Automatic Punching Solar Tracker 41 U Steel Bracket C Purlin Roll Forming Machine High Output. High Output Speed: Production speed reaches up to 25 meters per minute including punching operations. Lifetime After-Sales Support: Skilled technicians available globally to ensure continuous machine operation and business continuity. Flexible Customization: Produce various sizes by changing punching molds; sizes set arbitrarily via man-machine interface. Multi-Profile Capability: One production line can produce 4 types of U purlins: 41*41, 52, 62, and 72 mm. Premium Material Quality: Rollers made of Cr12Mov with salt bath quenching, hardness HR58-62 for durability. 30+ Years Experience: Manufacturer with over 30 years of R&D and manufacturing experience exporting to 80+ countries. ISO9001 Certified: Manufacturing process certified under ISO9001:2015 management system for quality assurance. Complete Service Package: We provide manufacturing, design, installation, and after-sales services for the entire line.