This 3N-380V 50/60Hz power welding machine supports welding diameters of 80–350mm with angles of 45°–90°/15°–60°. It welds cold rolled steel (0.3–0.8mm), galvanized sheet (0.3–0.8mm), and stainless steel (0.4–0.6mm) at welding speeds of 3–9m/min, with a 6mm overlap; it uses 2mm copper wire, cooling water of 4MPa/8.5L/min, and compressed air of 0.8MPa/600L/min (≤25°C). Welding power is 50–100KVA, and the unit measures 2300×950×1600mm with a net weight of 1.0T.
This machine is specialized welding equipment for bending pipes and elbows, mainly for ship pipe bending applications. It is used for seam welding two-piece, bent pipe sections made from cold-rolled sheet, galvanized sheet, stainless steel sheet, and cold-rolled base material. The weld seam is neat, dense, and uniform, providing reliable sealing, strong weld integrity, and high production efficiency.
The device uses a copper wire as the middle electrode to help prevent electrode damage caused by the galvanized layer, thereby ensuring stable welding quality.
The equipment includes two elbow welding units: one internal seam welding machine and one external seam welding machine.
Automatic control system (PLC): Delta
Pneumatic components: Yadeke
Main reduction motor: Taiwan Yongkun
Intermediate relay: Schneider
Inverter brand: Delta
Motor brand: Siemens
Advantages and Applications