Mig Welder options

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Armourguard
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Mig Welder options

Post by Armourguard »

What Mig Welder do you guys use :?:

or what size or make would you suggest (single phase) just for work on the Cruiser and light farm work :D
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coxsy
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Post by coxsy »

go to a engineering supplies shop and buy one stay away from the cheap ones don't last the more you spend the happier you be with it around the $1200 up line
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SupraLux
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Post by SupraLux »

I use a Cebora Stag - cost around $1400 when I bought it I think... done everything I have asked of it and even done the odd thing I hadn't asked for (like melting small holes in my flesh :P)

I'd recommend it although I know some people don't like them... another good bet would be the UniMig workshop series...

Steve
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alvis
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Post by alvis »

I just brought a Cebora Bravo 155 for $1000, which was with good discount. I have never welded before but after an hour or two of practice I was welding plates in the cruiser and it seems to do the trick. My brother has the Cebora 130 and loves it.

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Post by kiwipete »

Are you guys welding with or without gas?
What are they like to use without gas and using the flux wire?

Considering updating my severly out of date arc welder when the shed is built.
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alvis
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Post by alvis »

I have only been doing it for two weeks but the flux stuff it came with dosn't compare to how good it is using gas.

Cheers - Al
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Post by SupraLux »

kiwipete wrote:Are you guys welding with or without gas?
What are they like to use without gas and using the flux wire?

Considering updating my severly out of date arc welder when the shed is built.


I used to use gasless wire, but when I got the new Cebora I went to a gas bottle (about $12/month rental and the bottle is around $25 to fill - lasts ages). Once I got the settings right with gasless it actually welded quite nicely but nowhere near as nice as CO2 gas... and I did run one bottle of Argoshield (about twice the price - amazing finish on the weld, but not quite the same penetration).

Also with gasless the weld is quite 'dirty' and if you try to weld over it with gas-mig later it pops and farts and makes a mess...

Steve
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Post by kiwipete »

Thanks Steve. Looks like I will also need to look into getting a gas bottle too.
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Post by spanky »

ALOT OF IT WITH A MIG IS THE SETTINGS . I USE BOTH A ELECTRA BECKAM $2500 AND A TELWIN $1600 AT MY BUISNESS AND BOTH ARE GOOD, I ONLY USE MS2 ARGO SHEILD GAS .IF YOUR PENERTRATION IS NO GOOD BUMP UP THE POWER OR SLOW YOUR SPEED DOWN , I WELD STEEL FROM 0.8 TO 8MM GOOD AS GOLD WITH 180 AMP WELDER. CHEERS VAUGHAN
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Post by SupraLux »

spanky wrote:ALOT OF IT WITH A MIG IS THE SETTINGS . I USE BOTH A ELECTRA BECKAM $2500 AND A TELWIN $1600 AT MY BUISNESS AND BOTH ARE GOOD, I ONLY USE MS2 ARGO SHEILD GAS .IF YOUR PENERTRATION IS NO GOOD BUMP UP THE POWER OR SLOW YOUR SPEED DOWN , I WELD STEEL FROM 0.8 TO 8MM GOOD AS GOLD WITH 180 AMP WELDER. CHEERS VAUGHAN


Slowing down with MIG can actually reduce your penetration... you need to keep the wire ahead of the weld-pool... squirting wire into the pool causes it to melt before it penetrates.

And bumping up the power is a bit vague... volts or amps? And you also need to be careful when doing that because the current can cause the wire to start melting before it gets to the weld itself... which also reduces penetration.

You are right with one thing tho, it IS all about the settings... welding is an art and a science.

Steve
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welder

Post by coxsy »

my mig at work 400 amps, stainless, ali, and if something piss me off bump it up to spray arc,sorry have run this mig for near 12 years its 500 amp
Last edited by coxsy on Tue May 01, 2007 9:27 pm, edited 1 time in total.
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Re: welder

Post by SupraLux »

coxsy wrote:my mig at work 400 amps, stainless, ali, and if something piss me off bump it up to spray arc,


I dream of 400A sigh :)

Still my 170-ish amps glued the MU together... and it never fell apart :P

...it also glued Riks truck, Conans truck and quite a few other trucks together... and to the best of my knowledge none of them has fallen apart either...

...but still... 400A sigh... it would be nice to blow holes in thick plate steel with my welder - just because I can :P

What sort of work are you doing with yours Coxsy?


