What is the "right" dust collector for metal work?
Flow rate of my dust collector is 1550 CFM. Isn't this enough?

Based on your guys suggestion I'll put a metal bin with a precollector
instead of vertical bags it came with and vent exhaust outside.

BTW What kind od ducting I should use? Aluminum won't wok too good
because it's a mobile setup and I'll have connect/disconnect and move
to/from storage it every time I use it.

Thanks for all suggestions,
Alex