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Large-scale steel structures—such as stadiums, airports, high-rise buildings, and industrial plants—require rolling large steel plates (e.g., 20-60mm-thick structural steel, 15-40mm-thick stainless steel) into curved components like roof trusses, column casings, and beam sections. These components must meet strict structural standards (e.g., AISC, BS EN 1090) for load-bearing capacity, which means the rolling machine must ensure consistent curvature, uniform thickness, and no material damage. Nantong Yeshun Machinery’s 4-Roll Plate Rolling Machine (based on our W12 CNC series) is engineered to meet these demands, integrating advanced CNC control, heavy-duty rolls, and precision pressure management to produce curved steel components for large-scale projects. The features of this machine tailored to steel structure projects include: 1) 4-roll design for efficiency and precision: The 4-roll configuration (top, two side, bottom rolls) allows for single-pass rolling of large structural plates—reducing processing time by 35% compared to 3-roll machines. The top roll is driven by a high-power motor (up to 90kW) that ensures consistent rotation for plates up to 6000mm wide, while the side rolls are hydraulically adjusted to control curvature (radius range: 1000mm-20,000mm)—critical for large roof trusses and curved beams. 2) CNC control for structural-specific rolling: Equipped with a Delem DA69T CNC system with custom software for steel structures—including features like variable radius programming (for tapered roof sections), batch processing (for multiple identical beam sections), and real-time curvature monitoring (via laser sensors). The system stores parameters for common structural steels (e.g., Q345B, S355JR) to simplify setup for repeat projects. 3) Heavy-duty construction for structural plates: The rolls are made from 42CrMo alloy steel with a surface hardness of HRC 58-60 and a diameter of 300-400mm, ensuring they withstand the pressure of thick plate rolling without deformation. The machine’s frame is constructed from welded Q690 high-strength steel with a box-type structure, reducing flexure to less than 0.1mm under maximum load—ensuring uniform thickness in structural components. A Middle Eastern construction company uses 3 of our 4-Roll Plate Rolling Machines to produce curved steel components for a new international airport terminal (roof area 50,000㎡). The company processes 30-50mm-thick S355JR structural steel plates into roof trusses with lengths of 8-12 meters and curvature radii of 5-10 meters. Prior to using Yeshun’s machines, the company relied on 3-roll machines that required 2-3 passes per truss, resulting in a 5-hour processing time and a 6% defect rate due to inconsistent curvature. After switching to Yeshun’s 4-roll models, the processing time per truss was reduced to 2 hours, and the defect rate dropped to 0.9%. The company’s engineering manager noted that “the Yeshun machine’s 4-roll design and CNC control have allowed us to meet the tight tolerances of the airport’s structural design—our roof trusses fit perfectly during assembly, reducing on-site rework by 80%.” Our pre-sales service includes a detailed analysis of your steel structure project (component dimensions, plate thickness, material, curvature requirements) to recommend the optimal machine model and roll configuration. We also provide a rolling simulation to validate feasibility and ensure compliance with structural standards. Post-sales support includes on-site installation, training for your operators on structural-specific rolling techniques, and technical support for BS EN 1090/AISC certification documentation. For inquiries about the machine’s ability to produce your structural components, or to request a project-specific proposal, please contact our steel structure solutions team.