Servo advice

Hey,

I’m in my last year of college and I’m doing a tech report. The project I’m doing an automated cat litter box and need to pick a servo to rotate a half cylinder that weighs 25kg (55lb). I was trying to do torque calculations but I don’t think I’m doing it right. Does anyone know of any cost effective servos or steppers that can rotate that mass?

(Sorry if the format is bad I’m on a mobile device)

Thanks,

submitted by /u/TheElectronicPanda
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