What type of rod?


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Old 04-20-07, 12:07 AM
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Question What type of rod?

I have an old Sears Craftsman A/C arc welder from the 70's it is a 180Amp, although I have been told on 220 in a house it will not get the full voltage, but it works well, but it does not seem to like 7018 rods, are they not suitable for these machines, and what are the better rods to try and in what sizes?
I tried some from a company up here called Arctec #222 and they don't seem too bad, but I remember other numbers from school but that was over 34 years ago.
Any suggestions?
I believe these were called buzz boxes too.
Thanks.
 
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Old 04-20-07, 05:43 AM
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I've always heard the little 110 volt welders referred to as 'buzz boxes'

Have you tried any 6013 rods? I think they are supposed to be the all purpose rod. You could go to your local welding supply co. and ask them what would be the best rod for what you need to weld.
 
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Old 04-20-07, 02:08 PM
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If you buy 7018 rods for your welder, make sure the #'s on the rod say 7018AC. 6013 is a good choice for this machine. 1/8 inch also or whatever that converts to in mm.
 
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Old 04-21-07, 05:31 AM
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For most purposes, 6013 on clean steel and 6011 on the rest in the 1/8" size. Run at 100-130 amps on AC. 6013 has moderate penetration and 6011 has significant penetration.
 
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Old 04-21-07, 09:10 PM
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Your machine should run a 7014. It will not run a 7018. 7018 is AC and DC reverse polarity. The cheap 220 AC welders will not run the 7018 electrodes. The expensive AC machines will run a 7018. I feel the best rod for your machine is the 6011. That rod is all position, poor fit, dirty metal, just an all around good electrode. 1/8 rod will run at 80 to 100 amps, 3/32 rod will run as low as 40 amps up to 60 amps. That will vary depending on your machine. The 6013 I feel works good on sheet metal, it does not bite in very well. Buy good rod like Lincoln, Hobart, ESAB, don't buy the junk rods and you should have problems.
 
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Old 04-22-07, 12:54 AM
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Thanks for the replies, I guess I should stick with 1/8 and 3/32, will mine take anything bigger than the 1/8" or is that the limit for a 180 amp A/C?
 
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Old 04-22-07, 04:17 AM
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Cool welding

I do remember that the rods need to be dry and free of moisture...
 
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Old 04-22-07, 06:25 AM
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I have run 5/32" rod at 145 amps on a 100% duty cycle 210 amp engine drive. We started at 155 amps but that was too hot for the rod (6011).

It is likely that the buzz box is a 60% duty cycle machine, so 1/8" is a good choice as well as being very available. I had to go to a welding supply store for the 5/32". We were working with 1/4" wall thickness pipe. The larger rod will put more heat into the joint as well.

When (not if) you burn a hole in the metal, you will need to dial back to 80-90 amps in order to fill the hole without making it bigger.
 
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Old 04-24-07, 12:17 AM
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Thumbs up My machine

Here are pictures of my welder.
180 amp


 
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Old 04-24-07, 06:09 PM
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Partsman look at the front of your welder where the arm moves and shows your amps. The decal under the arm tells you what size and type of rod to use for any given amps.
 
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Old 04-25-07, 10:49 AM
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rods

You can find several charts on the net that will give you good starting settings each rod. These charts list the polority as well as give you a suggested amperage range. I'd try doing a search or visit Lincoln, Miller, hobart or AWS web sites for this sheet. I have one taped to the side of my welder...comes in handy.

regards

metweldeng
 
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Old 04-25-07, 02:55 PM
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Well went and bought some welding rod today, little place I dealt with did not have any 7024, so I took some 7014 in 1/8"(3.25mm) from Air Liquide Blueshield says 130 Amp optimum, not too sure if that is really right.
And I got 7014 in 3/32" (2.5mm) that is US Forge brand premium stick electrodes and they say to use 80-125 Amps, but not an optimum setting.
So I guess we shall see how good these are.
The 5kg/11LB 1/8" cost $20.19 CDN befor taxes
and the 5LB 3/32 ran me $14.95 CDN.
 
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Old 04-25-07, 03:43 PM
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Well I sure like working in this outfit, one of our welders I had talked to the other day, just gave me an almost full box of 6013 3/32" rod he had in his truck, they say 70 amp is optimum for them according to the box.
So this is nice of him to come up with some more for me to try.
 
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Old 04-26-07, 07:18 PM
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7018 ac...1/8 but better with 3/32 will run and weld just perfect for your machine309 for stainless 3/32 will also burn very nice for you...remember with the small amp welders you need alot more fineness and skill to get the job done ..practice ,practice...
 
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Old 05-18-07, 07:10 PM
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Your house has 240V, not 220V, and these machines run just fine from house voltage.

It probably has a 20% duty cycle, but that's usually rated at it's max output anyway, so you never really have to worry about it with Stick machines on most jobs.

I agree that 7018AC will still be difficult on this machine. 6011, 6013, and 7014 are good choices.

A "buzz box" is a general term for a cheap AC welding machine, even the 240V models like the Lincoln AC225, Miller Thunderbolt AC, and Hobart Stickmate AC versions.
 
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Old 05-21-07, 11:05 AM
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Thumbs up Which rod to use

Hey partsman. Check it out. I did some serious welding surgery on a Cat track hoe undercarriage with a Lincoln AC buzz box. I used 1/8 6011 for all root passes and a 7018 that was specifically designated for AC use. That was a first for me with only acess to the Buzz bx, but that AC7018 saved the day it was on a scale of 1-10 a 9 in comparison to a DC machine with regular 7018's. Vertical weave was a little different but easy to adapt to because of AC polarity. I have a Lincoln AC/DC Ranger 250 GXT and love it. I used the other guys buzz box because it was there and my Ranger was at home.
 
 

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