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The RIVERWELD PT-31 LG-40 Plasma Cutting Torch is a 16-foot, gas-powered torch designed for professional plasma cutters like CUT-50D and CT-312. Rated for 30/40A welding current, it efficiently cuts materials up to 12mm thick. Built with durable copper and plastic, it offers reliable performance and broad compatibility across leading plasma cutting machines.





















| ASIN | B01DNPJ68K |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #230,595 in Automotive ( See Top 100 in Automotive ) #260 in Plasma Cutting Equipment |
| Color | Blue |
| Customer Reviews | 4.2 4.2 out of 5 stars (999) |
| Date First Available | March 31, 2016 |
| Included Components | PT-31 LG-40 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.86 pounds |
| Item model number | PT-31 LG-40 |
| Manufacturer | RIVERWELD |
| Material | Copper Plastic |
| Part Number | PT-31 JG40 |
| Pattern | PT-31 16ft Complete |
| Power Source | Gas-Powered |
| Product Dimensions | 11.42 x 9.84 x 4.72 inches |
| Size | PT-31 16ft |
| Style | PT-31 complete torch |
R**Y
Good buy, Great Quality, but check O2 line compatibility length
There are two sections to this review. The quality and the installation QUALITY: Overall this replacement torch is very sound and feels very durable. The product is well made. It is sturdy and comfortable to hold in your hand. There isn’t a safety cover over the button. If you barley push it and it turns on. Would this be good with someone starting out? Yes. As long as they remember safety. Would this be good for someone with experience, most definitely. Would I recommend the replacement, yes IF AND ONLY IF IT IS COMPATIBLE WITH YOUR O2 LINE INSTALLATION: I mainly purchased for the spacer. I wanted to use the original torch that came with my welder and I didn’t want a spacer that dragged on the surface I was cutting nor was I able to locate a double roller spacer made for the PT-31 under $15. I attempted to first install the roller but the diameter was too small. I figured it would have fit because it came with another PT-31. It did not. I noticed the diameter on the description later. Then I thought I would switch out just the heads. My version of the PT-31 has notches around the top that the head uses to slide into the handle. That wouldn’t work unless I filed the head down on the sides. Then I decided to go ahead, and switch out the handles. I unsoldered the switch on my OE torch. The. soldered it to the replacement. Everything was good. I was getting excited, then I went to install the head on the O2 line and found that the screw on spacer/head holder they include doesn’t allow you to tighten the nut on the line. It makes the line sit too far in. The nut on the incoming line has a swiveling nut so all it did was spin. The copper connector wasn’t long enough to push all the way through to let you tighten the coupler. I decided that I’d cut the spacer but before I did, I realized it held the head in between two plastic clips molded in the handle. If I cut it the head could pull on the O2 line and possible pull out, push in, or twist easily. I ended up put everything back in the original handle and decided to file the head to a square so it would fit in my OE handle since I was passed the return date. It took some time. I was able to get it to sit in my torch handle. Everything lined up well and works. After changing the head out I hit the tips mixed up but as I sat there playing with them discovered the tips were different and didn’t interchange between the two heads. I thought I should have returned it. Now I have to replace all my tips. I checked the listing for the tip types and discovered I could have returned it. Good job, Remedy! All of that said: 1. If you want the rolling spacer, check the internal diameter of your head. Not the ceramic piece. the actual plastic portion. 2. If you decide to use the whole torch in place of yours verify your O2 line will fit before you unsolder the switch. 3. If you decide to modify it to fit your current one make sure the tips are interchangeable. 4. Return it if you are not comfortable modifying the head to fit yours. The last photo shows the spacer and riverweld handle. The riverweld head stopped at the indented portion and did not come out as far as the original.
R**S
Easy to replace
It was so easy to change out and fit perfectly to my existing line and it took my expendable tips. Works really well almost better than original
M**D
A bit small, but works as it should
Smaller than expected, but works great. I had to 3d print a sleeve for the top to slide over it to make it taller and thicker to fit my Multicam cnc plasma mount. I’m sure with the right mounts it would be a perfect budget machine torch for a cnc. I just decided to use the factory ones and had to modify. Great for the money. It’s plastic. Not heavy duty but works ok
N**H
Saves your tips!
Awesome thing to have!
D**H
Roller guide wheels caused torch head to instantly self destruct.
Needed a new torch head for my cheap chinese plasma cutter and this one looked just like the one that was on it so I got it. Decided to spend the extra money and get the little roller guides thinking it could be handy. Installation was easy and it was exactly like the one I was replacing. 2 seconds into my first cut it arced out the side of the torch and melted the mount for the guide wheels. Torch and guide both instantly ruined. Ordered a 2nd one but no guide wheels this time and it has worked perfectly for many hours of cutting.
P**N
Great value
Fast shipping and even better than the original one that came with the machine, may get another one just to keep on hand incase something happens to this one.
J**E
Plasma handle
Works good and helps with a strait line on plate . On them China bombers
D**E
long lead nice
my plazma cutter works the best ever nice long lead button on torch a little small but it cuts great
C**C
Acheté pour remplacer la torche du découpeur Parkside. Rien à dire, très bon rapport qualité prix et livré rapidement.
B**N
Awesome
2**D
No pilot arc as sold Junk bs
S**E
Pour le garage
P**T
J ai couper un bolts de ball joint ça super bien été
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