These are my favorite double pulse MIG welding machines for aluminium, stainless steel and copper... You can also weld in Lift TIG mode and MMA.
Headux TitanMIG 218X Pulse: https://www.donkpal.com/products/titanmig-218x-pulse
Decapower ULTRAMIG-230: https://www.amazon.fr/Decapower-ULTRMIG-Impulsions-Synergy-Soudage/dp/B0BZYVQSX6/ref=sr_1_1?keywords=ULTRAMIG&qid=1688112052&sr=8-1&tempUniqueId=10974TUbqIJry
Stahlwerk MIG MAG 200 Double Pulse Pro: https://www.welding-machines.com/mig200doublepulse?swa=j18cj77fh54de
00:00 Headux TitanMIG 218X Pulse
13:25 Decapower ULTRAMIG-230
25:49 Stahlwerk MIG MAG 200 Double Pulse Pro
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