Miller Syncrowave 300 Ac/Dc TIG and Stick Welder (907782)

Shipping as a bare power source, this 300-amp Syncrowave suits a shop that already owns torches and leads and just needs the inverter itself. Auto-Link matches the unit automatically to whatever primary voltage is applied, skipping a manual linking step at install.

What it is built to do

Squarewave AC output with adjustable balance handles the oxide-cleaning job aluminum TIG welding depends on, and line voltage compensation rides through swings of plus or minus 10 percent without changing your settings. An Arc Timer and Cycle Counter log actual welding time and arc starts for job costing, while Pulsed TIG and adjustable DIG control widen the range of materials and electrodes this inverter handles well.

Before buying

As listed, this is the power source alone — 101 pounds, with an 8-foot cord carrying no plug — built for 208/240/480V service, single or three phase. You will need your own torch and leads, since only two Dinse connectors ship with it, and no cooling cart is part of this listing. A fan that runs only when needed keeps noise and energy use down between passes.

Common questions

Is a torch included? No — this listing covers the power source, Dinse connectors, and an owner's manual; torches and cooling carts are offered as separate packages.

Does it need three-phase power? Either single or three phase works, as long as the voltage matches.

Backed by a 3-year Miller warranty.

Specifications