Seven Roller Strip Leveling ZY16 Tube Mill Machine Φ8-18mm HF Welded Pipe

Problem Strip that enters forming with coil set, crown or edge wave produces uneven tube, off-center weld seams and roundness defects that cannot be corrected later in the line. Cause Coiled strip retains a curvature memory, and any edge wave or crown creates uneven tension across the strip width, which the forming stands then amplify into pipe defects. Solution The ZY16 seven-roller leveler works the strip back and forth to relieve coil set and flatten crown and edge wave