Begin with the actual batch
Convert the maximum and minimum batch mass into working volume using realistic loose and operating bulk density. Gross vessel volume is not usable working volume.
Confirm the operating range
Ribbon geometry must remain sufficiently engaged at the minimum batch while leaving enough free space for product circulation at the maximum batch.
Evaluate torque and the complete cycle
Cohesion, moisture, liquid addition, startup under load, loading time, discharge area, cleaning access and residual heel all influence selection.