Cable tray bends greater than 90 degrees

Cable tray bends exceeding 90° are typically achieved using adjustable bends, segmented fittings, or on-site modifications of wire mesh trays.

Standard Bends and Limitations

Most pre-manufactured cable tray bends are available in 45° and 90° angles for light, medium, and heavy-duty trays, with adjustable bends offering configurations up to 90° . These standard fittings are suitable for most routing needs but do not directly provide angles greater than 90°.

Achieving Angles Greater Than 90°

1. Adjustable Bends: Some medium and heavy-duty trays allow adjustable bends that can be set between 30° and 90° . By combining multiple adjustable segments, installers can approximate angles greater than 90°.
2. Segmented Fittings: For rigid trays, creating a larger bend often involves using multiple 45° or 90° segments in series. For example, two 90° elbows can be arranged to form a 180° turn, or three 45° segments can approximate a 135° bend .
3. Wire Mesh Tray Modifications: Wire mesh trays are highly flexible and can be bent on-site using bolt cutters or hand tools to achieve custom angles, including those exceeding 90° . Protective caps or coatings maintain safety and corrosion resistance after cutting.
4. Custom Fabrication: In industrial or complex installations, vertical or horizontal bends can be custom-fabricated to meet specific routing requirements, often using screw-connected fittings or welded sections .

Practical Considerations

• Ensure that the bend radius is sufficient to prevent cable damage or excessive stress. Sharp bends can compromise cable integrity.
• For wire mesh trays, maintain structural support after bending to prevent sagging or deformation.
• When combining multiple segments, verify that alignment and support brackets are properly installed to maintain tray stability. By using these methods, installers can achieve angles greater than 90° while maintaining safety, structural integrity, and compliance with cable management standards.