primeweld tig225x banner 2

Welding at 190 amps with a 150amp rated torch.

by Rick

Thanks again for answering questions. You've been very helpful. In a previous question that you answered you stated that for 1/8 (.125) aluminum you would use an amperage of around 180-190 amps ( 1.5amps per 1000inch of material). My syncrowave 200 came with torch only rated for 150 amps. Can I still use it for that thickness of material and would it be ok because 190 amps would only be used to form the puddle?



if its an air cooled torch, you will know if you go past the limit when the torch starts to get really warm...then its time to let it cool.

like you say, if you are above the rating for a short time to get a puddle, it probably wont get too hot and then you will drop back down after the metal heats up.


Return to tig forum.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.