Welding.farm
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Sorry I did it on my phone but if you have the answer it would be appreciated pal
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RonMig
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Online advice on weld cable size seems to vary depending on where you look...
And bearing in mind, not all cables/suppliers are equal...
The R-Tech site says their 25mm² is good for 180A, and 35mm² is for up to 200A.
Our forum sponsor WSD site says their 25mm² cable is good for 200A.
I'd go with WSD (click link top right) as there might be a forum member discount (not used it yet so not sure if it applies to weld cable...).
Others suppliers are available...
And bearing in mind, not all cables/suppliers are equal...
The R-Tech site says their 25mm² is good for 180A, and 35mm² is for up to 200A.
Our forum sponsor WSD site says their 25mm² cable is good for 200A.
I'd go with WSD (click link top right) as there might be a forum member discount (not used it yet so not sure if it applies to weld cable...).
Others suppliers are available...
That's excellent news. Well done.
I've wired mine up with 1.5mm² HO7 rubber cable for the mains feed, and some random cables from my welding goodies box that for the leads. Remember a thicker cable will be heavier, so you might not want to be lugging around yards of 35mm² if you're only doing carbon brazing or 100A welding. A longer cable will suffer from measurable voltage drop at higher currents, so don't use a tiddly one for a 10m lead on. The thicker one keeps the resistance low, and remember the circuit is made between welder, torch, workpiece, clamp, and back to the welder so the total current path is both lead lengths.
I've wired mine up with 1.5mm² HO7 rubber cable for the mains feed, and some random cables from my welding goodies box that for the leads. Remember a thicker cable will be heavier, so you might not want to be lugging around yards of 35mm² if you're only doing carbon brazing or 100A welding. A longer cable will suffer from measurable voltage drop at higher currents, so don't use a tiddly one for a 10m lead on. The thicker one keeps the resistance low, and remember the circuit is made between welder, torch, workpiece, clamp, and back to the welder so the total current path is both lead lengths.
brightspark
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1.5mm feed is a bit thin. rated around 16 amp ish i have 2.5mm on mine. should be 4.0mm by rights for 30 amp but never overheats using 2.5
Sorry pal, I was on the way out to work.
Assuming you mean the supply cable I would suggest 2.5 flex would be fine, unless you intend running it continiously flat out?
Welding.farm
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Sorry I did not word it well it's actually the welding leads that were damaged beyond repair. What size would you recommend? It's a 180 model I have
Thanks
Welding.farm
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It's the welding leads that need replacing sorry if I did not explain it well.
25mm seems a lot bigger than what it came with so I just wanted to check it looks like it had the original leads and they were 16mm or close to that.
What do other people have on there 180a welders?
25mm seems a lot bigger than what it came with so I just wanted to check it looks like it had the original leads and they were 16mm or close to that.
What do other people have on there 180a welders?
brightspark
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have 25mm on mine about 10 meters long . saves moving the welder round
Trust me.
A lot of Welders 140 -180 amp come with under sized cables.
25mm or larger prevents eventually having to replace connectors and earth clamp crimp.
Smaller cables usually fry at earth clamp.
Make your earth lead 1.5 to 2 meters longer than your tourch lead.
Tack at bit of scrap plate to your clamp.
When it gets soiled, replace.
So over customers clamps weighing 5 plus kilos.
A lot of Welders 140 -180 amp come with under sized cables.
25mm or larger prevents eventually having to replace connectors and earth clamp crimp.
Smaller cables usually fry at earth clamp.
Make your earth lead 1.5 to 2 meters longer than your tourch lead.
Tack at bit of scrap plate to your clamp.
When it gets soiled, replace.
So over customers clamps weighing 5 plus kilos.
brightspark
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i have a scratch plate bolted to the mole grips return clamp. always start to burn the rod on it before i weld the job
It would depend on the length of your leads but 25mm2 would be ok for shortish leads up to 4m. Any longer I would suggest 35mm2 but on your electrode lead make the last 2m from 25mm2 connecting them up with a dinse connector. That will mean there's less weight on your hand when welding.
Whatever you use make sure its proper rubber covered welding cable & not the cheaper pvc covered battery cable.
Hello - I've got a Bantam that has worked well for many years. It now trips breaker every time it is switched on. I've tried swapping to type B breakers and they still trip.
I took lid off yesterday but, to be honest not sure what to look for. One think I did notice was that oil level looked low. Did a rough calculation and think there is 3.9 gallons in it. Plate on top says refill with 4.5 gallons. Could low oil level cause tripping?
Cheers. I made mistake in my post. I swapped from B to C.
brightspark
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what size breaker did you put in ,mine has a 32 amp b type and it takes that out most times just switching on ,should change it to a c type realy
brightspark
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