Girth Welders

Reduce Field Storage Tank Welding Time by 40%

Bug-O Systems offers Automatic Girth Welders for tank fabrication applications. They are convertible for both bottom up and top-down construction. Bug-O Girth Welding Machines are also capable of being used as a pair to construct a dual-sided girth welder. Special models can be built per the customer’s request.

Unlike other girth welding machines on the market, the BGW (Bug-O Girth Welder) Series comes standard with a Dual Drive System and other features unique to our machines. This self-propelled submerged arc welding system can reduce field storage tank welding time by 40% by increasing arc on time and reducing weld defects. 

The models run directly on the tank and carry the operator, eliminating the need for scaffolding while ensuring operator comfort and safety. The Automatic Girth Welders are applicable for top-down or bottom-up constructed single or double-wall storage tanks, due to their modular design. 

They are designed for internal and external welding. There are four standard units and our design allows us to offer custom-built units for special applications.


  • Dual drive motor system
  • Efficient flux recovery system
  • Integrated control panel
  • Laser site guide
  • Ergonomic operator cabin
  • Adjustable weld head and flux belt support system

Bring Your Girth Welding Process to the Next Level

Learn more about how our Girth Welder family can help you increase efficiency, safety and profitability. If you want to learn more about our automatic welding machinery, download our brochures or contact us today. Reap the benefits of a high-quality tank welder machine that meets your needs.

Call factory for pricing.


Get In Touch


Whether you have questions about our operator-controlled machines or are interested in buying and need to contact a distributor, we can help. Contact us by filling out our form below or giving us a call. At Bug-O Systems, we are ready to help you access high-quality and efficient mechanized solutions.


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Our Address

280 Technology Drive
Canonsburg, PA 15317

Our Hours

Monday - Friday: 7:30am - 4:30pm ET