There is a plethora of information on motor sizing on the internet discussing the rated voltage, current, torque and power of the motor, and how these parameters should be selected based on the load the motor's driving. Some articles went deeper discussing the moment and the torque. Then, HP = (torque x speed)/5252.
But how often is all this information available? If you're sizing a motor for a conveyor in an industrial plant, what other data other than the voltage (likely 480V in north america) and the mass of the load do you have readily available. Companies that manufacture conveyor systems probably have software tools that calculate the motor size for them.
But for someone who doesn't have this software, how does one go about determining what size motor they need to drive a 6000lbs load over a conveyor of length 20 feet. Let's assume 1800RPM since that's what most conveyor motors at our plant are, and 480V 3phase across the line start.
I guess I could start with calculating the torque required: torque = force x radius. Is the radius in question that of the conveyor roll? And force = mass x acceleration. Mass = 6000lbs. Acceleration = (1800 - 0)/t. Assuming starting from rest and going to full rated speed. Not sure what "t" is since the motor is direct on line start (and not controlled by a VFD so there is no ramp up time)
I want to get a good grasp on the subject so a detailed answer would be much appreciated.