List of methods for cutting cable tray bends

Cable tray bends can be cut safely and accurately using band saws, circular saws, angle grinders, or bolt cutters, depending on the tray type and material.

Recommended Cutting Tools

• Band Saws: Ideal for low-height, thin metal trays and ladders. They provide accurate cuts with low noise and minimal debris. Ensure the blade is suitable for the material thickness and wear appropriate PPE, including Kevlar gloves, eye, head, and footwear protection (Oglaend System) .
• Circular Saws: Suitable for light channels, cable trays, and ladders. Cordless models like the Hilti SCM 22-A offer precision, chip collection, and safety features such as blade guards and rapid blade brakes .
• Angle Grinders: Offer flexibility for cutting thicker or irregular sections but produce more splatter and require careful handling with both hands. Protect surrounding materials from sparks and avoid overheating .
• Bolt Cutters: Effective for wire mesh cable trays, allowing live cuts on-site. The jaws form a protective zinc layer on the cut ends, maintaining corrosion resistance .

Cutting Techniques for Bends

• Multiple Cuts for 90° Bends: For standard metal trays, bends can be created by making two or three precise cuts along the tray edges, then bending the section to the desired angle. Use a marker, measuring tape, and right-angle tools to ensure accuracy .
• On-Site Fabrication: Wire mesh trays can be bent, reduced, or joined directly on-site using bolt cutters and rubber caps to protect cut ends, allowing quick assembly without pre-fabrication .
• Avoiding Material Damage: Do not use torches for cutting, as heat can weaken the tray and damage surface treatments. Avoid mixing cutting blades between stainless steel and carbon steel to prevent galvanic corrosion .

Safety Considerations

• Always wear Kevlar gloves, eye protection, headgear, and appropriate footwear.
• Protect surrounding materials from sparks and debris.
• Remove burrs after cutting to prevent injuries and ensure proper fit during assembly.
• Follow local and national HSE regulations for on-site cutting operations . By selecting the appropriate tool and following these techniques, cable tray bends can be cut efficiently, safely, and with minimal impact on material integrity.