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Improve storage tank welding and lower your costs

In tank storage construction, two factors can greatly affect the overall cost of a project: Labor costs and consumables. Koike Aronson can help you reduce both of these expenditures, while also providing superior weld accuracy and reduced time to completion. Our vertical up-welder and automatic girth welder are ideal for such applications as oil storage tank fabrication, water storage tank construction, nuclear power plants and waste management facilities.

Automatic Girth Welder (AGW)

The Automatic Girth Welder (AGW), which is also known as a 3:00 welder (3 o'clock welder) performs x-ray quality horizontal welds up to 20 times faster than manual techniques, slashing the in-field welding time for storage tanks by up to 40%. 

Operating at speeds up to 105 inches per minute, the AGW can handle plates as thick as 1-3/4" and tank diameters as large as you want to build. The adjustable A-frame telescopes manually to handle 6-10’ high steel plates. 

Ergonomically designed for efficiency, convenience and accessibility, the AGW includes the Lincoln NA-3 solid state control and welding head fitted with nozzles, wire feed rolls, strengtheners and 50 lb. wire reels for either single or twin-arc wire. It’s available as a single sided or dual sided mobile welding station, completely equipped with welding heads, all controls, flux support belts and flux recovery units. 

The automatic girth welder straddles the tank shell plates, riding on serrated steel drive wheels that can be adjusted for tank diameter. The AGW's operator platform is a sturdy and solid workstation with guardrails and all-weather curtains for operator safety and comfort. The double platform is fully equipped with its own direction and speed controls. An access ladder allows movement to the primary flux separator tank and to the side of the dual unit.   


Automatic Girth Welder features and benefits:

  • Reduces welding time up to 40%
  • Adjustable frame for plates 6-10 feet tall (1.8m-3m)
  • Unlimited tank diameters down to 20' in diameter
  • High / low rapid travel select controls
  • Self propelled at speeds from 4 to 105 IPM
  • Plates up to 2" thick
  • Single and Double sided operation

Vertical Up Welder (VUP)

Koike Aronson’s vertical up welder a single pass machine that can weld 10-12 vertical seams on a field erected storage tank with 8' tall x 1" thick seams in a single work shift. These X-ray quality welds can be performed with one operator and one machine.

The VUP features a vertical column mounted on a powered carriage assembly supported by the top edge of the tank shell. Lift controls include an up/down switch, rapid speed selector and high/low speed potentiometers. These control a variable speed motor that is electronically calibrated to the welding control, which automatically adjusts speed to maintain the optimum nozzle to weld puddle relationship.

The vertical up-welder features a Lincoln NA-3 head and control is supplied with two K-176 nozzles for welding with either 3/32" or .120" diameter NR-431 Innershield wire. The NA-3 head is mounted on a free moving slide providing manual lateral adjustment. An air operated bracket supports an articulated copper shoe assembly.

Your 3 o'clock horizontal welding machine is one of the best machines I have ever worked with.