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So Ive had the invertig 221 on my short list for quite a while now. As the Black Friday sale is on now Im very close to finally pulling the trigger. Ive started discussions on moving into a business opportunity that would require a lot of aluminum welding and the AHP unit I have now is starting to indicate its going sideways, again ..and I need a better machine that will stand up to everyday use as a primary machine should i end up making a commitment to this new venture. Theres a Sanrex 300 being offered used a couple hour drive from here but I cant find anyone with actual experience with one of these welders post thermal arc so I have my doubts about service after the sale. I know the TA units were very highly regarded but I dont know if the Sanrex units are up to the same standard. The extra punch of a 300 amp machine would be nice but I dont think its really necessary, at least at this point. Ive head so many positive things about the 221 but Ive never heard about one failing. Id love to hear from actual owners about the overall reliability of their machines and how the repair/warranty process works with HTP. Are these welders as durable as the lack of negative comments suggests?
Reply:I've read of a few failing here and there but obviously not too many. Nothing is bullet-proof, that is for sure. I torture tested mine on DCEN and it did surprisingly well. But I'm sure that reduced the lifespan just as it would any welding machine."a lot of aluminum welding" doesn't say much. Do you need to weld 16 gauge aluminum for 8 hours a day, or 3/8" thick aluminum 8 hours a day? BIG difference.
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Reply:Mine has not failed me. I do not use it daily. The water cooler is suspect with its not uncommon random flow alarm issue. Hopefully they have improve on that.
Reply:
Originally Posted by Oscar
I've read of a few failing here and there but obviously not too many. Nothing is bullet-proof, that is for sure. I torture tested mine on DCEN and it did surprisingly well. But I'm sure that reduced the lifespan just as it would any welding machine."a lot of aluminum welding" doesn't say much. Do you need to weld 16 gauge aluminum for 8 hours a day, or 3/8" thick aluminum 8 hours a day? BIG difference.
Reply:
Originally Posted by tapwelder
Mine has not failed me. I do not use it daily. The water cooler is suspect with its not uncommon random flow alarm issue. Hopefully they have improve on that.
Reply:I've had mine for a couple of years with no problems. I've welded up to 1/2" thick alum and it struggled but did it. I think the duty cycle is higher than what is advertised as I have done production welding and never hit cut-off on the duty cycle. Burns 4 mm 7018 all day long, and the pulsed stick feature saved my bacon on a couple of jobs.
Reply:
Originally Posted by winniweld
It remains to be seen how much “a lot of aluminum” actually constitutes. I’m going to venture a guess of 2 to 4 actual welding time 3 or 4 days a week.the rest of my time would be prep work and set up type work if this deal happens. Material thickness certainly wouldn’t be over 1/4” and for the most part would be 1/8” or thinner. Any idea how the warranty process works for the HTP machines, you certainly own enough of them have you discussed the actual warranty repair process with Jeff?
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