Setting up MIG gun for Aluminum Welding

Overview 

There are specific details that need to be adhered to properly setup a MIG gun for Aluminium (Teflon) Welding. The liner and wire feeder should be setup in a certain way. This may differ slightly from according to the brand of gun and machine. This guide will help give general instructions that can be adapted according to the equipment. For general MIG wire liner install watch this video by our premium MIG gun supplier Binzel.

How to setup aluminium liner for MIG gun?

1. Required items for setup

   1. ​MIG gun 
   2. Aluminium Liner 
   3. Neck Liner
   4. Guide Tube
   5. Aluminium Tips
   6. Feed roller
   7. 

2. Remove the front accessories in the gun as shown in the picture

3. Remove the back nut and the liner already in the gun

4. Assemble the neck liner to the liner

   1. Fit the female threaded neck liner end to the aluminium liner

5. Insert the neck liner end to the gun through the torch end 

   1. Carefully insert the liner without bending the liner - If the liner is bent it can't be used.

6. Make sure the neck liner is 3-5mm out of the swan neck

7. Fit the aluminium liner nut

   1. Do not over tight the nut at the back
   2. Follow the steps shown in the picture

8. Remove the steel guide tube from the machine

   1. Undo the pressure arm
   2. Unscrew the screw to remove the inlet guide tube
   3. Then remove the inlet guide tube
   4. Push the steel guide tube out with any long rod or you may use the steel liner end as shown in the picture

9. Cut the guide tube to size

   1. Cut the brass aluminium guide tube 3mm shorter than the existing steel guide tube 
   2. Easy method is to gut the guide tube using a grinder

10. Fit the brass guide tube to the liner

11. Remove the steel guide tube from the machine

    1. Undo the pressure arm

    2. Unscrew the screw to remove the inlet guide tube
    3. Then remove the inlet guide tube
    4. Push the steel guide tube out with any long rod or you may use the steel liner end as shown in the picture

12. Change the feed roller to U grove roller

13. Fit the gun to the machine

14. Setup the aluminium liner on the feed roller and alignment of wire

    1. Cut the aluminium liner close to the feed roller - as much as possible

    2. Insert the inlet guide tube back again
    3. Align the wire to the correct wire size grove
    4. Tighten the screw

15. Fit the front accessories 

    1. Gas diffuser 

    2. Tip holder
    3. Aluminium contact tip
    4. Nozzle

 

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