How to fix large cable tray cover plates

Cable tray cover plates can be securely fixed using pressing plates, screws, buckles, padlocks, or seven-shaped clips depending on installation type and environment.

Common Fixing Methods

1. Pressing Plate Fixing Punch holes in the cover plate, place a pressing plate over it, and secure with screws. This method works for both horizontal and vertical installations and provides a stable hold .
2. Screw Fastening Punch holes in the cover plate and use rotating screw plates to attach the cover to the tray. Suitable for horizontal or vertical setups, this method ensures a strong, permanent connection .
3. Buckle Fixing Bend folds at both ends of the buckle to secure the cover without punching holes. Best for horizontal installations, as vertical setups may allow the cover to slip .
4. Padlock Fixing Weld a padlock hook to the cover and a padlock body to the tray, then lock them together. This method is extremely strong, ideal for outdoor or windy environments, and works for both horizontal and vertical installations .
5. Seven-Shaped Clip or Buckle Punch holes in the tray, insert the lower end of the seven-shaped clip, and tighten the upper end on the cover with screws. Provides a secure hold and is reusable, often made from 304 stainless steel for corrosion resistance .

Choosing the Right Method

• Frequent Access: Use no-weld clips or rotating buckles for easy removal.
• Permanent Fix: Screws, riveting buckles, or seven-shaped clips provide long-term stability.
• Environmental Considerations: Stainless steel accessories are recommended for wet, corrosive, or outdoor conditions.
• Tray Size: Wider trays may require stronger clips or multiple fixing points to prevent sagging .

Installation Tips

• Ensure the cover plate aligns properly with the tray edges before fixing.
• Use appropriate tools such as screwdrivers, spanners, or torque wrenches for screw-based methods.
• For padlock or welded methods, ensure proper welding and alignment to avoid misfit.
• Check for vibration or wind exposure; stronger fixing methods may be necessary in such conditions . By selecting the appropriate fixing method and accessories, you can secure cable tray covers effectively, protecting cables from dust, debris, and mechanical damage while allowing for maintenance access when needed.