Straight seam welding is used to weld the vertical seam of the cylinder to the vertical seam of the plate.Suitable for gas shielded welding and argon arc welding autolysis (wire filling) and other welding methods.The workpiece is compressed by air bag type mechanism, and the full-length range of the workpiece is in full contact with the welded copper strip after compaction, so as to realize single-side welding and two-side molding to ensure the welding quality.It has a shielding device to protect the workpiece from deformation in the welding process, and the reverse weld is beautiful in shape.The equipment adopts PLC control to realize automatic welding operation!