Most solar structures utilize cold roll-formed galvanized steel (GI, CR, or HR) purlins due to their corrosion resistance and high yield strength — typically between 240 MPa and 350 MPa. These materials provide longevity, crucial for solar systems expected to perform efficiently. Among the critical components of these structures are purlins, which play a vital role in ensuring strength and efficiency. What Are Purlins? Purlins are horizontal structural members that provide support to solar panels within a mounting system. Mounting systems allow for solar pane nergy sources to produce electricity in a thermodynamic c t Roll Forming Machine Basic working principle and components. In solar mounting systems, they serve a dual purpose: maintaining the structural integrity of the module layout and. Thereby we have to introduce some solar panel support with Z profiles and purlins brackets, which are hot galvanized steel material for use in long time with better surface and the best cost during the system construction. However, the construction of PV power plants in desert regions suffers from extreme temperature differences, strong winds, and difficulty in construction, while traditional photovoltaic support materials, su h as.