How To Clean A Mig Welder Liner

When welding with a MIG welder, it is important to keep the machine clean. If you don’t do this, the excess metal will build up in the machine, and it won’t work properly again until you get rid of it. Furthermore, if left for too long, this metal can burn and ruin some of the components. Cleaning your MIG welder regularly will stop any potential issues from occurring. Below are some instructions on how to clean a MIG welder liner.

How To Clean A Mig Welder Liner

  1. First off, you will need to remove the welder from your work area. If you don’t have a proper workspace, this is not recommended.
  2. Next, you will need to clean out the welder. You can do this by turning it on and then shutting it down again right away. This will allow the welder to cool down and allow any excess metal to fall out of the machine.
  3. Once the machine has cooled down completely, you can take off all of the safety glasses that are on your face at this point. After doing so, you should see a large amount of metal in front of you on the ground. This is where most of your excess metal will be sitting at this point in time. You must take care not to step on this material as it could very well burn your feet or legs if left unattended for too long; which would cause you unnecessary injury or even death in some cases as well as destroy any material that you may have been trying to re-sell.
  4. In order to clean the welder, you must remove the intake tube that is located at the bottom of your machine. This is located directly in front of you and will be a large cylinder-shaped piece of metal with a few holes in it. You will need to use something small enough to fit through each hole and remove the excess metal from inside of this cylinder. You can use your fingers, a toothbrush, or even a small paintbrush if necessary.
  5. Once you have removed all of the excess metal from inside the cylinder, you can now take off any safety glasses that are still on your face and drop them into the garbage bin that is located next to your work area (if it is not already there). After doing so, you should be left with an empty cylinder that is free of any excess metal that was previously inside it.

Regular Cleaning

  1. Remove the metal shielding from around the welder’s head. This will allow you to get to the metal in the machine without covering it up with shielding.
  2. Cleaning your MIG welder liner is best done with a wire brush and some cleaning solution, such as kerosene or mineral spirits. You can also use a wire brush, but make sure you don’t use one that is too small for the machine. The smaller you go, the more likely it will get stuck in one of the holes in the liner and damage it further.
  3. Use a rag to wipe down your MIG welder head and then clean it out with some cleaning solution or kerosene, whichever you prefer to use. You should do this every time you clean your machine and replace any rags that become soaked with oil or grease by washing them out first with soap and water before using them again on your machine. If they are heavily soaked, they won’t work as well.
  4. Once you have cleaned the liner of your MIG welder, you can reattach it to the machine and secure it with some tape or electrical tape. This will ensure that it doesn’t fall off again, as well as keep any debris from falling into the machine and causing a problem.
  5. You should also clean the machine’s gunk out of the inside of the liner. This is done by putting a rag in between your gunk and the machine and then wiping it out with an old rag or a brush. If you use too much cleaning solution, you will have to repeat this process again; but if you use enough, it will clean out all of the gunk.

Ways To Clean A Mig Welder Liner

1. Remove The Liner

You will need to remove the liner from your MIG welder to do this. It is usually located in the back of the machine, but you need to search for it first. Take note of where it is located and then remove it.

2. Clean The Machine

Once you have removed the liner, you can begin cleaning your machine. There are many different ways to clean a MIG welder, however, I recommend using a wire brush for this job. The reason for this is that it will help get rid of any dirt or debris from the inside of your MIG welder and also loosen up any material that could be stuck on there. You can also use a vacuum cleaner if you want, just make sure that you are not sucking up any wires or cables as doing so could cause problems with your machine. Once all of these parts are cleaned out, then get rid of them and wash out your machine with water and soap before putting everything back together.

3. Put The Liner Back In

Now that your machine is clean, you can replace the liner and put it back into your MIG welder. Simply take it out of its packaging and place it in the machine. This will ensure that you get everything back together properly. Once this is done, then you are ready to begin welding again. You will find that your MIG welder will start working properly once again.

Degreasing With Mig Torch And Rag

  1. First, you need to decrease the unit. This is done by using a torch and a rag.
  2. Light the torch and place it on the nozzle of the machine.
  3. Move it around, heating it up until you see smoke coming out of your machine. Do this for around 10 minutes, so that all of the grease and dirt are gone.
  4. Take a rag, douse it in alcohol, and wipe down your machine to remove any remaining residue from degreasing with a MIG torch and rag.
  5. Wipe down with a clean cloth to remove any remaining residue from cleaning your machine with alcohol and a rag, or simply use some paper towels if you prefer paper towels instead of rags for cleaning purposes.

Flush With High-Pressure Air

  1. First, you need to flush the liner with compressed air. To do this, turn the welder off and open the air hose on the back of the machine. Turn the air pressure up to about 60 PSI or higher.
  2. After that, hold the trigger down on your MIG welder for a few seconds and let it sit there for a couple of minutes. The metal will be pushed out of your liner and into an external tank that is connected to it as well as an internal tank inside your welder. You will now see the metal build-up in both of these tanks.
  3. Once you see that there is no more buildup in either reservoir, then you can turn off your MIG welder again and unplug it from any wall outlet or power source. This will allow you to drain both reservoirs completely so that they are empty before you continue cleaning your liner properly with a wire brush and some solvent-based cleaner (such as acetone). When doing this, make sure to turn the welder off and unplug it from the wall outlet.


Cleaning a mig welder liner may not be the most exciting part of owning a MIG welder, but it is essential to keeping it in good working order. By cleaning out the machine regularly, you will prevent any issues from occurring due to the build-up of dirt and grime. It is recommended that you clean the machine after 10 hours of use. You can clean the exterior, tank, and wire spool with a cloth and water or solvent. You can also decrease, flush and dry the machine with high-pressure air to get rid of any stubborn dirt and grime.

Felix Hiett
Felix Hiett
Felix Hiett is a welding expert blogger who writes about welding and other related topics. He is also an experienced welder and has worked on a variety of projects.