I am trying to drive a ball screw captive rod type actuator with a 10mm pitch thread, ie, I rotation = 1cm actuation. It has about 10kg of vertical load on it.
I was hoping to move it at around 200mm per second but it looks like achieving 1200 rpm at load from a stepper is unrealistic.
That said I am not able to get much above 300rpm either. I am limited to Nema 23 due to the size of the motor flange on this Festo Actuator.
I'm wondering if a closed loop motor might perform any better. Failing that I might have to see if I can find an actuator with a larger thread pitch.