This automatic longitudinal straight seam welding machine is specially designed for straight seam welding of cylindrical shells and metal plates. Equipped with pneumatic key clamping structure to firmly fix workpieces, it achieves stable single-side welding and double-side forming. Widely applied to stainless steel tanks, ventilation ducts, filter barrels and cylindrical metal components. Compatible with TIG, MIG, MAG and Plasma welding processes. A variety of optional configurations can be equipped to meet diverse production requirements.

We adopt unified manufacturing standards for all seam welding equipment:

• Main beam and frame are processed via CNC cutting and precision machining
• Linear guides and rack & pinion driving components are purchased from certified suppliers
• Each machine passes continuous running test before delivery
• Electrical wiring complies with international industrial safety standards
• Assembly clearance is strictly controlled to ensure consistent welding travelling speed

• Pneumatic copper key clamping device, even compression, low workpiece deformation
• Precision rack and pinion drive, stepless adjustable welding travelling speed
• Built-in backing copper fixture, optimizing weld formation effect
• PLC touchscreen control, supports storage of multiple sets of welding parameters
• Adjustable welding torch holder, easy for position fine-tuning during operation

• Suitable for batch straight seam welding and forming of cylindrical metal workpieces and sheet metal parts
• Widely used for stainless steel water tanks, air duct cylinders, filter housings and pressure vessel shells
• Applicable to environmental protection equipment, food machinery, pipeline fittings and new energy industry parts processing
• Ideal for standardized mass production in metal fabrication and precision welding workshops