Used welding positioners, manipulators, turning rolls, seamers, welders, turntables, headstocks, tank rotators, machines and equipment. Cincinnati Oh.Weld Plus Inc. Welding Machinery - Equipment Weld Plus Inc. We Rent or purchase used, welding equipment and machines for reconditioning. Welding positioners, sub arc weld manipulators, tank turning rolls, weld seamers, power vessel rotators, subarc weld head directors, floor turntables, rotary turn table, headstocks - tailstocks, lathes, girth seam welders, geared tilting tables, column booms manipulator used for pipe rotation fabricating. Seamer