WE MAKE GREAT WELDS! Weld Systems Integrators (WSI) is a manufacturer of rugged, innovative, high-quality resistance welding equipment and machinery, and integrator of robotic resistance and MIG welding cells. This 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. And we support our resistance welding equipment with strong service, training, welding lab testing and contract engineering capabilities.

WSI is a Master Distributor and Stocking Importer for TECNA resistance welding equipment, including spot and projection welders, portable guns and balancers. We keep an inventory of TECNA equipment in stock at our Warrenville Heights location for quick shipment and delivery.

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. WSI is 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.

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