The c-purlin-roll-forming-machine is an indispensable automated piece of equipment in the modern steel structure industry, dedicated to transforming metal coils—including galvanized steel, cold-rolled steel, and aluminum alloy—into standardized C-shaped purlins with consistent dimensions and smooth surfaces. As a core processing tool, it serves a wide range of fields such as industrial workshop construction, logistics warehouse framing, photovoltaic support system manufacturing, light steel villa building, and agricultural greenhouse construction, providing high-quality structural components that balance load-bearing performance and cost efficiency.

The working principle of this machine is based on a continuous roll forming process, which integrates multiple functional modules to achieve a seamless production flow from raw material feeding to finished product output. First, the metal coil is fed into the uncoiling unit, which releases the coil stably while the leveling system eliminates internal stress and surface unevenness of the metal sheet, laying a solid foundation for precise forming. Then, the flattened sheet enters a series of carefully calibrated alloy steel rollers; each group of rollers applies a specific pressure and bending angle, gradually shaping the flat sheet into a C-section profile through progressive plastic deformation. This step-by-step forming method avoids material deformation or damage caused by excessive force, which is a common flaw in traditional stamping processes. Finally, the formed purlin is cut to a preset length by a high-precision cutting system controlled by a PLC program, ensuring that each finished product meets the strict size requirements of engineering projects.

This machine boasts a host of outstanding performance advantages that make it favored by manufacturers. Firstly, its forming precision is top-tier—with the synergistic control of roller calibration and intelligent automation, the dimensional error of the produced C-purlins is controlled within ±0.5mm, fully meeting the installation standards of high-end steel structure projects. Secondly, its production efficiency is remarkably high; a single production line can process 5–10 meters of purlins per minute, far exceeding the speed of manual or semi-automatic processing methods, and easily satisfying the large-batch production needs of tight-schedule projects. Thirdly, it optimizes material utilization; the streamlined roll forming path minimizes edge trimming waste, increasing the raw material utilization rate to over 95% and significantly reducing production costs for enterprises.

In addition to efficiency and precision, the c-purlin-roll-forming-machine also excels in flexibility and durability. Operators can adjust parameters quickly through a user-friendly touch control interface, switching between different purlin specifications (thickness ranging from 1.5–4mm, height from 100–300mm) without complex mechanical modifications, adapting to the diverse needs of different projects. The machine’s frame is made of thickened steel plates, ensuring stable operation even during long-term continuous production, while the wear-resistant alloy steel rollers extend the equipment’s service life and reduce maintenance frequency. Moreover, the machine adopts an energy-saving motor and low-noise design, complying with modern environmental protection and energy-saving production concepts, making it suitable for both large-scale factories and small-and-medium-sized processing workshops.



As the demand for green and high-efficiency construction continues to grow globally, the c-purlin-roll-forming-machine will play an increasingly important role in promoting the standardization and intensification of the steel structure industry, providing strong technical support for the development of infrastructure and renewable energy projects.