F/S- F/T Airco Pulse Arc 350

Located in So. California. (Santa Ana)
With new Tweco gun, matching wirefeeder and some consumables. The
machine is in EXCELLENT condition and looks like it came right out of
the box. It was purchased by a prototype shop and likely has less than
10 hours total on it.
220/460 3Phase (which is why I cant use it..sigh)
Best offer cash or trade for?
Pictures will be available in a few days.
A welding shop that sells new and used machines (that I trust), told
me it is worth between $850-1200 to a commercial shop. depending on
location. He has seen the machine so knows the condition.
Im needing another Mig that will run on single phase and run .45 wire
well, as well as being able to run alum.
Gunner
"Considering the events of recent years,
the world has a long way to go to regain
its credibility and reputation with the US."
unknown
Reply to
Gunner
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Chuckle...that would indeed be a wonderful thing. I have a rotary converter..but best as I can figure...a machine this size is going to take about a 20 hp rotary phase converter...and I dont have the electrical service to run it..let alone the motor to make one.
Gunner
"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown
Reply to
Gunner
Too bad you don't have a nice year round stream nearby :) I know where there is a very nice 3 phase 32KVA peltonwheel generator setup for sale. Twod be the ultimate survivalist piece :)
Reply to
Glenn
oooooo!!!
Post it on misc.survivalism or alt.rural and someone will be sure to snag it pretty quickly
Gunner
"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown
Reply to
Gunner
Thanks for the tip. The neighbor has been trying to figure out how to sell it for about a year now. We moved it i the back of my 78 F250 and it took 2 trips. That sucker is heavy! The pelton wheel is about 4' tall and all cast iron. It has different nozzels for the amount of head you have and a neat controller for voltage and frequency. Glenn
Reply to
Glenn
Glenn I think there is a group called alt.rural.power or some such as well. It would be damded well received.
Id love to have it..but the only running water close by is the California Aquaduct...and somehow I suspect they wouldnt be amused...and its 14 miles away...
Gunner
"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown
Reply to
Gunner
Gunner, You are missing an important point. Welders only draw the amount of power needed to make the weld. So let's say you are welding with an 0.045" wire at a weld current of 150 amps and an arc voltage of around 18 volts (that is about what I recall). The actual power draw is 150 x 18 = 2700 watts! So your 350 amp welder may be able to draw say 6 KW or so, but it won't unless you try making huge welds in one pass. I had a 3 phase 400 amp Tig welder that I ran on a 20 amp 220 volt circuit breaker with no problem, except when I needed the 400 amps.
Another important point. Welders have duty cycles. The Lincoln AC 225 amp AC buzz boxes had a 20% duty cycle. You could weld all day at 225 amps, as long as the welding time of each weld was 2 minutes or less, and you waited 8 minutes until the next weld. At lower currents the duty cycle increases proportionately.
Final point. Circuit breakers have duty cycles. A 20 amp breaker should never trip at 20 amps. At 25 amps it will typically take 1/2 hour or more to trip. At 30 amps it will take almost 5 minutes to trip. At 40 amps it will take maybe a minute to trip. At 60 amps it will take maybe 20 seconds to trip. So welders can often be perfectly usable when connected to circuits that would appear to unable to handle them.
I've never tried running a welder on a rotary converter. My suspicion is that it would work just fine. The first step in a mig welder is stepping the voltage down and the current up through a transformer. The second step is converting it all to DC through a diode bridge. I seriously doubt it cares much about phase relationships. I used to do welder repairs. I've never seen a three phase welder with a 3 phase cooling fan, they are always single phase anyway, and taken off of a control circuit. So it would be well worth a try.
Gary H. Lucas
Reply to
Gary H. Lucas
I asked my welding machine guy about dropping a leg and seeing if it would run on single phase. He said it would not work, to not even bother to try it. I claims it will work sometimes with inverter machines but not with transformer based ones, or at least it was implied.
Ill have to try it I guess. Its one hell of a machine and its head and hands better than my old Dan-Mig 140/200 which only has 6 positions for welding power. Ive already run into situations where I need something in between.
I rather suspect that my 5hp rotary converter may not handle very much power, nor do I know how to calculate exactly how many amps it will supply properly. Got any idea of the proper formula? Or the solution?
Ive popped the 50 amp single phase 220 breaker a couple times with my Lincoln tig 250/250 that I recently rebuilt while running stick,
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but I suspect my breaker is getting tired. Its about 20 yrs old now.... It handles the Dialarc 250 pretty well up to about 150 amps for fair amounts of time...several sticks worth but its starting to kick out sooner and sooner.
I really need to get out the amp meter and start checking idle current and whatnot. The meter does spin noticably faster when I simply turn on the Lincoln or the Miller dialarc..and really fast when I strike an arc......sigh
Many thanks Gary.
Gunner
"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown
Reply to
Gunner
"They" wouldn't be amused...but the rest of the country would be laughing all over the place when you made the national newswires!
bill
Gunner wrote:
Reply to
Bill Martin
But think of all the free power a person could get before they caught up with em.
Gunner
"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown
Reply to
Gunner
Planning on trying this dropping one leg thing on one of those ESAB 400A inverter machines that I had picked up at auction a couple years back..
Someday....when I find time.....
If / when it actually happens, I promise I'll get back to you and let you know whether it works out.
Reply to
PrecisionMachinisT
I really hate to respond to this.
The Airco Pulse Arc was really a bad machine.
Don't get me wrong. The thought and engineering was of the latest at that time, but something got lost in the manufacturing.
Parts are not easily available. And it needs three phase power.
Good Luck
brad
Reply to
brad
Thanks for the heads up Brad. Much obliged
Gunner
Lathe Dementia. Recognized as one of the major sub-strains of the all-consuming virus, Packratitis. Usual symptoms easily recognized and normally is contracted for life. Can be very contagious. michael
Reply to
Gunner
Oh..I should mention that Ive run at least 2lbs of wire (.035) through this machine off a 5hp rotary converter. Works fine.
Shrug
Gunner
It's better to be a red person in a blue state than a blue person in a red state. As a red person, if your blue neighbors turn into a mob at least you have a gun to protect yourself. As a blue person, your only hope is to appease the red mob with herbal tea and marinated tofu.
(Phil Garding)
Reply to
Gunner

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