The Tru-Weld TWi-250CP CD stud welder is the pin variant of Tru-Weld's compact TW-i capacitor discharge stud welding series, specifically designed for use with cup heads. Where the standard TWi-250 carries a secondary weld ground connector on its front panel, the TWi-250CP replaces it with an exclusive cup pin weld ground connector, making this the correctly specified CD stud welding machine for any operation running cup head pins alongside standard capacitor discharge weld studs and weld pins in the 14-gauge to 1/4" range.
Built on the same solid-state platform as the full TW-i line, the TWi-250CP brings touchscreen preset controls, universal input voltage, and an ergonomic capacitor discharge stud welding gun to every cup-head pin application. Complete Stud Welding supplies this machine with full CD stud welding equipment support, including compatible CD weld studs, capacitor discharge weld pins, and stud gun accessories ready to ship.
The TWi-250CP carries every feature built into the TW-i capacitor discharge stud welding platform, plus the cup-head pin ground connector that makes it the right machine for cup-pin applications. Every feature listed below is drawn from the official Tru-Weld operator's manual.
The front panel of the TWi-250CP includes a cup pin weld ground connector exclusive to this model. On every other TW-i unit, this connector position serves as a secondary weld ground. On the TWi-250CP, it is purpose-wired for cup head pin welding, providing the correct ground path for clean, repeatable capacitor discharge weld pin results.
The touchscreen displays recommended voltage presets for standard CD weld stud and capacitor discharge weld pin sizes. A metric stud mode is included for international fastener compatibility. Operators select the stud or pin size on screen, and the unit loads the factory starting voltage with no manual input required.
The TWi-250CP discharges directly to a new voltage set point without fully cycling down first. Changing between CD welding stud sizes mid-production no longer means waiting through a complete discharge-recharge sequence; the machine moves straight to the new setting.
Accepts 110VAC at 15A or 220VAC at 7.5A, 50/60Hz. No internal re-tapping, no transformer swaps. The same TWi-250CP CD stud welding machine runs on whatever supply your facility or job site provides.
The unit's low input-voltage tolerance keeps it operating reliably on long extension-cord runs to remote work areas. It's an important functional feature when CD stud welding equipment needs to reach across large floors or deep into building interiors.
Components are internally mounted with rigid construction to prevent connections or parts from working loose during transport, rough handling, or continuous high-cycle operation on active job sites.
Front-panel contact and trigger status indicators enable quick, on-site troubleshooting of hand-tool and weld-cable issues. This allows operators to identify the source of the problem immediately, without needing to return the unit for diagnosis.
Complete Stud Welding is your go-to source for the Tru-Weld TWi-250CP capacitor discharge system with a 1/4" cup head pin. We provide a variety of CD weld studs, pins, stud welding gun components, and accessories. Enjoy expert guidance, fast delivery, and hands-on technical support with every order.
