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Old 01-14-2004, 07:50 PM
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Thermal-arc equipment

I was wondering if anyone had any experience with Thermal-arc welders and how they compare to the other big brands. My experience has been mostly with Miller and Lincoln with Bernard guns. The 210 Amp mig I'm concidering comes with a Tweco gun. I'm aware that they are much better priced but want to know if its worth the extra bucks. Its immediate purpose is to help finish my truck project plus take on some side jobs. Any thoughts?

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Old 01-14-2004, 08:38 PM
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I have this machine at work and really like it. It's size does not compare to it's abilities, it fits in a gym bag (half the reason I bought it).

This type of inverter uses a semiconductor power supply so it is 1/8 the size of most machines. The arc is a reddish pink so that can throw you at first but believe me it has lots of ummmph. I regularly stick weld 1/8" rod with it and even though it is only rated at 60% for that size rod it has never slowed down once. I think these types of power supplies don't show thermal breakdown like regular winding style supplies. It realy shines with TIG and is so quiet you would swear it's just a computer running in the background.

They are really popular in Europe where size is a big factor, they are more expensive however. I can hardly believe that it hasn't taken over the entire market yet, once you try one you will be very impressed. I have mine hooked up to a 220V single phase 20A plug but it will run off 120V if you limit yourself to 3/32" rod.
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Old 01-15-2004, 02:25 PM
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I've seen those used in my area...pretty impressive. Is Thermal-arc a U.S. mfg? or are they off shore? I take it youv'e had no mechanical problems with yours?
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Old 01-15-2004, 06:39 PM
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Old 01-19-2004, 10:24 PM
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Gearhead,

I used a Thermal Arc portable unit w/Honda drive engine for about a year, doing structural stick welding. It performed well. It was as good as the Lincolns, Millers, etc.

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Old 01-20-2004, 02:19 AM
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Quote:
I have this machine at work and really like it. It's size does not compare to it's abilities, it fits in a gym bag (half the reason I bought it).
I'd like to know what Chuck plans on welding at the gym???




Kevin
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Old 01-20-2004, 08:34 PM
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Originally posted by kitkar
Gearhead,
It performed well. It was as good as the Lincolns, Millers, etc.

kitkar
Well allright then, its a done deal... I bought it today. Now where did I put that pony panel and breakers??
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Old 01-21-2004, 11:31 PM
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I'd like to know what Chuck plans on welding at the gym???




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Old 03-05-2004, 11:42 AM
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Update: I finally took delivery of the welder. It doesn't seem to have the same top end as the 200A Miller I use at work, but it is dynamite on the lighter materials. Really smooth and stable. I don't really need to get into spray mode for much of what I plan on doing. I think it will be a solid buy. It's slightly smaller than the miller units and will fit right under my work bench. Perfect
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