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Weld Systems Integrators (WSI)

Resistance Welding. Solved.

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 rocker arm spot welders, press-type spot welders, capacitor discharge welders, bench welders, seam welders, door welders, XY welders, turntable welders and multi-gun welders. Furthermore, power supplies include single-phase AC and CD, and three-phase DC and MFDC.

We stock a large, diverse inventory of resistance welding consumables, spare parts and accessories. This includes electrodes, portable spot welding guns, controls, chillers, transformers and more. And we support our equipment with excellent customer service, training, welding lab testing and contract engineering.

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, Weld Systems Integrators offers exceptional equipment with global shipping and quick delivery.

Looking to spend less and still receive a high quality welder? We keep an IN-STOCK inventory of USED resistance welders and equipment at our Warrensville Heights, Ohio location.

Updated:  Tuesday, September 8, 2020


Make multiple welds on a single part with our advanced multi-nut fully and semi-automated welders!

We offer a line of XY and XYZ servo resistance welders with standard size configurations. In addition, our new line of automated welders can be customized to fit unique customer application requirements.


WSI has added a 12 kilojoule (KJ) Capacitive Discharge (CD) Welder. This investment continues our leadership role in projection welding of fasteners to hot-stamped boron, press-hardened steels, extremely-hard aluminum, stainless steel alloys and the latest Gen III materials.


Weld Systems Integrators Resistance Welding Equipment, Machinery and Services

Purchase TECNA Welders and Tool Balancers!

TECNADirect.com is a stocking master distributor of TECNA Pedestal Welders, Portable Spot Welding Guns, Bench Welders and Accessories. Along with BALANCERSDirect.com, our dedicated Tool Balancer website, we maintain an IN-STOCK inventory of TECNA equipment at our Warrensville Heights, OH location.