If you can run at 300 ipm with good accuracy...then that will be adequate speed for most plasma cutting applications. There are some that cut 24 and 26 ga. galvanized and regular steel at up to 450 ipm.....but you can use the FineCut consumables in your Hypertherm Powermax1250 and reduce the currrent to cut at lower speeds with excellent quality. Th majority of plasma cutting applications use speeds under 150 inches per minute.
Jim Colt Hypertherm