The aluminum cable tray is a lightweight, durable, and cost-effective solution used for organizing and safely carrying electrical and data cables. Why Choose Aluminum Alloy Cable Trays? 1. Lightweight and High Strength 2. Superior Corrosion Resistance 3. It routes, supports and protects power, data and control cables across ceilings, walls or under desks. Open, ventilated design dissipates heat, reduces electromagnetic interference and. Aluminum alloy cable tray is made of aluminum alloy through extrusion molding.