[Jason_alex]

I was hoping to see a magnetic welding clamp used and see how you like the grounding from it, I know that you always talk about how important a good ground is. I think it could be nice for welding tabs onto pipes instead of having to wrap braided wire around the pipe for ground.

Something like this maybe.
http://www.youtube.com/watch?v=bArj-wcqL7o

Thanks,
Jason

[AKweldshop]

I'm gonna haft to get one of these for sure awesome dude
http://www.youtube.com/watch?feature=pl ... tgLYmz_hRM

[Jason_alex]

I am shocked the on/off 300 amp clamp is just $36 bucks from cyber welt good for 300 amps

[tradetek]

New here, but this is one of the few useful purchases I have made from Harbor Freight:

http://www.harborfreight.com/magnetic-g ... 30754.html

Pain to get off of flat surfaces, but comes off round ones easy as pie. Think about putting an 1"x1/8 flat bar on it as a handle.

One of the pluses is that it has an exposed brass bolt to attach my regular clamp to, so I don't have to hardwire a grounding cable to it.

Bill

[AKweldshop]

New here, but this is one of the few useful purchases I have made from Harbor Freight:

http://www.harborfreight.com/magnetic-g ... 30754.html

Pain to get off of flat surfaces, but comes off round ones easy as pie. Think about putting an 1"x1/8 flat bar on it as a handle.

One of the pluses is that it has an exposed brass bolt to attach my regular clamp to, so I don't have to hardwire a grounding cable to it.

Bill

I got one of those, and yeah, hard to get of plate and sheet stuff.
But the grinding and drilling particles, man what a mess
these on off one are a great improvement.

~John
Welcome to the forum

[coldman]

Does anyone know if these ground through a painted surface? eg pipe

[AFSATCOM]

Does anyone know if these ground through a painted surface? eg pipe

No they won't. It'll stick but it won't conduct. Best case scenario you get no arc. Worst case, it arcs through the paint.

[Mike]

Welcome to the forum Bill.

[tradetek]

Thanks for the welcome.

I use a small wire brush over a trash bucket and quickly sweep it over the magnetic edges/surface to get the shavings and whatnot off. Seems to work pretty well, but does take a few minutes to work through half a dozen magnets.

Bill

[Arizona SA200]

I haven't had much luck with them. They get hot and the magnet comes out on the ones i have used. Granted i have only tried the cheap ones but the high dollar ones are really high dollar for a ground clamp.

[mcoe]

Darn you all. Now I want one of those. I have seen the magnetic grounds at Tractor Supply and thought about how many times I could use one and then you go and post one with on and off like that and now I want one.

[Otto Nobedder]

Now, if only they'd make one that sticks to stainless...


Steve S

[Wes917]

I'll keep with the strap wrapped around pipe. The magnets are good for flat surfaces if they have an on/off so they don't get full of grit. I don't like them because they seem to always leave scratches/mal marks and that is unacceptable.

[Jason_alex]

True I think I will stay away from them in my applications too because if they get hot they are not grounding good.

[Arizona SA200]

Have you ever looked into a pipeline style ground? They are hideous looking abortions but they work. A little bit of silicon bronze on the contact tip makes for a good ground.