Cable tray cover flexible elbow cutting method

Flexible cable tray elbows can be cut and shaped on-site using band saws or angle grinders with proper safety precautions, ensuring clean edges and maintaining structural integrity.

Tools and Equipment

For cutting flexible cable tray elbows, the recommended tools include: Band saws with blades suitable for the tray material, which provide accurate cuts with minimal burrs and debris. Angle grinders for situations where band saws are impractical, offering flexibility but requiring careful handling to avoid splatter and overheating. Kevlar gloves, eye protection, and PPE to prevent injuries from sharp edges or flying particles.

Cutting Procedure

Measure and Mark: Determine the required length or angle for the elbow and mark the cut line clearly. Support the Tray: Secure the tray firmly to prevent movement, which can cause chipping or uneven cuts. Cutting: Use a band saw for precise, low-noise cuts.

If using an angle grinder, operate with both hands, maintain steady pressure, and avoid overheating the material. Edge Finishing: After cutting, inspect edges for burrs. Smooth sharp edges to prevent cable damage and ensure safety during installation.

Best Practices

Cut between pre-existing holes when possible to maintain torsional strength and reduce sharp edges. Avoid mixing blades between different metals to prevent galvanic corrosion and material contamination. Do not use torches for cutting, as heat can weaken the tray and damage surface treatments.

For FR

P (fiberglass) trays, cut in 300 mm steps for optimal strength and avoid excessive heat to prevent resin burning.

Flextray-

Specific Notes

The Flextray system allows field-adaptable cutting and bending. It features a “T” weld safety edge to protect both cables and installers. When cutting Flextray: Use UL-classified splices to reconnect sections if needed.

Run a ground wire alongside the tray and attach it at each cut to maintain grounding integrity. By following these methods, flexible cable tray elbows can be safely and accurately cut on-site, ensuring proper fit, structural integrity, and compliance with safety standards.