The newer HF flux core welders are self feeding so you cant adjust the wire speed. I think it goes by power rating. I got an older Italian made HF Dual-Mig 130, before they went Chinese. I only use it as .030 flux but I got a small Argon tank and a regulator as well as the .025 solid wire...just never used the gas side. I had a crap spool of old HF scrap metal flux wire that wasn't worth a ****. I bought some new HF 'Vulcan' wire (I get alot of HF cards so I shop there often) and that stuff was so much better than even the small spool of Lincoln I had. The feed roller is the same as the Lincolns and I need a new one as mine is always slipping. The new design wheels are knurled inside the groove for better grip. also they Screwed up on the thread of the spool axle. Its just an arbor with a threaded rod and thumb nut to keep the spool on. Well the spool rotates CCW as its wire is pulled out and the stupid nut unscrews! Just a peeve I have with my $50 buck welder...yup, $50 used at Pomona swap meet. Had to carry that thing about 1/4 mile back to my car. Looks like this one but has reversible polarity DIN plug on the front. and a gas line out the back. I wish it had a better amp control instead of min/max and 1/2. Pretty bad duty cycle. will go into thermal shutdown after about 1 minute of continuous welding! That new Vulcan wire saved me from tossing this in the trash as those old beads were so bad.
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