Tig 400 Ij

Water-cooled welding torches use a radiator cooling system to circulate coolant, ambient air, and shielding gas in order to expel heat from the torch. Cables for water-cooled torches contain less copper than air-cooled, making them lighter and more flexible to work with.A larger torch with a lot of power will need to be water cooled if you want to weld for any length of time, while a smaller torch can be air or water cooled.According to Mark Gallina, liquid cooling more “efficiently distributes heat over more convection surface area (radiator) than pure conduction, allowing for reduced fan speeds (better acoustics) or higher total power.” In other words, it's more efficient, and often quieter.