Stepper motor Torque curves - what do you think of this??

[JAZZCNC]

Is it me or does that say pulse rate at the bottom in which case 1000 is only 5 rpm!

I'm with Jazz on this one lol.

Yes it's pulse per sec but it's not 5rpm it's 2.5rps or 15rpm. 1000/400=2.5 x 60=15 rpm. Or high end 7000/400=17.5rps 17.5x60=1050rpm.

The thing to note is how little torque is available in the usable working range which matters most. This being when it's cutting. Which is between 300-700rpm 0r 2000pps -5000pps. So in real terms you'll have 1.2nm at best when it really matters.!

That said I don't trust these things far I could throw my machine. I'd put small wager on that this graph doesn't even belong to that motor. It really is something they put up to look good and satisfy those who feel need to see graphs.