This equipment is the newest model in the world, and is intelligent equipment for machining of ribs in shipyards. It is mainly used for the cold bending of hull ribs in different forms, and can machine bulb steel, angle steel and T-section. By automatic three-dimensional bending of section steel, work pieces in inward bending, outward bending or S bend can be derived; section steel can also be straighted and flattened. The working is conducted automatically, and the work may also be conducted in a semi-automatic manner or manually.