Calculation of servo with solidworks. How?

Hi everyone!
Please tell me. How can i choose servo with solidworks calculations?
I designed specific feeder. But i want know how to caclulate with all movement and contacting force.
There are specific movement: 6 steps he move when product (snack pouches) falling into the closed space one by one. And then this pouches moving to
discharge.
How using SW i can calculate forces and torque???