Abstract: A case loader for forming arrays of articles such as milk jugs carried by a relatively upper supply conveyor to the loading gate of a loading station and dropping the articles into cases delivered by conveyor to the loading station and raised by an elevator up under the loading gate. A conveyor article sensor is employed to ensure the presence of articles on the supply conveyor a sufficient distance upstream to develop sufficient line pressure force for reliable operation. A plurality of cases are loaded at the same time, and an array of case sensors are employed for reliable case position sensing and operation.