Understanding Ladder-Type Cable Tray Thickness
The thickness of a 600×200 ladder-type cable tray directly impacts its load-bearing capacity and service life. Common thicknesses range from 1.0 mm to 2.5 mm; specific selection should consider the following factors:
Single-side rail structure: Suitable for light-load applications; recommended thickness is 1.0–1.5 mm.
Double-side rail structure: Offers 30% higher load-bearing capacity; recommended thickness is 1.5–2.0 mm.
Special environments: For areas with high humidity or significant temperature fluctuations, increasing the thickness by 0.2–0.5 mm is recommended.
Comparison of Single-Side and Double-Side Rail Structures
Each structure has distinct characteristics:
Single-side rail tray: Easy to install, lower cost, suitable for short-distance cabling.
Double-side rail tray: Superior stability, with 40% greater resistance to bending.
Hybrid application: Use double-side rail trays for main lines and single-side rail trays for branch lines.
Practical Recommendations for Thickness Selection
Consider the following factors in actual applications:
Cable weight: Increase thickness by 0.1 mm for every additional 10 kg/m of load.
Span length: Thicker specifications are recommended for spans exceeding 3 meters.
Ambient temperature: Special consideration for thermal expansion and contraction is required if the temperature difference exceeds 50°C.
