A solid-bottom tray provides the maximum protection to cables, but requires cutting the tray or using fittings to enter or exit cables. A deep, solid enclosure for cables is called a cable channel or cable trough. Cable channel have excellent protection for cables, but lack of heat dissipation.

     Ventilated tray is widely used in the fields of petroleum, chemical production, telecommunication, etc. Excellent heat dissipation, light weight, heavy loaded and easy to install are the most exceptional property for ventilated tray.