Adjustable Burn-Back option on MIG Welders

[Rotosan1980]

Ciao,

I'd like to know if in your opinion the adjustable Burn-Back option could be an advantage for a 200A machine class or the auto set Burn-Back that all machines should have could be a better choice to set faster the machine.

I've seen that some professional machines have it and other don't.

What do you think about?

Thank you very much for you help

Ciao Gian...

 

[old rollei]

Burn back control only needed on very high wire speeds ( amps above 250) and aluminium which is always in the spray mode , which require high wire speeds. The main reason for the burn back control is to prevent the wire fusing with the tip. (Wire stopping while the main welding current is still on)
(30 years on equipment design and construction) if you need any more help.

 

[astro_al]

I have found it very useful welding steel in spray transfer.

Al.