Inverter TIG machines

I have the Everlast 256 4-1, 3 phase, and a 5 yr warranty, it stopped plasma cutting after about 6 weeks, but the distributor went out of their way to help me, they picked it up at their cost and returned a new one to me as well also at their cost, within a week, about a 600 mile trip each way, prior to that, they asked me to open it up to test a few things to identify the problem which showed that there was a large resistor too close to the power bus which the HF cooked, as well as a couple of wires soldered to a joint on a circuit board had come off, a few blobs of adhesive which had dripped onto the exhaust fan which should have been cleaned off but weren't. So to sum up, I don't think that the quality control is 100% but the service from the Australian distributor is brilliant. The water cooled torch developed a leak a few months later, and they sent me a new one at no expense and I didn't even have to return the old one. This unit cost me about 5 times less than a Miller, I couldn't justify spending that amount of cash for a Miller with the small amount of use that I would use it for. The support service that I have had here in OZ is absolutely great, they even talked to me on the phone after hours and on the weekends as well. I can't even get an answer about the Miller MIG welder that I own from the Miller distributor here. A friend of mine also bought a 3 in one from them and he had a problem about 8 months later, he also had great service from them and they either replaced his unit or fixed it very quickly at no charge. So over here they look after their customers, but don't know what the service is like over your part of the world.

As for that welding site that was mentioned in an earlier post, I used to be a member but left because of a lot of very small minded ego tripping members and moderators who must spend a lot of time with their hands in their pockets, :whistle:. I only tolerate fools for a little time before my patience runs out, so I wouldn't take all that was said about this brand as totally true but you can make up your own mind about them. Nether the less, I don't think that this brand's welders quality is any better or worse than any other Chinese made unit, but the service from my point of view is great over here. Just my 2 cents worth!

Hope this helps.

Cheers

Ed.
 
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Not an expert here, but what the hey; never stopped me before! As I understand it there are two kinds of inverters; the old style (MOSFET) and the latest (IGBT). The newer is better as far as I can tell. You may see some hot deals on inverter type welders and they may not mention that they are MOSFET.
 
UPDATE!

My Powertig 250EX shipped on Monday , is expected to arrive here tomorrow . I was told they have discontinued the 225 amp unit I wanted . This machine has AC/DC , HF start , variable AC freq/balance , pulse , 2T/4T up/downslope controls with start/end amps and time , pre- and post-flow , even has a timer for spot welding . Because I told the guy my budget was lower than their asking price , he tossed in a few additional items - upgraded regulator , etc . This unit comes with a water cooled torch , and when I asked about low-amp use w/out a cooler <not in my budget> , he tossed in a used air cooled unit . I also scored a tank from a neighbor for a c-note - and it's full ! We're not certain what it's full of , but tests with my MIG suggest it's probably argon . Label says C25 , and while it doesn't weld like C25 or CO2 , but it's definitely an inert gas . Hey , even if it ain't argon , the tank alone is worth the price . I'll be starting a new thread detailing my experiences when the machine arrives , but until then ...
 
Hey Snag_one, you should like your new machine, that is the model that my friend bought, and apart from the one time his played up and got replaced, he hasn't had any other dramas and is happy with his, mine is the Powerpro 256, 3 phase and apart from the plasma cutter yours I think has the same functions. I rarely use the plasma cutter on mine so if the 256 model wasn't available I would have bought the same model as you did, although the plasma cutter has come in handy on a couple of times that I needed it. The thickest metal I have welded with mine was 3/8 stainless when I made a couple of boat anchors with it, and didn't even have it cranked up all the way. At the end of the day you have a 5 year warranty with it, so any issues and they should cover it.

I get all my consumables at a good price from this guy on eBay and haven't had any problems with their quality.

http://www.ebay.com.au/itm/28pcs-WP...10437481552?pt=AU_Welding&hash=item4847840c50.

You will still need a bottle of pure Argon or Argon/Helium for it and you can still use that bottle of gas you got for your MIG. I generally use 2% Lanthanated rods for nearly all that I TIG and they seem to last well.

