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Up Topic Welders and Inspectors / Welding Equipment Classifieds / miller arc pak 350
- - By hd4man (*) Date 06-29-2008 05:57
here in san jose, ca i have a arc pak 350 with extras. such as : full 5foot tank argon, tig leads,stick leads,2 300amp mig leads reg pics on request.
i bough this not realizing the generator to run it would cost more than a miller 305 gen/welder.
i would like to get 600.00 for the lot.
greg in san jose 4084257171
Parent - - By sbcmweb (****) Date 06-29-2008 11:41
Did you do the panel & remote mods? Just wondered. S.W.
Parent - - By hd4man (*) Date 06-29-2008 19:57
no way to power it up.
Parent - - By sbcmweb (****) Date 06-29-2008 20:18
What I meant was, did you install the controls & remote pigtail on the machine, or was it like that when you got it? I have never seen an arc pak with a control panel on it. They normally have a 14 & 17 pin outlets  on them being used for a remote pendant & a wire feeder. Whoever did the work on it did a nice job by the looks of it. S.W.
Parent - - By hd4man (*) Date 06-29-2008 21:15
the 14 pin is or has ran a tig set-up.
what do you think this set-up is worth. i am ready to pick-up a 180 mig on ebay and a 10kw generator.
this is one of the first 350, built for a bridge builder. i am sure it works fine, i just do not have the watts to run it.
thanks,
greg in san jose
Parent - - By sbcmweb (****) Date 06-29-2008 22:23
It is kinda hard to say. As Lawrence had said, it's a very early inverter & Miller doesn't support them at all. There are parts available, but like any inverter, especially the earlier ones, usually the same parts go bad on them all. That's NOT to say it's worthless, I would love to have it to put a feeder on to sell. I would say what you're asking is very fair. I wouldn't sell it for any less than $500. Just hold on to it & don't give it away. Someone will come along. I know a guy that has a ton of these, but you need the pendant to operate those. The pendants are real hard to find though. I have never seen one with the panel set up with the control knobs on it like that. Usually, A set of meters go there & there's a control pendant that attaches to the machine via a 17 pin outlet. That's why I asked if you did the modification on it, or got it that way from someone else. Just hold out Greg, or look for a feeder to put on it. You'll get a buyer. Good luck! S.W.
Parent - - By hd4man (*) Date 06-29-2008 22:58
thanks for the good thought. i still need a generator to run whatever welder i use. will a 15kw portable, the kind you can get on line at big hardware stores, will one of these run the 350 ?
if i can get the right price on a generator to run the 350 i will uise it. confused?insanjosegreg.
thanks,
hd4man
Parent - - By sbcmweb (****) Date 06-29-2008 23:34
Hi Greg. The tech manual says it needs 60 amps @ 10 KW to run. It would probably run on less, but not well. It could fry too. What process do you need to do in the field? If stick, you can pick up a good cheap used generator/welder for around $500-1000 on average on ebay. You would need a pretty big generator to run this & if you are not looking to buy one that size anyways, I wouldn't recommend it. If you are getting one for all around use, you can get into a 10 KW generator/welder new for around $3000 & up. This would run on a 10 KW generator, but it wouldn't work very well & even though the generator power is usually very clean, the consistency isn't always the greatest for something like this. This is an OLD inverter & may not react well to being run from a generator. The old machines do not usually have built in line voltage compensation & can be very sensitive to even the smallest voltage drop or rise, depending on the source you're drawing your power from.  If you had a capacitor bank set up to avoid spikes from increased/decreased power due to engine rpm fluctuation on a generator, you may be ok. But I'm not an electronics expert & I wouldn't chance it. Those things can fry at the drop of a hat.

You will get fair money out of this if you get the right person. Just be aware that even though it works right now, old inverter technology is iffy & sensitive. When they fry, it's usually the end. Let me know if I can be of any more help down the road. The best of luck on it, Greg. Steve.
Parent - - By hd4man (*) Date 06-30-2008 00:08
Hi Steve, and  thanks a bunch. i think i will be better of with a seperate welder from generator. i will starting looking for a generator with 10 to 15kw and 60 amps.
such a generator will run a smaller inverter, and should meet my needs.
regards,
hd4man
Parent - By sbcmweb (****) Date 06-30-2008 00:12
Good luck. Ebay's a good place to look for a good buy! You'll find one. :-) S.W.
Parent - - By DaveBoyer (*****) Date 06-30-2008 03:24
   Keep in mind that an engine driven generator will need 2 HP on the engine per KW output. Another thing to be aware of is that the generator's rating might be based on a resistive load [power factor 1.0] It might not handle an inductive load close to it's rated output.

   I guess You are looking to be able to use the machine in the shop or on jobs with electric power as well as on jobs without. Some versions of the Miller Pipe pro 304 can run on it's own engine or from line power, I don't know anybody with one, but it is in the book.
Parent - - By hd4man (*) Date 06-30-2008 04:56
thanks for the info.  i am looking at a 18kw generator duropower. i will look at the spects. if i do get this generator i sure it will run a smaller inverter.
regards,
hd4man
greg in san jose
4084257171
Parent - - By DaveBoyer (*****) Date 06-30-2008 05:12
That is a pretty big generator, it might handle it OK. I guess You have a shop with no or insufficient power and it is not practical to run more power to it?
Parent - By hd4man (*) Date 06-30-2008 16:41
i do not have that kind ov wattage. a generator will be the way to go.
thanks,
hd4man
Up Topic Welders and Inspectors / Welding Equipment Classifieds / miller arc pak 350

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