Quote:
Originally Posted by David Gardiner
Barry I have nothing against lightweight torches this is a different thing to a jewellers torch. I can't see the sense in using a jewellers torch, especially if it needs specially modified tips to make it work with sheet metal. As far as I can ascertain the equivalent to the number five tip I use for welding 1.5mm aluminium for a meco midget torch is a number 7 tip. This is the largest tip listed. It's never a good idea to use anything flat out at full capacity in my experience.
The reflected heat from welding with a large tip will tend to make the torch hot. I never have to cool my tips. I have done it on the lightweight tips. You can dunk the tip in water with the oxygen turned on slightly.
I will put more information in my thread on gas welding equipment soon but there is a difference between being comfortable when welding and using the tiniest torch you can find.
I do not sell torches or any tools for that matter so I don't have a vested interest in any particular type of torch. My intention is only to help people make informed decisions.
David
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A #7 tip,should weld .250" aluminum.