Tank Welding

What Tank Welding does

Tank Welding LLC is a Bend, Oregon-based factory-direct designer and supplier of automatic tank welding machines used in field and shop construction of LNG and flat-bottom storage tanks. Founded in 2015, the company operates as a lean (1-10 employee) private LLC with no disclosed outside funding or parent ownership. The product portfolio is anchored by the Automatic Girth Welder (AGW / 3 O'clock Welder) family for horizontal circumferential welding, augmented by Electrogas Welders (EGW) for single-pass vertical welding up to 50mm plate thickness, AVW multi-pass vertical welders, hydraulic tank jacking systems, shell buggies, mobile power source trailers, and an aftermarket accessory line (LT7 magnetic device, LT7 seam tracker, Kevlar flux belts). Equipment integrates Lincoln Electric or Miller welding power sources with German-engineered SEW inverter-controlled drive motors, and select models carry closed-loop arc monitoring and weld seam automatic tracking.

The company's core technology differentiators are specialized mechanical configurations for narrow LNG annulus welding (expandable/removable lower frames), wind-shielding aluminum cabins for adverse-weather field welding, and flux recovery systems; these are designed in the USA by staff with field tank-construction experience and built through an undisclosed overseas manufacturing partner that has produced more than 2,500 machines shipped to over 60 countries.

Tank Welding runs a direct-to-customer, factory-direct sales motion with quote-based, build-to-order pricing, 8-12 week manufacturing lead times for standard frames, no published list pricing, and no distributor intermediaries. Customers are industrial tank construction contractors serving LNG/LPG/cryogenic and petroleum/chemical/shipbuilding end markets, with secondary use cases in sphere, digester, wind tower, and pressure vessel fabrication. Marketing is conducted primarily through the company website (product leaflets and downloadable PDFs), a LinkedIn company page, and direct email contact via [email protected], supporting enterprise-level, project-based sales across global freight lanes.

Name

Tank Welding

Legal name

Tank Welding LLC

Website

https://tankwelding.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Tank Welding LLC is a USA-based, factory-direct designer and supplier of automatic tank welding machines (AGW girth welders, EGW electrogas welders, AVW vertical welders, tank jacking systems) for industrial tank construction contractors serving LNG and flat-bottom storage tank projects globally.

Ownership category

akta.pro rank

Product category

Industrial Welding Equipment

NAICS

Welding and Soldering Equipment Manufacturing (333992)

akta.pro primary industry

Welding, Joining & Soldering Equipment (Arc, Resistance, Friction, Brazing) (IMAHADAH)

Keywords

• Automatic tank welding
• Industrial welding equipment
• LNG tank construction
• Submerged arc welding machines
• Storage tank fabrication

Headquarters

HQ city

Bend

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure

Revenue model

1. Automatic Tank Welding Equipment Sales: Factory direct sales of custom-built automatic tank welding machines including AGW girth welders, EGW electrogas welders, AVW vertical welders, tank jacking systems, and accessories. Equipment is built to order based on customer specifications. Manufacturing lead time is approximately 8-12 weeks for standard non-customized frames.
2. Accessories and Consumables: Sale of accessories including LT7 magnetic devices, LT7 seam tracking attachments, flux belts, and replacement parts. Components are available factory direct with global spare parts dispatch.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Tank Welding LLC designs, manufactures (via an overseas partner), and sells custom-built automatic tank welding machines and accessories for LNG and flat bottom storage tanks. Core offerings include Automatic Girth Welders (AGW/3 O'Clock Welders), Electrogas Welders (EGW), Automatic Vertical Welders (AVW), Tank Jacking Systems, Shell Buggies, and supporting accessories, all delivered factory-direct to tank construction contractors worldwide.

Product overview

Tank Welding LLC offers a comprehensive portfolio of automatic tank welding equipment for field and shop tank construction, centered on Automatic Girth Welders (AGW/3 O'clock Welders) for horizontal circumferential welding and various vertical welding solutions. The product line includes standard AGW models (AGW-EX, AGW-LW), LNG-specific variants (AGW-LNG), rail-mounted versions (AGW-P, AGW-P2), universal jacking models (AGW-U), and the AGW Stiffener Welder. Vertical welding is addressed through the Electrogas Welder (EGW-V/V/D/P) series for single-pass thick plate welding, the VUP Vertical Up Welder for high heat input applications, and the AVW-Multi Pass for multiple-pass FCAW operations. Supporting equipment includes the Automatic Vert Buggy and Shell Buggy for operator positioning, Hydraulic Tank Jacking Systems for top-down construction, Mobile Power Source (MPS) trailers, and accessories like LT7 Magnetic Devices and Seam Tracking attachments plus Flux Belt consumables. All machines integrate with Lincoln Electric or Miller welding systems and German SEW inverter-controlled drive motors.

