps if necessary to hold the shape during assembly .
7. Fasten the Elbow Drill holes if needed and secure the elbow using nuts, bolts, and washers. Apply cold galvanizing spray to protect exposed metal from corrosion .
8. Install the Elbow in the Tray System Attach the assembled elbow to the main cable tray route using appropriate connectors and supports. Ensure the elbow is level and properly supported to prevent sagging or stress on the cables .

Tips for a Professional Finish

• Double-check measurements before cutting to avoid material waste.
• Smooth any sharp edges with a file to prevent cable damage.
• Maintain consistent support spacing (typically 1.5–3 meters) to ensure stability .
• For complex layouts, consider pre-fabricated elbows to save time and ensure accuracy. By following these steps, you can assemble cable tray elbows that are secure, precise, and compliant with electrical installation standards, ensuring safe and organized cable routing.