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 resistance welding equipment includes:

  • Standard and custom welders
  • Press type spot welders
  • Projection type spot welders
  • Rocker arm spot welders
  • Seam welders
  • Small format resistance welders.

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.


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.


We are now a Stocking Importer and Master Distributor of TECNA Pedestal Welders, including Rocker Arm Spot Welders, Press-Type Spot Welders and Press / Projection Welders. We also carry a complete line of Bench WeldersPortable Spot Welding GunsTool Balancers and Accessories. Best of all, we keep an inventory IN-STOCK at our Warrensville Heights location for quick shipment and delivery. Visit TECNADirect.com to view our available TECNA equipment and accessories.


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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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.