Calculating Grain Bunker Volume and Capacity

Following is an illustration that can assist you in determining how many bushels of grain will fit in a grain bunker or planned flat storage grain area.  Note: All volume is in cubic feet.  All capacities are in bushels.

Calculating Bucket Elevator Spout Length

Dry grain typically flows in a spout at an angle of 45° or more.  High moisture grain, sunflowers and ground feed generally require spouts at a minimum angle of 60°.  To calculate spout length, the following calculations apply: