The Tru-Weld TWi-321 is the mid-range step up in the TW-i capacitor discharge stud welding series, built for operations that need to push past the 1/4" limit without moving to a larger, heavier machine. At 20.8 lbs. and the same compact footprint as the rest of the TW-i line, this CD stud welding machine handles the full span from 14-gauge capacitor discharge weld pins to 5/16" full-flanged stainless CD weld studs, all at 14 studs per minute with solid-state reliability.
Complete Stud Welding supplies the TWi-321 as part of a complete Tru-Weld stud welding setup. Whether you need the machine alone or paired with compatible CD welding studs, a capacitor discharge stud welding gun, and CD stud welding accessories, we configure your order to run from day one.
The TWi-321 CD Stud Welder offers advanced solid-state technology for efficient and precise welding applications. Designed for durability and ease of use, it provides exceptional control over the welding process. This compact, lightweight CD stud welder ensures portability without compromising performance.
The touchscreen comes preloaded with factory-recommended voltage settings for common CD weld stud and capacitor discharge weld pin sizes. A metric stud mode is included for international fastener compatibility. Select your stud size on screen, and the unit sets the correct starting voltage automatically.
When you change voltage settings between CD welding stud sizes, the TWi-321 discharges directly to the new set point without cycling completely down first. No waiting, no lost production time between adjustments.
Universal input voltage means this capacitor discharge stud welding machine accepts 110 or 220VAC at 50/60Hz without any internal re-tapping. One machine works across facilities, job trailers, and different site power supplies without hardware changes.
Low-input voltage tolerance keeps the TWi-321 operating reliably on long extension-cord runs to remote areas of a job site or fabrication floor. It's a practical feature when your CD stud welding equipment needs to reach where fixed outlets don't.
Front-panel contact and trigger status indicators let operators identify hand-tool and weld cable problems on the spot, without guesswork or sending the unit out for service.
Onboard indicators flag overtemperature, undervoltage, and duty-cycle limit conditions as they occur. The capacitor bank and internal components are protected from heat buildup and unstable power without any operator intervention.
Complete Stud Welding provides a comprehensive selection of Tru-Weld TWi-321 products, including compatible CD weld studs, capacitor discharge weld pins, components for CD stud welding guns, and all necessary accessories for your welding operations. We guarantee quick delivery and expert technical support with every order.
