Hi, everyone I have a winding machine with nema 34 12nm stepper motor open loop. The machine is used to wind coils with copper wire. I plan to upgrade the motor with stronger one. My working rpm is between 50 and 1000(minimum 600 best 1000) , I need max torque from 50 to 100rpm. In those range im working with thick wire (2mm+diameter), so if i work with thinner wires, I increase the RPM, so the torque I need there is less. (the higher the rpm, the lower the torque i need)

I want to ask which motor of these will have the most torque, I guess the servo motor must be geared 3:1 or more for good torque.

For example stepper motor is rated at 20N.m lets say at 50rpm(it will be lower at higher rpm but in my case is not a problem), On the other hand the servo motor is rated 6nm for every RPM 0-2500. If use belt for Servo motor 4:1 it will have 24N.m for every RPM it works?? So its rpm will be 0-625 24N.m ? That means the servo will have high torque for all speeds but the stepper will have high torque only for low speed.

During my calculation I think the servo motor (4:1 belt) will be stronger than the stepper 24nm>20nm, if i use 5:1 belt it will be even stronger 30Nm for rpm 0-500

In this case the servo motor is better than the stepper and the price is the same (too good to be real?) Or just the stepper is overpriced?

The price of the both motor is the same.

I cant use other type of motors because my software works with steppers or servos,

Or You Can recommend me good motor for my aplication up to 500-600 Euros, The 2 motors are just for example





https://www.aliexpress.com/item/1005...d=U6fau0jzBoZu



https://www.aliexpress.com/item/1005...d=ppDYdR92A10M





What about this motor rated at 3.3NM 6000rpm

https://www.aliexpress.com/item/1005...d=S67rWKRQ4dEy


With Belt 10:1 i will have 33Nm for rpm 0-600 this is even stronger from other 2 motors and cheaper? Correct me if Im wrong.