Cable tray bends up and down 90 degrees

90° cable tray bends allow for smooth directional changes in cable routing, available in horizontal, vertical, adjustable, and flat configurations for various tray widths and materials.

Types of 90° Cable Tray Bends

Horizontal Bends: These bends change the cable tray direction along the horizontal plane. They are available in fixed radii (e.g., 12", 24") and can accommodate different tray widths and heights. Common materials include pre-galvanized steel, aluminum, and stainless steel, often with included hardware for installation . Vertical Bends: Used to change the tray direction vertically, either upward or downward. Adjustable vertical bends allow for precise alignment and can be connected via screw or plug systems . Flat Bends: Flat 90° bends are suitable for light, medium, and heavy-duty trays. They are available in widths from 50mm to 900mm and can include ventilated or closed covers. Adjustable flat bends allow intermediate angles (30°, 45°, 60°, 75°) up to 90° for flexible routing . Tee and Double-Bend Kits: Some kits provide hardware for one tee or two 90° bends, with slotted designs that fit multiple tray sizes and eliminate the need for precise alignment .

Design Considerations

Bend Radius: The bend radius should accommodate the cable type and diameter. For example, power cables typically require a minimum bend radius of 12 times the cable's outer diameter. Using a larger radius than the minimum ensures safe cable installation and prevents damage . Material and Finish: Options include pre-galvanized steel (PG), hot-dip galvanized steel (HDG), and stainless steel (316L). Selection depends on environmental conditions, load requirements, and corrosion resistance . Clearance and Arc Length: Calculating the centerline arc length, setback, and chord is important for proper installation. Bend calculators can help determine these dimensions based on tray width, bend radius, and cable size . Installation: Most 90° bends come with pre-drilled holes or plug connections for easy assembly. Adjustable bends allow fine-tuning during installation to align with existing tray runs .

Summary

90° cable tray bends are essential for routing cables efficiently in both horizontal and vertical planes. Choosing the correct type, radius, material, and installation method ensures compliance with cable bend requirements, maintains cable integrity, and provides flexibility for future modifications. Options include fixed, adjustable, flat, and kit-based bends suitable for a wide range of tray widths and cable types .