Photograph illustrates pedestal seam welder specially built for aerospace customer.

Seam or roll spot welds are made by seam-welding wheels rotated at a constant speed but with the current interrupted for longer periods of time between individual welds. The resulting welds are actually like those of overlapped spot welds.

These welding machines can be pedestal type for special applications but are supplied bench mounted as standard. Used for either high rate production lines or welding fabrication shops.