Cable tray manufacturing relies on a coordinated production line of specialized machines: a roll forming line shapes the profile, a CNC press brake handles secondary bending, a punch press creates mounting holes and ventilation slots, and a shearing line cuts the finished tray to. Cable tray manufacturing relies on a coordinated production line of specialized machines: a roll forming line shapes the profile, a CNC press brake handles secondary bending, a punch press creates mounting holes and ventilation slots, and a shearing line cuts the finished tray to. Cable tray manufacturing involves creating trays that are designed to hold, support, and protect electrical cables in various environments. Cable trays are crucial for organizing cables, keeping them safe from physical damage, and ensuring their proper functioning over time. Understanding the. Alfazal Engineering specializes in the manufacture and installation of high-quality aluminum cable tray. In fact, modern cable tray manufacturing standards cover everything from raw materials to end product testing, the foundation of reliable. The production process of cable trays, from design to finished product, usually includes the following key steps: Design and Planning Stage The production process of cable trays starts from design.