Sunstac 250A AC/DC TIG Welder with Pulse — Dual 110V/220V, Aluminum Welding Machine

Versatile aluminum welding with precision

The Sunstac 250A AC/DC TIG Welder with Pulse is built to adapt to a range of metal projects. It pairs aluminum-focused capability with multi-function TIG and stick options, giving you flexibility on both small repairs and mid-thickness joins. The dual voltage design helps you work at different job sites, while advanced features support cleaner, more controlled welds without requiring a dedicated welding setup.

Key capabilities at a glance

• AC TIG and DC TIG with high-frequency options designed to produce stable arcs on aluminum and alloy metals.
• Pulse TIG and SPOT TIG modes for controlled heat input, reinforced joints, and precision welds.
• STICK welding capability adds versatility for non-TIG tasks when needed.
• 250A output with dual voltage operation (110V or 220V) to fit various work environments.
• Built-in intelligent parameter saving to help you resume from where you left off, reducing setup time.

Smart design that supports your workflow

• LCD digital screen provides clear readings for voltage and current, even with a helmet on.
• Match your work style with 2T, 4T, or SPOT TIG modes and optional foot pedal control.
• Automatic return to pedal mode after restart if the foot pedal is plugged in, simplifying repeat work.

Materials and thickness flexibility

The machine welds a broad range of metals, including aluminum, alloy steel, copper, stainless steel, carbon steel, and iron. For aluminum, the max thickness is 4 mm at 110V and 6 mm at 220V, enabling both thin-walled and moderately thick joints with ease.

Usage notes and support

Current measurement in AC mode can vary with balance settings. If performance does not meet expectations, you can reach out via the Amazon Seller channel for assistance and guidance that aims to save you time and effort.