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Tool Talk Discussion Forum

welder/generator sizing

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Ron(tex)

03-10-2004 11:32:28




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I plan to purchase a general purpose welder for working on the farm for repair work. I'll probably be getting a AC welder that delivers 225A or so. If I plan to used this welder in a remote site away from house power, what size generator will I need?
Also, would I be better off buying a generator/welder rig? A friend has a used rig on a trailer for 1000.00, what is both an AC/DC welder. Good deal?

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ScottR

03-12-2004 09:34:05




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 Re: welder/generator sizing in reply to Ron(tex), 03-10-2004 11:32:28  
Ron
Check on a Miller Legend welder. I have a legend and a bobcat. I use the legend to run my house before I went solar.(I'm off the grid) I use the bobcat to power my shop. Both work very well. My legend has over 50,000 hrs. on it. Both have Onan engines. The only thing I've had to do is replace one set of valves. The nice thing about the legend is it generates power at 1800 rpm. Which is idle speed. Most other gensets run at 3600 rpms. This makes a big diffrence when it come to fuel consumption. Plus you can hear the tv during those black outs. And we know thats the most important consideration. You may pay alittle more for the legend, but its worth it.

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gardener

03-15-2004 18:15:12




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 Re: Re: welder/generator sizing in reply to ScottR, 03-12-2004 09:34:05  
Hey guys, I want to find a PTO welder-generator with 5-10 K. How does this work to regulate the tractor's RPMs if i want it to run slow and quiet, and then need a surge of power for the kettle or variable rate of stick welding? What is the best unit for this?



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ray

03-12-2004 06:35:41




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 Re: welder/generator sizing in reply to Ron(tex), 03-10-2004 11:32:28  
I have a Miller Thunderbolt XL. A few generators - smallest being 6KW the 220 I believe is breakered at 25amps or there abouts. Having said that I use the Miller Thunderbolt XL all the time with the smaller generator. I usually run 3/32 or 1/8 rod with it. I don't know how it would perform with 3/16 (or larger) rod and higher heat settings -- but no issues in the few years I've been doing this.

If you're buying a welder and a generator at the time a welder/generator combination makes sense. Around here you can find a 10kw generator from yester-year with a 18hp Wisconsin on it for next to nothing -- so you might save a few $$ going that route but when something goes it may be difficult to repair or find parts for.

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Tom

03-11-2004 12:36:12




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 Re: welder/generator sizing in reply to Ron(tex), 03-10-2004 11:32:28  
I went through all this years ago. The solution I chose was to get a Miller Bobcat 225 Welder/Generator with a Kohler engine. I can weld DC or AC anywhere on the farm. I can power any power tool with "clean" 110 Volt or 220 Volt AC. I throw in my air compressor and run it off the bobcat, and then run a "T" post pneumatic driver off the air compressor. I had my house and my barn wired so I can use the Bobcat to run my water well, lights, TV, etc during any power outages. I have it permanently mounted on a single axle trailer, along with my oxy/acet rig. I have never regreted biting the bullet and duying something for the long term that yields professional results anywhere I want to use it.

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T_Bone

03-10-2004 17:30:34




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 Re: welder/generator sizing in reply to Ron(tex), 03-10-2004 11:32:28  
Hi Ron,

The Miller Thunderbolt XL is a 150amp DC, 200amp AC, infinate amp adjustment (fixed 15amp jumps on the Lincoln), 15% duty cycle, about $425 street priced. Will make a good scratch start Tig rig id needed.

You'll need a 4kw generator, 5kw would be best.

Can't tell you if $1k is good or not. We need more info. Get details then post back.

T_Bone



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LesWV

03-10-2004 15:16:28




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 Re: welder/generator sizing in reply to Ron(tex), 03-10-2004 11:32:28  
Ron
You would have less money invested if you were to just go ahead and buy a good little gas driven welder such as a Lincoln Ranger 8 or 10. The biggest difference between the two are the generators. One has an 8500 Watt and the other a 10,000 watt.
I have a Ranger 8 that I bought for $2300 new about 3 years ago.

With a Ranger 10 you will also be able to AC/DC weld, Tig, Mig and Flux core weld for less than $3000.00.

With a engine driven welder. You will only have to load one piece of equipment. For the welder and generator are all built together in a neat little package. It will run just about any power tool that you wish to use with either 120 or 220 Volts. Then it can be used as an emergancy generator also.

Like I say. By the time that you buy a cheap $300 Lincoln AC welder and then buy a generator to power it. You could have bought the whole packaged deal.

The link to Welding Mart below can let you compare tons of different welder makes and models.

Another great site for finding welding tools and supplies is the Welding Depot at

www.weldingdepot.com/

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