Sheet Metal Equipment Questions

Dave Just a thought, you have that big Lincoln welder, is it possible to use it as a power source for a set of spot welder tongs? I realize that there would have to be some circuitry in between the two but is such a device commercially available or does the spot welder have to be its own machine? lg no neat sig line.

Used American spot welders are cheap enough at auction, private sale or even on ebay. Why bother with Chinese stuff in this case?

Larry... I don't think that would work. A spot welder uses a much higher current at a much lower voltage.... in the many hundreds of amps range. Enough to heat a 5/8" solid copper bar VERY hot.

P.S. The equipment used to be mine.

Mark

Hi,

Yes, I do realize how lucky I am. The guy I bought the equipment from is the same guy who basically taught me how to use it and let me use it (along with other equipment) at his shop. I have been looking for equipment like this for about 3 years now, and I just feel "lucky as heck" - and appreciative for my buddy Mark.

Thanks for the reply.

Dave

Hey Mark,

I do think that you are right, although I saw something on eBay where a person could use a welder as a power supply for a spot welder. I'm not too sure how well it would work. I'm just happy as a pig in mud with the stuff - thanks!

Dave

Mark,

I forgot to ask - in your opinion, is there significant differences between the 220V and the 110V welders? I know that the 220V welders are rated for something like 3/16" and the 110V welders are rated for 1/8", but I'm not too sure how to relate that to real functionality. I believe that your spot welder is 220V and that this has pleanty of power for all of my use thus far. I see the Miller 110V welders on eBay all of the time but rarely the

What do you think?

Dave

Personally, I would not use a 110 volt unit unless it was given to me and I had nothing else to use. The duty cycle will be lower, the capacity is less, and it is hard enough to get good spot welds with a hand held unit to begin with.

Mark

M Don't most spot welders have a capacitor bank that is charged then dumped into the load for the spot weld. It would seem to me that someone would have a control box with caps that would use a standard welder for power to charge the caps. Don't know that to be fact just seems like a workable idea that may be out there. lg

Google DiAcro and you can down load their manuals. Don't touch the shear adjustments and sharpening until you have read the manual.

Chuck P.

As "M" said, the current is much higher and the open-circuit voltage much lower for a spot welder. About an order of magnitude different, so it wouldn't be the same transformer (the secondary winding, in particular would have far fewer turns and would be much heavier).

Best regards, Spehro Pefhany

Thank you I have learned something today. lg no neat sig line