Weld Systems Integrators (WSI)

Resistance Welding. Solved.

Standard and Custom Resistance Welding Machinery and Equipment

Weld Systems Integrators (WSI) is a manufacturer of rugged, innovative, high-quality resistance welding machines and equipment, 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.

In addition to manufacturing new resistance welders and welding systems, WSI now offers an IN-STOCK inventory NEW and USED welders, equipment, and accessories. All professionally stripped, inspected, repaired, and tested under load by an experienced technician.

WSI stocks 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 a 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 welding machinery equipment with global shipping and quick delivery.

Introducing WSI SELECT, our IN-STOCK / READYShip inventory of both NEW and USED resistance welding equipment. WSI SELECT features on-pallet inventory, available NOW at our Warrensville Heights, OH location. Purchase welding equipment today, and ship tomorrow.

Updated:  July 20, 2022


Weld Systems Integrators NEW ValuePress Resistance Welders are manufactured to the highest standards for a lifetime of performance and reliability. Best of all, ValuePress welders can be configured for many different welding applications without sacrificing features found on larger welders.


Be in total control of your welding process by monitoring key variables such as current, voltage, time, displacement, and more. Handheld, desktop, and machine-mounted weld checkers and monitors from Weld Systems Integrators can identify process trends and improve weld quality, ensuring production stability.


Testing the strength, durability, and quality of your weld is an essential step of any resistance welding operation. Push out testers and tensile testers available from Weld Systems Integrators (WSI) provide an alternative method of destructive and non-destructive testing, intended to help customers achieve more accurate results.


Introducing the NEW Weld Systems Integrators Fast Rise Time MFDC Welder. The new FRT-MFDC machine is ideal for welding applications requiring short weld times and high welding current.


Weld Systems Integrators is pleased to announce our next generation 12,000 Joule (12kJ) Capacitive Discharge (CD) Welder. WSI CD welders are ideal for projection welding fasteners, with standard or ring type projections, to Hot Stamped Aluminum Silicate (AlSi) coated materials, Galvanized and other coated 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.