Dimensions of 90-degree vertical bends in cable trays

90-degree vertical cable tray bends typically vary in side rail height, width, and bend radius depending on material and application, with common examples ranging from 5–6 inches in height, 9–30 inches in width, and 12–24 inches radius.

Typical Dimensions

Inside Vertical Bends:

• Aluminum H-style tray: 5 inches side rail height, 30 inches width, 12 inches bend radius .
• Pre-galvanized steel tray: 6 inches side rail height, 9 inches width, 24 inches bend radius . Outside Vertical Bends (External Riser Bends):
• Perforated galvanized steel tray: 150 mm (approx. 5.9 inches) side rail height, 1100 mm (approx. 43.3 inches) width, designed for changing elevation from upper to lower levels .

Material and Construction Considerations

• Aluminum trays are lightweight and corrosion-resistant, suitable for indoor or less demanding environments .
• Galvanized steel trays provide higher mechanical strength and corrosion resistance, ideal for heavy-duty or industrial applications .
• Perforated trays allow ventilation and heat dissipation, reducing the risk of cable overheating .

Installation Notes

• The bend radius affects cable bending stress; larger radii reduce strain on cables.
• Side rail height and width must match the straight tray sections to ensure smooth cable routing.
• Vertical bends can be inside or outside depending on whether the tray changes direction inward or outward relative to the original path. These dimensions provide a reference for selecting or designing 90-degree vertical bends in cable tray systems, ensuring proper fit, mechanical support, and cable protection in industrial or commercial installations .