Differentiator

Problem solved

Functional benefit

Products and services

• Automatic Girth Welder (AGW / 3 O'Clock Welder) Self-propelled automatic horizontal tank welder (3 O'Clock Welder) for on-site erection of large storage tanks, silos, blast furnaces and cylindrical objects. Available in single and double-sided configurations with submerged arc welding capability, expandable and removable lower frame for narrow LNG tank spaces, welding seam automatic tracking, and flux recovery system.
• Light Weight Automatic Girth Welder (AGW-LW) Open-frame lightweight version of the AGW with expandable and removable lower frame, built for reduced weight and maneuverability in tight spaces on LNG and flat bottom tanks. Available in single or double sided configurations.
• AGW-LNG (LNG Automatic Girth Welder) Single or double-sided AGW variant specifically engineered to fit in the narrow space between the outer tank wall and inner LNG tank shell plate for low-temperature storage tank automatic girth welding.
• AGW-P (Rail-Mounted Automatic Girth Welder) Unmanned self-propelled AGW that travels on a rail temporarily fixed to the shell plate, intended for welding spheres, digesters, and pressure vessels, and also suitable for tank shell repair work.
• AGW-P2 (Automatic Curved Plate Welder) Rail-mounted AGW variant developed for welding out-of-position girth seams on pressure vessels such as spheres and digesters.
• AGW-U (Universal Automatic Girth Welder) Single-sided AGW variant for bottom-up or top-down tank jacking construction, designed for standard flat bottom tanks with wider scaffolding requirements.
• AGW Stiffener Welder Custom-built automatic girth welder with a wide range of vertical adjustment for welding stiffeners onto tank shell plates.
• Electrogas Welder (EGW-V) Single-pass electrogas (arc) welding machine with closed-loop arc monitoring via current feedback for high-speed vertical welding of thick plates up to 50mm in petroleum, chemical, and shipbuilding industries.
• EGW-V/D (Inverse Installation Electrogas Welder) Inverse installation electrogas welding machine designed for jacking construction of storage tanks.
• EGW-P (Unmanned Electrogas Welder) Lightweight unmanned electrogas welding machine designed for power generation and wind tower welding applications.
• VUP (Vertical Up Welder) High heat input vertical up welder using Lincoln self-shielded NR431 Inner shield wire, designed as a column-type electrogas welder for carbon steel storage tanks in warm climates.
• AVW-Multi Pass (Automatic Vert Welder) Multiple-pass flux-cored wire welding machine with low heat input for gas shielded FCAW/dual shield, designed for field construction of special steel grades including low-temperature 9%Ni steel and stainless steel. Includes full aluminum panel wind-shielding cabin in single or double sided configurations.
• AVW-Multi Pass Curved Plate Welder Multiple-pass flux-cored vertical curved plate welding machine integrating with BUG-O or GULLCO welding carriages for mechanized gas shielded FCAW on spheres and digesters.
• Automatic Vert Buggy Automated vertical welding buggy with expandable/retractable operator basket, allowing independent vertical movement of each side, powered by twin German SEW inverter-controlled drive motors. Custom built to order to improve production and safety in tank construction.
• Shell Buggy Manual chain pulley-driven buggy (also called a Vert Buggy) for manual tank construction operations at heights, featuring a folding design for shipping, swivel drive wheels, and safety enclosed steel mesh frame. Available in single or double sided configurations.
• Hydraulic Tank Jacking System Dual-stage hydraulic cylinder system used to lift and build storage tanks from the top down, enabling horizontal and vertical welding to be conducted on the ground with AGW and EGW machines.
• MPS (Mobile Power Source) Tow-behind mobile power source trailer (skid) built in double or single sided configurations for AGW, EGW, AVW, and VUP welders, with optional spill containment.
• LT7 Magnetic Device Attachment Magnetic attachment for the Lincoln LT7 tractor that bolts to its existing lifting point, enabling the machine to travel on annular plate overhangs for outside corner weld automation.
• LT7 Seam Tracking Device Precision tracking wheel replacement for the Lincoln LT7 tractor that rides inside the weld seam for consistent arc placement on long uninterrupted runs.
• Flux Belt High-density USA-made Kevlar flux belt for horizontal submerged arc welding, engineered to withstand extreme temperatures and mechanical abrasion during heavy wall tank fabrication.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature5 records

Partnerships

Five partnerships are on record, tiered core and standard.

