WSI Press Type Welders FOR SALE at Weld Systems Integrators

Spot Welding, Projection Welding and Combined Spot / Projection Welding

WSI Press Type Welders from Weld Systems Integrators can be configured for spot welding, projection welding and combined spot / projection welding applications. Furthermore, our durable, heavy-duty press-type welders are air-operated and water-cooled, manufactured for many years of consistent, reliable service.

WSI Press Type Welders – Versatile machines for a wide range of resistance welding applications.

In the engineering stages, WSI utilizes the latest in computer-aided design software. The manufacturing process delivers precision machining for all frame requirements. In addition, our assembly utilizes state of the art components with time tested manufacturing techniques for a high performance, value-driven welder. The welders are tested under full power, certifying compliance to rigid specifications.

WSI resistance welders are MADE IN THE USA at our Warrensville Heights, OHIO location. Give us a call for IN-STOCK inventory.

Each press type welder is manufactured for a lifetime of performance.

WSI welders are an excellent choice for stand-alone tasks. Therefore, they can be coupled with value-added feeding equipment or tooling with parts eject system for ease and speed of operator use. Projection and spot welding machines can also be integrated into a manufacturing system, part of a work task cell, integrated into a robot cell, or designed into multi-spot requirement applications. Please feel free to contact our application engineers for your specific needs.

Made in USA | Weld Systems IntegratorsWSI Press Type Welder | Weld Systems Integrators

Frame Size Transformer (kVA1) Throat Depth (in.) Air Cylinder Diameter 2.3 (in.) Maximum / Retractable Stroke (in.) Platen Size (in.)
W1 30, 40, 50, 75, 100, 125 12, 18, 24, 30, 36, 42, 48 4, 5, 6 4 / 1 6 x 6
(RMWA #1)
W2 75, 100, 125, 150, 200 12, 18, 24, 30, 36, 42, 48 6, 8, 10 4 / 2 6 x 6, 8 x 8
(RMWA #2)
W3 150, 200, 250, 300, 400, 500 12, 18, 24, 30, 36 8, 10, 12 4 / 2 8 x 8, 9 x 9
(RMWA #3)


  • Available from 35 to 500 KVA @ 50% duty cycle
  • Throat depths from 12” to 48”
  • Aluminum ram for fast follow up
  • Heavy-duty frame
  • Thomson Slide featured as ram guide
  • Dual water manifolds with ball valve shut-offs
  • Adjustable knee brace
  • Hydraulic jack for ease of operator adjustment of lower knee
  • Stacked core Roman transformer with multi-position tap switch
  • Ejector type holders used on spot welders
  • Emergency stop
  • Single, three-phase, or mid-frequency transformers
  • Dual acting air cylinder, 4” standard stroke
  • Rigid secondary with heavy-duty laminated shunt
  • Adjustable lower knee for various applications
  • Two-stage foot switch • Color coded hosing for both air and water
  • Stacked core Roman transformer with multi-position tap switch
  • Emergency stop
  • Air filter, regulator with gauge, lubricator, approved air shut-off / lock-out
  • Adjustable air pressure switch
  • Water flow switch, visual, and / or electrically interfaced
  • Palm buttons / foot switch
  • Set of 4 quick disconnects on water hosing to tooling
  • Water chiller
  • Light curtains
  • Water filter package with replaceable cartridge
  • Water recirculator
  • Adjustable stroke air cylinder
  • Retractable stroke air cylinder
  • Additional regulator with gauge for nut welding
  • Air surge tank
  • Nut / stud feeding / sensing equipment
  • Adjustable pressure tip dress
  • Weld control choice with or without disconnect
  • Position feedback devices

Contact Weld Systems Integrators

Weld Systems Integrators (WSI) is your complete source for standard and custom resistance welders, consumables, spare and replacement parts and value added services. We offer WORLDWIDE shipping from our Warrensville Heights, OH location.

CONTACT Weld Systems Integrators, or REQUEST A QUOTE on standard IN-STOCK inventory or fully custom welding equipment. To speak with a WSI team member, please give us a call at 844-WSI-WELD or +1-216-475-5629.