About Weld Systems Integrators (WSI), manufacturer and distributor of resistance welding equipment and machinery, and integrator of robotic resistance and MIG welding cells. WE MAKE GREAT WELDS!

Weld Systems Integrators STANDARD and CUSTOM resistance welding equipment includes:

  • Press type spot welders
  • Projection welders
  • Rocker arm spot welders
  • Seam welders
  • Bench and micro welders
  • Portable weld guns

We also stock resistance welding accessories, parts and supplies, including portable spot welding guns, consumables, controls, chillers, transformers and balancers. We support our resistance welding equipment with strong service, training, welding lab testing and contract engineering capabilities.

Brochure - WSI Linecard | Weld Systems Integrators


Weld Systems Integrators was founded in 2000 by a group of industry veterans. WSI has become a global provider of engineered welding solutions and products for a wide array of industries. We’re proud to be a Sustaining Member of the American Welding Society (AWS), the Resistance Welding Manufacturing Alliance (RWMA), as well as WEMCO, an Association of Welding Equipment Manufacturers.


WSI is Stocking Master Distributor of TECNA Industrial Resistance Welders and Tool Balancers. TECNADirect.com (a division of WSI), stocks, sells, repairs and supports TECNA pedestal welders, portable welding guns, bench welders, tool balancers and accessories. Factory direct from our Warrensville Heights, OHIO location, or through our distributor network, trust TECNADirect.com for quick shipment and delivery throughout the United States.


Click here for a list of brands we represent.

Struggling to find a solution to a difficult joining application? WSI has over 10 years of proven results with tough-to-weld applications, like projection welding fasteners to Hot-Stamped, High-Boron AlSi-Coated parts! WSI Capacitor Dischage Welders can make good welds 100% of the time.

Learn more about WSI Equipment and Services:

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Sponsor - How to Resistance Weld | Weld Systems Integrators

A World of Education in Resistance Welding

The HowToResisanceWeld.org site is the product of, and supported by, members of the Resistance Welding Manufacturers Association (RWMA).

Resistance Welding Manufacturing Alliance (RWMA) is an active network of industry professionals that advances resistance welding technologies, supports the highest technical standards for the industry and shares best practices amongst all its members in order to shape the future of our industry for the next generation. Promoting the technology by educating the manufacturing community in documented processes, standards and advancements are critical to keeping resistance welding at the forefront of automotive, aerospace and industrial manufacturing.

For more information, on Weld Systems Integrators (WSI) our equipment and accessories, REQUEST A QUOTE, or give us a call at 844-WSI-WELD or +1-216-475-5629.