I am trying to build a robot which requires around 2000 oz-in of torque at speeds of up to 100 RPM. I was looking at the 3334 stepper motor, it can handle the torque no problem but says it has a max RPM of 25. Is this the max RPM at the continuous torque or unloaded? If it is at the continuous torque, is there a way to find out the actual max RPM. Finally if it turns out that the motor is insufficient can you recommend a motor that would be more suitable? •••••••••••
The maximum continuous speed for that motor is 25rpm (no load). Given that you need ~2000oz-in of torque at 1000rpm, there is a chance it might work.
There are not many geared stepper motors which can provide that high a torque - can you tell us more about your application?