Hobart 770031 400-Amp T-Style Ground Clamp Brass
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I'm not sure what gauge it is, but the terminal hole is quite large - I believe it was about a half inch. br>J Lane is a writer who lives in the United States.
770031 is a 400-amp circuit breaker that comes with a one-year warranty. Jaw opening is 1/2 inch, and it can hold up to one cable.
Yes, this would be a great upgrade over the current style that comes with the Hobart Handler 140. I used this ground clamp on my MIG 180 and plasma cutter, and it solved all of my grounding problems.
This is used to strip the wire and insert it into the clamp's coupler, after which the bolt is tightened to keep the wire lead in place.
Selected User Reviews For Hobart 770031 400-Amp T-Style Ground Clamp Brass
Is it really necessary to have a ground clamp? Yes, that is correct. Replace the likely junk factory ground clamp with this one before running the first bead if you've bought a budget 120v buzz box mig welder. While a solid ground is essential for all arc welding processes, it is even more so for mig welding, and even more so for people who are new to the process. Have you ever had your settings perfectly aligned with the chart, only for your wire to get stuck in the puddle and push the gun away? When the ground isn't there and the arc isn't established, the machine doesn't notice or care; it just keeps pushing wire. A bad ground can cause a variety of issues that can mimic issues with wire feed, voltage, technique, and prep that aren't there. When you have a bad ground, you may find yourself chasing settings all over the place and tearing your hair out because none of them help. I'm sure several perfectly good welders have been mislabeled as junk because they didn't run well when all they needed was a better ground clamp. br>br>Admittedly, this is the same ground clamp that can be found at Harbor Freight. Those are actually good clamps, far superior to the ones that come with most welders. I can't fire up my truck and move it out of the neighborhood for a buck more than HF is charging, and I can't fire up my truck and move it out of the neighborhood for a buck more than HF is charging. Amazon is one of my favorite websites. br>br>One last piece of advice. Remove the insulation from a few feet of welding cable to reveal the bare copper underneath. Double it over and loosely twist it, then clamp that bare welding cable twist between your ground clamp and the work piece. This generates hundreds or thousands of individual ground paths, far more than a single ground clamp could. This can help you finish a project with a mediocre ground clamp, or make a good ground clamp work better in less-than-ideal situations (you still need to clean it down to bright shiny metal!). ), or even assist in the isolation of problems with a previously installed ground clamp. You have a problem with your ground clamp if you're clamping on bright shiny metal and adding the twist of wire helps.
My Hobart handler 190 came with this, which is a tiny thing in comparison. The lead clamps on today's machines are garbage; a $1,000 machine comes with a $5 clamp! To get a good ground, I made a bundle of frayed copper wires and duct taped them together, which I was sticking under my clamp; thankfully, I don't have to do that anymore. If your MIG clamp looks anything like mine, this is a fantastic upgrade.
The jaws of this robust ground clam are misaligned and unfinished. The castings on the clamp I received had never been cleaned. As a result, a prominent ridge runs up the middle of the jaw, causing contact to be made at only one small point, raising the question of why this clamp is better than low-cost OEM equipment. Although it is labeled as HOBART, it is simply another Chinese clamp. It could be fixed with some file work, but it should have been cleaned up before shipping.
I cannot recommend this clamp because it makes poor contact. First, the positive. Then there are the negative aspects: This is a clamp that can withstand a great deal of force. It's a beautiful springtime (nice). It takes a good strong grip to open it (it's stiff). put it in the right place. The lug for connecting the cable is also well designed, and I haven't had any issues with the following features, which is why I'm giving it three stars. The reason I can't recommend this clamp and will replace it as soon as possible with a different style/brand clamp is that it appears that the metal it's made of doesn't get along with the steel it's clamped to. It sizzles every time I use it. Instead of being a dependable clamp that you can position and forget about, it sparks and melts itself all over my work. I've tried a lot of different positions and things to get it to make good contact. removing the coating that had been applied to the surface and cleaning it - I am very dissatisfied with this clamp because it has had no effect on me.
Harbor Freight sells the same clamp under the BERGER brand for $13 instead of the HOBART brand for $26. br>I'm giving it a four-star rating because Hobart uses the same CHINA clamp for their paper tag.
My Primeweld 225 came with a shoddy clamp. The first time I used it, it twisted. br>br>This clamp appears to be quite sturdy. It reminds me of a ground clamp from my first welder, which I had 40 years ago. It has a lot of weight to it. If you're looking for a new ground clamp, this is the one to get.
I'm not sure why people are complaining about how strong the clamp must be to open it. It's tight, but if you can't open it, you should seriously consider strengthening your grip or doing some grip exercises.
Welding is a skill that many people have. br>Did your welder come with a trash bag clip made of stamped steel? br>Then switch to this clamp and enjoy yourself.
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