The Lercoln Automatic Tank Welder AGW) is a submerged arc welding machine designed for welding the horisontal seems for oil, gas, and grain storage tanks in field conditions. Butt welds can be made on the inside or outside in either travel direction.

The tank welder cradle includes frame and operator platform, bearing the operator and system controls, flux feed and recirculation system, welding machine, as well as welding control and wire feed unit.

Sub arc Lincoln Electric NA3–SF welding control and automatic wire feed unit is installed in the operator platform. The machine is supplied with one Lincoln Electric DC600 or DC1000 welding power source mounted on a separate frame to be located on the ground.

The welding torch assembly contains a fully adjustable torch, an adjustable flux support conveyor system with flux drop and pick-up tubes. A guide pointer is provided to help locate the torch in the weld seam.

The unfused flux is collected from the flux belt conveyor, and returned to the recovery unit where it is filtered and magnetically screened prior to delivery into the flux hopper.

The flux hopper is provided with heaters to help maintain dry welding flux.

The machine is supported by the top edge of the tank shell or skin plates and joins them to the ones immediately beneath. The machine makes either the inside or outside butt weld in a 3 o'clock position with the one side machines and in the 3 and 9 o’clock positions with the double side machines. Horizontal drive system allows for welding around the entier tank.

When one side is welded, the machine is lifted off with a crane, turned around and placed on the opposite side and the second side is welded.

When a tier is complete, the machine is lifted off with a crane and the next row of plates are tacked in place and the weld cycle is repeated.

A two-sided or double Tank Welder is available for simultaneous welding on both sides of plates with opposing arc spacings of ut to 3" (75mm).

The machine can be separated and one side used as a single unit.

An optional fitted cover with side windows and zip fasteners is available for machine to protect welding zone and operator, and to minimize flux loss caused by gusting winds.

Tank Welder Technical Date:
Welding Process: Welding Control and Automatic Wire Feed Unit: Electrode Diameters: Electrode Reel Capacity: Flux Hooper Capacity: Flux Heater: Welding Speed (Travel Speed): Minimum Tank Diameter: Plate Height: Plate Thickness: Machine Weight without Flux and Electrode: Machine Weight ready for Welding: Power Source: Power Requirement: motor power source Flux Recovery and Flux Heater	Submerged Arc and Innershield Lincoln Electric NA3-SF 3/32" (2,5mmm) — 1/8" (3mm) 60lbs. (27,2kg) 60lbs. (27,2kg) 700Wt up to 100in/min 15 feet (4,6m) from 4 feet (min) to 10 feet (max) from 1/4" (min) to 2" (max) 1800 lbs. (816kg) 2100 lbs. (952kg) DC600 or DC1000 Lincoln Electric generator with provision for remote control 110/120V, 1 ph, 50–60 hz, 20A 230/380V, 3 ph, 50–60 hz 8A, 380V or 20A, 120V, 1 ph, 50–60 hz

Automatic Girth Welder FeaturesEffectively cuts welding time up to 40%Adjustable frame for plates 6ft to 10ft tall (1.8m-3m)Unlimited tank diameters down to 20' in diameterHigh / low rapid travel select controlsSelf propelled at speeds from 4 to 105 IPMPlates up to 2" thickSingle and Double sided operation