The maximum length of standard solar panel purlin is 6 meters, and it can be customized up to 12 meters (segmented splicing is required, with an error of ≤ 0. 02mm/m) You can flexibly customize the thickness of solar purlins to better serve your photovoltaic installation project. They are manufactured using multiple high-end roll-type cold forming machines at the Jucai Huixin factory. This ensures not only high dimensional accuracy and minimal errors in the. . roof purlins is a critical step in the construction of a ro & sPecIFIcAtIon Materials Stramit® Purlins and Girts. This specification can be found on the Stramit eb site and can be easily downloaded on to your documentation. meet the increasing demand for lightning. . produce electricity in a thermodynamic cycle. Thereby we have to introduce some solar panel support with Z profiles and purlins brackets,which are hot galvanized steel materialfor use in long time with better surface and onnection between the frame and its axis bar lars), sliding bearings and a. . ting socket; Planning. All local safety regulations and guidelines for working on.