Our steel drum longitudinal seam welding machine is the essential equipment that welds the rolled drum body along its straight seam, forming a continuous, leak-proof joint through resistance seam welding technology. The machine features upper and lower electrode wheels that apply pressure and current to the overlapped seam edges, creating a series of overlapping weld spots that form a continuous, gas-tight and liquid-tight seam along the entire length of the drum body. Designed for 200L and 210L steel drum production, the welder handles steel thicknesses from 0.6mm to 1.5mm at welding speeds up to 6–8m/min. The machine offers modular power supply options including single-phase AC and medium frequency inverter DC for stable weld quality with minimal heat-affected zones and reduced spatter. Standard features include water-cooled copper electrode wheels for consistent performance, PLC control with touchscreen interface for precise parameter adjustment, automatic scrap removal, and optional electrode wheel dressing systems. Available in semi-automatic and fully automatic configurations, our longitudinal welder integrates seamlessly with curling machines to form a complete rolling-welding station. Backed by over 10 years of manufacturing experience, we provide customized welding solutions, installation guidance, and comprehensive after-sales support to ensure your steel drums achieve reliable, leak-proof longitudinal seams.