Steve
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Post by oldblue »

To keep your cost down, as I have, being a hobby welder, ex welder boilermaker,Ive got a 50 cf dive bottle then fitted it with a CO2 valve Tap.
No hire charges on the bottle each month, and about $25 to $30 to fill.
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Post by DieselBoy »

Got a 120a MigStar. Cheap and nasty, but does the job, usually under $1000 retail from Repco, (paid $500 staff price). Its gass capable, and am in the process of sourcing a regulator to set it up for using gas. Have always used flux cored wire, it works, but is not pretty or very user friendly and bloody expensive ($25 per .4kg role).

Regulator and argo sheild bottle to set up for gas $48 :P
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Post by swampa »

i just use an arc welder to tack things together, then get someone i know to weld things up, i do this for 2 main reasons,1 it has taken me years to get a half decent weld, but not one that i could trust my life in, and 2 there is heaps of guys in the same sport that can weld and if i multiply the cost of beer as compared to buying a mig welder, beer wins
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Post by ruf_zuki »

Also with gasless the weld is quite 'dirty' and if you try to weld over it with gas-mig later it pops and farts and makes a mess...

Steve


you sure your chipping the slag off before welding over top? just like you do with a stick welder
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Post by SupraLux »

ruf_zuki wrote:
Also with gasless the weld is quite 'dirty' and if you try to weld over it with gas-mig later it pops and farts and makes a mess...

Steve


you sure your chipping the slag off before welding over top? just like you do with a stick welder


Yep, I even found grinding the weld out didn't help much... and it was even worse to arc over... I just avoid gasless now...

btw, hows your truck going? long time no see...

Steve
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Post by ruf_zuki »

hmmm thats weird , i must ask about that...

havent done much with the truck, lack of funds doesnt help
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welding

Post by coxsy »

welding is my job a little list for begineer welders
buy a good helmet to go with the mig toss the hand held if you can get a auto darking one cuts the flash plus you can hold the job and then tack it without burning fingers or eyes
wear old clothes, overalls even better
leather shoes or boots
long welding gloves a yellow hot spatter in there is not fun
steel melts at 1600 c does not like that heat, those spatters are nasty in your hair, ears, between fingers, toes, had one burn throught the overalls jeans in to the jocks your never fast enough ,
fumes really bad for you life , have venterlation
fire ext, on hand spatter can travell far ,
keep kids, animals clear
no bare skin the uv is high off the arc stronger than the summer sun
get anti spatter or mig dip spray or coat the nossle helps keep the nossle cool and it will weld better too
a good run sissles like a steak with no put puts in it
keep the wire short when welding move quickly
if thin steel you can weld with short bursts or pull the nossle back run a long section of wire it still welds at a slower rate and lower power put you can weld were the nossle will not reach
may post more when i think of it
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Post by mike »

hold your breath, when i breathe my hand moves :lol: :lol: :lol:

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De-Ranged
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Post by De-Ranged »

I run a 210 liquid arc, maxmig... and to be frank I wouldn't buy another my old maximig 160 (dad has it now) could do almost everything this one can and is more adjustable
Overall the 210 is a solid welder hell I've abused the crab out of it, pushed its duty cycle beyound what its sposed to run at, and I've welded some very serious stuff, nastyest was layered welds on a 50mm section and due to short time line I ran at full snot at twice the rated duty cycle :shock:(only stopping to flick the fuse jumper back on in the sheds meter box 8) )
For those that don't know what I'm talking about, any decent welder should come with a chart telling you how long you can run the machine at the set amperage (that way you don't cook anything in the welder 8) ) a good welder will be looking at around 60 to 80% at full amp rating, this means for every ten minutes you can use it for only 6 to 8 min's, crap welders I've seen figures as low as 24% thats only 2 and a half min's of use every 10 :lol:
My beef's with this welder is its lack of adjustability adjusting the amperage and wire feeds hell even changing wire size dosn't have that much effect, I have to use the techneque coxy's talking about, pulling the handpiece back from the work and stop starting to control heat, the other thing that annoys me is the single wheel drive, my next one is definitly going to be 2 wheel drive!!

