Which MIG Feed Roll - U Groove, V Groove or Knurled?



V Groove Feed Roll


Are used for hard wires such as steel, stainless steel where the wire shape is not deformed due to tensioner pressure.










U Groove Feed Roll

Are used for soft wires such as aluminium. This type of wire can easily deform its shape making poor current pick up at the contact tip.









Knurled Feed Roll

Are used on tubular cored wires which are easily deformed.

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 Jasic Welding & Cutting Inverters 2020