• Lincoln ElectriccoreTechnology or IntegrationEquipment built with USA-made Lincoln Electric welding systems as standard configuration. Lincoln welding systems integrated into all Automatic Girth Welders, Electrogas Welders, and Automatic Vertical Welders. Other welding systems available on client request.
• Miller (welding systems)coreTechnology or IntegrationEquipment can be built with Miller welding systems as alternative to Lincoln Electric. Available across full product line including AGW, EGW, and AVW machines.
• SEW (German motors)coreTechnology or IntegrationAGW travel powered by top of the line twin German-engineered inverter controlled SEW drive motors. Dual SEW motors drive system ensures reliable and steady weld travel. SEW drive system used across equipment line for horizontal travel systems.
• Overseas Manufacturing PartnercoreOEM/ Whitelabel/ Licensing PartnerEngineering and manufacturing partner company located overseas where equipment is built and shipped from. Has built and delivered over 2,500 automatic tank welding machines globally across 60+ countries. Tank Welding LLC designs the equipment in the USA; partner handles fabrication and global shipping logistics.
• Bug-O / GULLCOstandardTechnology or IntegrationAVW machines integrated with standard Bug-O or GULLCO welding carriages for mechanized FCAW (Flux-Cored Arc Welding). Matched with Bug-O MDS automatic welding carriage and Lincoln LN-10 wire feeder.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Miller Electric: Major industrial welding equipment manufacturer owned by ITW, offering power sources and automated welding systems. Comparable as a supplier of welding power sources for tank welding machines and as a broad incumbent in mechanized welding for industrial fabrication.
• Kemppi: Finnish manufacturer of welding equipment and software for industrial and heavy fabrication. Comparable as a supplier of welding power sources and automated welding systems used in tank and pressure vessel construction, operating as a broad European incumbent.
• Fronius International: Austrian-based global manufacturer of welding systems, robotics, and solar energy. Overlaps with Tank Welding on automated welding power sources and integrated welding solutions for industrial fabrication, though it is a broad incumbent across multiple welding categories.
• Lincoln Electric: Largest dedicated welding company globally, supplying welding systems, automation, and consumables. Both a Tier-1 component supplier to Tank Welding (Lincoln welding power sources are the standard configuration) and a broad competitor in automated welding equipment for tank and vessel construction.
• Panasonic Welding Systems: Division of Panasonic providing welding robots, power sources, and automation for industrial fabrication. Comparable to Tank Welding on automated welding solutions for tanks and heavy industrial applications, though operating as a broad incumbent across robotics and arc welding.
• CLOOS: German manufacturer of robotic and automated welding systems specializing in thick-plate and heavy industrial applications, including tanks, pressure vessels, and shipbuilding. Comparable to Tank Welding's EGW and AVW product lines for high-deposition, thick-plate welding.
• ESAB: Global welding and cutting giant with mechanized and automated welding solutions across tank, pressure vessel, and structural fabrication. Overlaps with Tank Welding on automated welding equipment for industrial fabrication but operates across a much broader welding portfolio.

Direct peers

• Koike Aronson: Long-established manufacturer of welding positioners, manipulators, and automated tank welding equipment. Directly comparable to Tank Welding in product category (mechanized tank welding) and customer base (tank fabricators and EPC contractors).
• BUG-O Systems: Manufacturer of mechanized welding carriages and automated welding systems used in tank, pressure vessel, and structural fabrication. Directly comparable to Tank Welding's AVW vertical welders, which integrate BUG-O MDS carriages; competes in the same mechanized welding niche.
• Gullco International: Manufacturer of automated welding carriages, oscillators, and cutting equipment for industrial fabrication. Directly comparable as a supplier of mechanized welding carriages used in Tank Welding's AVW systems and as a competing provider of automated vertical welding solutions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tank-welding

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tank Welding