All copper ground clamp

[ericher69]

Anyone have a good place to buy an ALL copper 300A ground clamp? Checked eBay, Amazon some LWS and cannot find one. Plenty of brass or partial copper cast clamps Trying to replace the stock clamp on 252.

Thanks

Eric

Sent from my iPhone 5s 64Gb using TractorByNet

 

[haveissues]

I know it isn't what you are looking for but I just replaced my ground clamp on a new 252 with the typical curved brass one and it made a big difference.

 

[Scooby074]

Lenco. Model 300 or model 500 (500 is a bit of overkill, but it will work)

Available at Air LIquide and other LWS. Sold under the Blueshield brand and Lenco.

Great clamp. Solid bronze. Made in USA. I HATE the factory stampped metal clamps, added a Lenco to my 252 soon after getting it. The stock clamp is OK because it has a nice bronze pad, but the Lenco is much better. Improves performance too. About $50, for the 500A at AL.

 

[BukitCase]

Regardless of whether you keep the cheesy clamp or get a lenco or tweco one, find one of these

Braided ground battery cables

cut a piece of it about 3" long, fasten it to the side of your clamp that's connected to the actual work lead. This is just a slightly more elegant version of one of Jody's tricks (weldingtipsandtricks.com) ... Steve

 

[Rock knocker]

They don't make em, they're all bronze or brass

 

[Fifelaker]

Why copper? I use the brass Tweco's with no issues with the clamp anyways.

 

[aczlan]

Regardless of whether you keep the cheesy clamp or get a lenco or tweco one, find one of these
Braided ground battery cables
cut a piece of it about 3" long, fasten it to the side of your clamp that's connected to the actual work lead. This is just a slightly more elegant version of one of Jody's tricks (weldingtipsandtricks.com) ... Steve

Link to the referenced pages: Welding Ground clamp for Odd Shapes and Round Parts and A Better Mig Welding Ground Clamp

Aaron Z

 

[Rock knocker]

Why copper? I use the brass Tweco's with no issues with the clamp anyways.

The OP is probably mistaking bronze or brass clamps as cooper, and then when he reads the description that they are bronze, he thinks they are inferior. There would be no reason to even build a copper clamp, they are too soft and weak to hold up to the abuse.

 

[Timm250]

Brass is a combination of copper & zinc. Bronze is a combination of copper & tin. Both alloys are made up of various percentages of each metal but I think most bronzes are made from about 85% or higher copper content.

 

[Industrial Toys]

What is the point anyway? I have gotten into the habbit of clamping on any large pair of vice grips (not C clamps) that are handy when Mig Welding. Then I take my large brass ground clamp and kind of clamp it into the vice grips because I'm so **** tired of the brass clamp either not making contact because it's not sharp or coming off at the most inopertune moments! I'm kind of thinking of doing away with the brass clamp altogether and just attach my ground to a pair of vice grips.

Lincoln CV 250, 3 Phase 600 Volts, not sure of feeder model #, also Lincoln.