Huijue cable tray elbows can be created either by metal fabrication techniques for physical trays or by using CAD software like AutoCAD/TrayCAD for digital designs.

Physical Fabrication of Cable Tray Elbows

To make a 90° or 45° elbow in a cable tray:

1. Tools and Materials: Straight cable tray section, cutting tools (angle grinder or hacksaw), measuring tape, marker, set square or protractor, drill, bolts, nuts, washers, and cold galvanizing spray for rust protection .
2. Mark the Center Line: Determine the bend location and draw a line across the tray base.
3. Mark 45° Cuts: Measure equal distances on both sides of the center line to create two 45° cuts for a 90° elbow.
4. Cut Side Channels: Cut the tray flanges at 45° angles, stopping at the base.
5. V-Notch the Base: Remove V-shaped sections to allow the sides to close together.
6. Bend the Tray: Fold the tray at the center to form the elbow; the cut sides should meet perfectly.
7. Secure the Joint: Drill holes and fasten with bolts; use connecting plates for larger trays.
8. Finish: Apply cold galvanizing spray to exposed metal to prevent rust . You can also follow video tutorials for step-by-step guidance on professional fabrication techniques .

Digital Creation in CAD Software

For designing elbows in software like Revit or AutoCAD:

1. Revit Method:
   • Open the family editor and create a new Cable Tray Fitting family.
   • Set the Part Type to 'Channel Vertical Elbow' and replace duct connectors with cable tray connectors.
   • Adjust parameters and angles to allow the elbow to adopt the routing path of the tray .
   • For 45° elbows, use two segments; for 90° elbows, use three segments .
2. TrayCAD Method:
   • Install B-Line cable tray product data and open AutoCAD with TrayCAD.
   • Use the Explorer to select parts and drag them into the model space.
   • TrayCAD proposes horizontal bends for several angles; adjust the length or angle as needed and place the elbow fitting .

Tips and Considerations

• Always measure accurately and ensure cuts are precise to avoid misalignment.
• For larger trays, reinforce elbows with additional bracing.
• In CAD, use sweeps and reference lines instead of simple extrusions to prevent geometry errors .
• Safety is critical during fabrication: wear gloves, goggles, and follow proper metalworking precautions . By combining these fabrication and CAD techniques, you can generate Huijue cable tray elbows suitable for both real-world installations and digital planning.