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 equipment, Sphere & pressure Vessel welders, Automatic Pipe Welder, Shop & Shipyard welders. This line of equipment is built with USA made Lincoln or Miller welding systems and German SEW drive motors. We also supply AGW flux belts, fit up hardware, and scaffold brackets.