---
product_id: 26699008
title: "RIVERWELD PT-31 LG-40 Plasma Cutting Torch Completed 20072 Head Body for CUT-50D CUT-50 CT-312 CUT40 Plasma Cutter Length 16 Feet 5 Meter 20080"
brand: "riverweld"
price: "2983643₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Riverweld"
url: https://www.desertcart.vn/products/26699008-riverweld-pt-31-lg-40-plasma-cutting-torch-completed-20072
store_origin: VN
region: Vietnam
---

# 30/40A rated welding current 16.4 ft (5m) torch length Max cutting thickness 12mm RIVERWELD PT-31 LG-40 Plasma Cutting Torch Completed 20072 Head Body for CUT-50D CUT-50 CT-312 CUT40 Plasma Cutter Length 16 Feet 5 Meter 20080

**Brand:** riverweld
**Price:** 2983643₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Cut with Confidence, Reach with Power!

## Quick Answers

- **What is this?** RIVERWELD PT-31 LG-40 Plasma Cutting Torch Completed 20072 Head Body for CUT-50D CUT-50 CT-312 CUT40 Plasma Cutter Length 16 Feet 5 Meter 20080 by riverweld
- **How much does it cost?** 2983643₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/26699008-riverweld-pt-31-lg-40-plasma-cutting-torch-completed-20072)

## Best For

- riverweld enthusiasts

## Why This Product

- Trusted riverweld brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Reach Mastery:** A generous 16.4-foot torch length lets you work comfortably without constraints.
- • **Power-Packed Precision:** Handles up to 40A for clean, efficient cuts every time.
- • **Cutting Edge Capability:** Slices through metals up to 12mm thick — perfect for professional-grade projects.
- • **Universal Compatibility:** Seamlessly fits ESAB/L-TEC PT-31, JG-40, WSD-LG40 torches and multiple plasma cutters like CUT-50D, CUT-40, CT-312.
- • **Durable & Ergonomic Design:** Built tough with copper and plastic for long-lasting use, while ensuring comfortable handling during extended jobs.

## Overview

The RIVERWELD PT-31 LG-40 Plasma Cutting Torch is a robust 16.4-foot torch designed for professional plasma cutters, supporting welding currents up to 40A and cutting thicknesses up to 12mm. Compatible with a wide range of plasma cutting machines and torch models, it offers durable construction and ergonomic handling, making it an essential upgrade for millennial pros seeking precision and reliability in their metalwork.

## Description

PT-31 plasma cutter cutting torch Rated welding current: 30/40A Max cutting thickness: 12mm Torch Length: 5Meter (16.40 Feet ) 30/40A Air Plasma Cutting Torch/Gun PT-31 PT-31XL LG-40 This Torch (gun) can be used for machines such as CUT-30, CUT-40, LGK40, CT-312,CT-416, MTC-120, MTC-120P, MTC-160, MTC-160P, Super160, Super-160P, etc. The Brand of machines would be Rilon, Riland, Jasic, Mitech, Chiry, UNT, Krypton, Longetivity and so on.

Review: 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.
Review: 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

## Features

- Fit ESAB/L-TEC PT-31 JG-40 and WSD-LG40 Cutting Torch Completed
- Torch Length: 5Meter (16 Feet )
- Working with CUT50D CUT-50 CT-312 CUT40 Cutting machine
- Rated welding current: 30/40A;
- Max cutting thickness: 12mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Color:** Blue
- **Brand:** RIVERWELD
- **Material:** Copper; Brass; Rubber; PVC
- **Manufacturer:** RIVERWELD
- **UPC:** 709889660151

## Images

![RIVERWELD PT-31 LG-40 Plasma Cutting Torch Completed 20072 Head Body for CUT-50D CUT-50 CT-312 CUT40 Plasma Cutter Length 16 Feet 5 Meter 20080 - Image 1](https://m.media-amazon.com/images/I/61HNXXbWxVL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good buy, Great Quality, but check O2 line compatibility length
*by R***Y on November 27, 2020*

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.

### ⭐⭐⭐⭐⭐ Easy to replace
*by R***S on November 24, 2024*

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

### ⭐⭐⭐⭐ A bit small, but works as it should
*by M***D on August 25, 2025*

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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-09*