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Thank you all for your answer. it really helps me!

ok those one are less than 100$ which is good but how can i know for sure that they will do the work and i wont buy them for nothing?

Hi Peter,
first of all, thank you for you help.
Let me rephrase my question.
I need the motor for my university project, and for some reasons, I can’t take a motor for free from people.
maybe you...

Thanks you all for replies!!
thats the thing i was worried about.. those medium size electric motors are way out of my budget and cost from 300 to 500 dollar. i was trying to find cheaper solution :\

Im still new at this field so i dont really know how to calculate the torque required for my machine. all i need is to shred the plastic bottles. also time is not important.
and no, it does not need...

Hi,
As a student of mechanical engineering im trying to do a project which involves shredding\ grinding plastic bottles.
I wonder if i can take a Nema 34 or even Nema 24 stepper motor with high...