Professional TIG Welding Equipment with Water Cooling Protection and Robot Interface

630 amps of output on top end of the WSM-630, which is the unit most buyers in heavy fab end up going with, and it handles pulse frequency from 1 to 200 Hz so you can dial in the bead profile pretty precisely—actually, most shops run it around 80-120 Hz for standdard work. 2. The insulation class is H, which basically means the transformer can run hotter without breaking down, and that matters when you're pushing a 33 KVA load through an air-cooled machine for hours at a time. 3. It runs on AC380V three-phase, so you'll need that on the floor—we usually have stock on the 400A model, but the 500 and 630 might be a 20-day lead time or so depending on the batch (check with us before ordering). 4. What it does is start the arc with high frequency, no scratch starting, so that tungsten tip stays clean and you don't contaminate the weld puddle on aluminun or stainless. 5. The dimnesions are roughly 760mm deep by 590mm tall and it weighs about 60 kilos for the big unit, so plan your cart or stand accordingly; the 38kg version is easier to shift around a shop floor. 6. One thing that catches people is this isn't for sub-arc or automated MIG—it's strictly TIG and stick, and the water protection circuit is a simple on-off switch for the cooling system, not a variable flow control.