- Thread starter R Kraft
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shenion
Tool Pack Rat
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Yes, they are popping up more often on ebay from box movers.
Apparently gasless will work on AC, Then again, these chokeless welders will have little penetration/fusion and lots of spatter, so are completely useless other than a way to take someones money.
If you see one post a link. Ive never seen one, the only AC MIG welder I have ever seen is very complex job for a particular special application. Cost thousands.
malcolm
& Clementine the Cat
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Here you go Al - eBay Australia is full of the things. Look at the spec plate - AC output:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=270397928620
Compare to a DC output one:
Wish people wouldn't buy the cheap and nasty ones. They are difficult to use (the one in the link would be impossible) and they tend to make people give up welding.
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=270397928620
Compare to a DC output one:
Wish people wouldn't buy the cheap and nasty ones. They are difficult to use (the one in the link would be impossible) and they tend to make people give up welding.
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Here you go Al - eBay Australia is full of the things. Look at the spec plate - AC output:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=270397928620
Compare to a DC output one:
Wish people wouldn't buy the cheap and nasty ones. They are difficult to use (the one in the link would be impossible) and they tend to make people give up welding.
Something I've noticed, look at the minimum current on both machines, the AC one is 60A, the DC one is 35A.
Could that explain why other cheap migs have ridiculously high minimum current settings too?
Are they really AC? or is the plate wrong (we have had the PREQUENCY / PERK current episode)
It says its a MIG MAG welder which it clearly isnt
Im sceptical but it obviously says AC and there doesnt appear to be much voltage control (2 steps?)
Are they being sold over here (UK)?
It says its a MIG MAG welder which it clearly isnt
Im sceptical but it obviously says AC and there doesnt appear to be much voltage control (2 steps?)
Are they being sold over here (UK)?
rtbcomp
Moderator
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In post 31 you say "........sizeable choke/reactor in addition to the main transformer, rectifier........"
Post 35 seems to say 40v OCV 50 Hz, but the small logo in the top left shows a half-wave rectifier.
I'm confused, if the output is AC it wouldn't have a rectifier & choke inside.
Post 35 seems to say 40v OCV 50 Hz, but the small logo in the top left shows a half-wave rectifier.
I'm confused, if the output is AC it wouldn't have a rectifier & choke inside.
malcolm
& Clementine the Cat
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Sorry, we drifted off topic a little there - I'll attempt a tidy up. Here we go - new thread. Posts moved from an Aldi/Powercraft thread (which does indeed appear to be DC output).
Those Aussie eBay ones really are AC! Much cheaper to make when you miss out the rectifier, choke, and much of the circuit board. Nobody who buys them will ever use them so no matter.
I think I've seen them on UK eBay. Also didn't Screwfix have one last year?
Those Aussie eBay ones really are AC! Much cheaper to make when you miss out the rectifier, choke, and much of the circuit board. Nobody who buys them will ever use them so no matter.
I think I've seen them on UK eBay. Also didn't Screwfix have one last year?
If you go to the Cemont/liquid air site, on page 44 of the pdf is a schematic.http://portal.airliquide.com/P_Doc/view.php?base_id=32&doc_id=287&version=0&file_id=1
A Easymig 105.
Robert
Couldnt log onto that link
I found an EASYMIG 105 on google
http://www.kende.com.cn/english/Products.asp?Id=651
I am getting confused..........this one is DC (or so it says)
I found an EASYMIG 105 on google
http://www.kende.com.cn/english/Products.asp?Id=651
I am getting confused..........this one is DC (or so it says)
There are at least 2 models of the things, this link is the same as the cemont.
Schematic is on page 22.
http://www.harborfreight.com/manuals/98000-98999/98871.pdf
Robert
Schematic is on page 22.
http://www.harborfreight.com/manuals/98000-98999/98871.pdf
Robert
Here you go Al - eBay Australia is full of the things. Look at the spec plate - AC output:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=270397928620
Compare to a DC output one:
Wish people wouldn't buy the cheap and nasty ones. They are difficult to use (the one in the link would be impossible) and they tend to make people give up welding.
Have not seen any of these here
Kiwis might be buying them all up
I have to admit i have one of those DC migs linked in this thread. for the $300 AUD paid, it has worked remarkably well.
I took a spin on a friends WIA 175 a few weeks ago, other than the more finely adustable power the welds on 1.6 and 3mm mild steal had no real difference.
Sure the cheap thing is going to konk out well before the WIA but for me it did a great job putting some garden bed frames together, and unlike the mma, no blow through on 1.6
I took a spin on a friends WIA 175 a few weeks ago, other than the more finely adustable power the welds on 1.6 and 3mm mild steal had no real difference.
Sure the cheap thing is going to konk out well before the WIA but for me it did a great job putting some garden bed frames together, and unlike the mma, no blow through on 1.6
mishka
Is it me?
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DazzlinDave
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I have one! Chicago Electric, sold at Harbor Freight, made in China. They do suck enormous bags of Moose ****!! I hate it!! But it works halfway acceptably and I don't care if it gets rained on (paid $80 used on eBay). I don't have shelter here yet, have it in a plastic rubbermaid bin. I have a Millermatic B210 in storage until I build a workshop in my new place. Here's a link to the manual of this POS Chinatown Special. On page 13 the schematic shows diodes which don't exist and I verified with a meter that is is indeed AC out!! In addition to that the min/max switch only switches taps on the primary side of the transformer to offer a useless 80-90 amps output... too cold to weld plate and too hot to weld sheet!! How useless is that??? As I said I'm trying to make due till I get my sweet Miller here, with which I once successfully welded (quite nicely I'll add) both ends of a piece of .030 wire to an empty 14oz. propane can (empty and well purged of course!). I do metal art http://dazzlindave.com if you're interested to look. Another thing that makes this little machine worthless is the fact that it has no fan and a 10% duty cycle!! At full power it would kick out after 5min and take 15-20 to come back!!!! I added a 5" fan in the back and wired it into the switch. I can run nonstop for 30min or more now. My next reluctant projects will be to add a rectifier and some sort of voltage control, such as a 20a router speed control on the primary side of the transformer and hope it doesn't cut too much out of the motor torque. Also a steel cable hose liner to replace the plastic piece of crap they put in there... YES they used a plastic tube for the wire to feed through to the gun!!
Miller welders have a 100% duty cycle!! Rated to run wide open all day long! Most good machines I've seen are rated at 60% duty...
Miller welders have a 100% duty cycle!! Rated to run wide open all day long! Most good machines I've seen are rated at 60% duty...
