In the quest for perfectly colored stack of dimes TIG welds there are a few ways you can give yourself an advantage. Two of them are to get optimal gas coverage and the ability to see the weld puddle better. Gas lens kits do just that. The design of the gas lens allows for more efficient gas coverage and lets you stick the tungsten electrode out from the cup further giving you better visibility when welding. We decided to show you how quick and easy it is to convert your torch over to one of these kits below.
Above you can see the basic layout of the traditional torch parts and the gas lens parts are pretty similar. Some of the parts can be reused on your torch while some are specific to the gas lens kit.
Start by loosening the back cap and removing the front cup and electrode. You can then remove the collet from the back of the torch.
You can then remove the collet body from the front and set the collet body and nozzle to the side. In our gas lens kit pictured above we do include extra collets but you can also reuse your existing one if it is in good shape.
Here you can see the inner workings of the gas lens and why it’s better and different than the traditional torch parts. The gas lens has a wire mesh screen that “fogs” the shielding gas out of the torch and gives more coverage over the weld puddle.The collet body houses this screened portion and is larger in diameter than the traditional collets.
Start by putting the gas lens insulator into the torch so it fits inside of the existing insulator. This allows the larger gas nozzle to seal onto the torch to avoid a shielding gas leak.
You can then thread the collet body into the front of the torch to keep the insulator on the torch. The nozzle will compress it tightly onto the torch once tight.
You can then load the backside of the torch with the collet and the tungsten electrode.
Finally set your electrode stick-out and tighten your back cap until it is snug and the electrode is firmly held in position.
You now have a fully converted gas lens setup on your TIG torch and you’re ready to step up your welding game!