MIG-140 series machines use the 15AK Euro torch; MIG-250 and heavier multi-process machines use MB24KD-class torches. Each product page lists the exact torch family and its spare-parts link.
What is the difference between 15AK and MB24KD torches?
15AK is the light-duty Euro-standard torch up to about 180 amps - perfect for 140-class machines. MB24KD is the heavier 250-amp torch with better heat handling for long fabrication passes.
When should I replace a MIG torch instead of rebuilding it?
If the liner is collapsed, the switch is dead, or the cable jacket is cracked at the strain relief, a new torch costs little more than the parts and saves the troubleshooting time.
How do I stop spatter from building up in the nozzle?
Dip the nozzle in anti-spatter spray or gel every few welds and knock the crust out with a nozzle reamer. Built-up spatter blocks gas flow and causes porosity.
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