The only reason I’d ever dialed on my amperage is because I can’t move fast enough.
I almost always run 14 gauge at 45 amps 270 in per minute. Using a standard 45 amp shielded consumable pack for the Duramax torch with my PowerMax 85 plasma.
There is very rare circumstances where I don’t but typically I’ll run
45 amp for 45 amp consumables
65 amp for 65 amp consumables
85 amp 85 amp consumables
The only exception is when I start running over 300 in per minute I’ll dial back on amperage.
Or with fine cut consumables I’ll use 40 amps as recommended by the cut charts for some of the thinner gauges.
I think a lot of the confusion comes in that they call these machines that razor weld 45 or the Everlast 52i or the cut 50 but those numbers don’t represent actual output of that machine like hypertherm does they’re just numbers.
If you compare a hypertherm 45xp versus a razor well 45 the hypertherm’s literally doing twice the work .
The numbers written on the sides of those B grade machines and on their LCD screen are complete fantasy.
Were a hypertherms LCD screen when dailed to 45 amps legitimately means 45 amps.
Where is a lot of these other machines when this machine says 45 it could be any amperage. the machine just has one to 45 power levels"
They do this to confuse people who are purchasing products in believing that those products are actually outputting that in amps where it’s just a number. And maybe it would happen to be that in amps but either voltage or efficiency then suffer.
Ohm’s law
Definitely in my opinion that is.
Once I get some of my power monitoring better set up at the shop I’m going to do some tests with my Everlast 60s, 375 Miller spectrum and my hypertherm 85.
And see what kind of
work done versus wattage ratio
is actually happening