Is your complete source for Automatic Storage Tank Welding Machines.We specialize in custom built to order automatic vertical & horizontal tank welding machines for Flat Bottom & LNG tanks. We have over 10 standard Automatic Girth Welders (AGW) A.K.A. (3 O'clock Welder) designs. Single pass (EGW) Electrogas Welder, VUP, AVW-multi pass, (AVW) Automatic Vert Welder. MPS frame, Vert Buggy, Tank Jacking system, Sphere & Vessel welders, Automatic Pipe Welder, Shop equipment, & Shipyard welders. This line of equipment is built with USA made Lincoln or Miller welding systems and German SEW drive motors. We also supply flux belts, tank fit up gear and scaffold brackets.