Enjoy the new welder!

Cheers

Ed.
 
never say yes, or the next question is "will you teach me":headache:
 
Hey Snag_one, you should like your new machine, that is the model that my friend bought, and apart from the one time his played up and got replaced, he hasn't had any other dramas and is happy with his, mine is the Powerpro 256, 3 phase and apart from the plasma cutter yours I think has the same functions. I rarely use the plasma cutter on mine so if the 256 model wasn't available I would have bought the same model as you did, although the plasma cutter has come in handy on a couple of times that I needed it. The thickest metal I have welded with mine was 3/8 stainless when I made a couple of boat anchors with it, and didn't even have it cranked up all the way. At the end of the day you have a 5 year warranty with it, so any issues and they should cover it.

I get all my consumables at a good price from this guy on eBay and haven't had any problems with their quality.

http://www.ebay.com.au/itm/28pcs-WP...10437481552?pt=AU_Welding&hash=item4847840c50.

You will still need a bottle of pure Argon or Argon/Helium for it and you can still use that bottle of gas you got for your MIG. I generally use 2% Lanthanated rods for nearly all that I TIG and they seem to last well.

Enjoy the new welder!

Cheers

Ed.


My Everlast 250EX came at about 5PM . By ten I had successfully butt welded a piece of 1/8" X 2" leg aluminum angle back together . Welds look like crap , but there's 50% penetration and I'm as happy as a Murff . On the argon thing , I must be blessed . A neighbor had a tank <tall one , abt 5' tall> that was supposed to contain C25 . Problem is it welded like sheet with the MIG and they didn't know for sure what it was . It works just fine with the new welder ... pretty much gotta be argon . And I got the bottle and contents for 70 bucks`and a used O2 reg . I still need a few odds-n-ends , like gloves , but right now I can get by with the welding gloves I have . Got a brandynew pair of the HF 3fer gloves , bet if I tore out the liner they'd be just right .
And the best part is that my wife blessed the purchase . Her opinion is that if it will enhance my capabilities to make money , go for it . Too many people have asked me if I weld aluminum . Now I can honestly say yes . Might not be pretty ...
--
Snag
 
Ok, I've had a few beers and haven't read through every reply....

Inverters On Aluminum are the way to go. variable freq, independant amps for positive and negitave... its the cats meow. If you have a nice shiny clean piece of whatever grade of alum.... kick the balance over 80% negative and half to a quarter of the amps you are running on the positive side... and marvel at the point on your finely ground tungesten... With the same control as if you were on DC En.
Or if you have some filthy oil soaked salt water bathed casting that your buddy dragged in with a crack... ramp the positive side cleaning up as high as you size tungsten can handle and burn it on in...
Its all about control. Do you want it over your aluminum?
Hell I've heard tale of running high end super alloys on a wildly unbalenced AC current to knock away oxides the same way it does on Al... 90+% Dc En and around 5 to 10 amps on the Dc Ep side with as high as a frequency as the machine can produdce.... All the wonders you can have with an inverter...

All that and it will only pull 30 to 40 amps at 220volt single phase out of the wall... if not less. Stack that up to a big Syncrowave at full bore which is pulling 100+ amps from the wall at 3 phase.
is it worth the money? How much Aluminum do you weld and how well do you want it to come out?
Most inverters have pulse functions which make life way to easy for some joints/mateirals...

Right, Im done rambiling, forgive my spelling have a good night
 
Plasmaonthebrain,

Cheers on the beers, your comments are spot on. Controlling cleaning/penetration cycles by adjusting the ratio of -/+ and adding adjustable pulse has changed the game.

I am guilty of old school thinking on this subject when i close my mind and think i know what's going on all the time i put myself a disadvantage by becoming unteachable.

Researching around i came up with this link from miller http://www.millerwelds.com/resources/articles/Pulsed-MIG-TIG-Ideal-for-Thin-Gauge-Alloys-GMAW-GTAW.

Your clear real world explanation is very valuable focusing on the advantages of inverters, the controls they have and that they don't spin the meter too bad. Thanks

Bob
 
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