My suggestion find some options that are in your price range and then ask here to see what people think and just becouse its cheap dosn't mean its crap "trade tools" sell chinese welders that have alot of top features, warrenties and good price

My opion for what its worth go as big as you can aford, power is one of those things, if you don't have it you'll wish you did :roll: don't worry about infinite adustability you can compensate for this with techneque, don't worry about fancy features like alloy welding (untill you know what your doing its way cheaper getting it done :wink: ) and don't buy a gassless only welder, once you weld with gas you'll not bother with splatter wire unless you need to weld in wind :wink:

Cheers Reece
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Post by rowinz »

Great thread - nice to hear from others how things are done, especially those that weld a lot.

I have two cheap welders, one $300 or so gasless mig from Repco (100A I think) - bought for body work...took a while and a lot of stop/start and very low duty (about 20%). Had to replace the wire feed sheath with nylon air tube, and the feed still stalls if gun lead bent too far. Oh and wire tip is constantly live - can surprise you and cause the odd wee fire if you put gun down in the wrong place. But only $300.

It is good for what I need it for. Got wire from Independent Welding Supplies, 1kg spool for about $30, so not as expensive as has been mentioned here. That seemed to weld better than the spool that originally came with the welder. Gasless does spatter to hell. I only buy consumables from welding places. Not sure if quality differs, but they deal in it day in day out.

Other welder is an Arc for thicker stuff, $400 odd (160A), basically for thicker stuff, but not too thick. Ratings says it can use 3.2mm rods, but I wouldn't push it that far.

Now I am not a very good welder, but have accidentally laid the occassional nice weld...just don't do it enough. A great deal depends on what you need it for. For real heavy welding or structural stuff, I'd definitely outsource.

My 10c worth...
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Re: welding

Post by SupraLux »

coxsy wrote:long welding gloves a yellow hot spatter in there is not fun
steel melts at 1600 c does not like that heat, those spatters are nasty in your hair, ears, between fingers, toes, had one burn throught the overalls jeans in to the jocks your never fast enough


Hehehe... yep, I've had weld splatter give me a bad burn between two of my fingers before... one of the most painful and 'orrible burns I've ever had... right on the web. Every time I spread my hand out it would open the wound again so took ages to heal...

Good list there Coxsy... mostly things you learn the hard way by experience... although its better to have them listed out for you before you start...

one other thing.... NEVER NEVER NEVER weld in your wifes good polarfleece jacket :lol: Don't ask me how I know :P

Steve
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Post by De-Ranged »

Or gumboots :shock: trust me you'll never get your foot out without burning it to the splatter :lol:

Noticed polarfleese works well with the grinder too :roll:

Cheers Reece
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Post by motivated »

To use gasless with a Cebora I think you will find you get a very good weld (same as if using gas) if you change the terminals around, on the welder put the pos onto the neg and neg onto pos, change it back when using gas. Check with the agent first as I'm not claiming to be a smart fella and will not be responsible for one idiot following another and stuffing his welder.

I purchased my stag for $750 and love it.
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coxsy
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my mig

Post by coxsy »

not a good shot of anything but my work area and the big mig + 4wd pics on the wallImage
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SupraLux
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Post by SupraLux »

I sooo want to build myself a fabrication table like that... I dream of a 1/2 sheet of 50mm plate on a huge-ass frame with big old castors under it for moving it around...

Thats a nice workspace... well lit, unlike so many engineering workshops...

Steve
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Post by Engineer »

SupraLux wrote:I sooo want to build myself a fabrication table like that... I dream of a 1/2 sheet of 50mm plate on a huge-ass frame with big old castors under it for moving it around...

Thats a nice workspace... well lit, unlike so many engineering workshops...

Steve


Our Fab shophas afew benches in it but my main i use is 50mm plate and its very big. fit atleast two an half surfs on it lol, we tried to move it the other day and our 4ton forklift didnt even look like moving it, had to get the big 12t out 8)
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coxsy
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shop

Post by coxsy »

its well lit now, when i first arrived a dark place, new skylights ,16 ovr head lights , new sheeting in the wall tops , we own the shop not leased , its a little small with 10 guys in there but we get by
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SupraLux
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Post by SupraLux »

Oh, another tip for MIG... a gap between the two bits of metal can help the penetration... gives the wire somewhere to go and fill rather than just melting into the surface...

A welding FAQ for MIG Arc and TIG might be a good thing for the forum... help getting guys up to speed for glueing stuff together on their trucks... Maybe they can be compiled from threads like this and vetted by the engineers amongst us? With the appropriate disclaimers of course :P

Steve
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