We offers the Automatic Submerged Arc Horizontal Welder for tank fabrication applications. Unlike current girth welder on the market, the MSHW(AGW)series coes stanard with a Dual Drive System. This self-propellde submerged arc welding system can reduce field storage tank welding time as high as 25%. Weld defects are greatly reduced, saving tank erection costs. The Horizontal Welder is applicable for top-to-bottom or bottom-to-top construction single or double wall storage tanks for inside and outside welding. There are four standard units, however our design allows us to offer custom built units for non-standard applications.