Abstract: An improved packing apparatus is disclosed for use in compacting various types of materials such as grain or green forage into large air-tight tubes or bags. The apparatus includes an auger for packing the materials which is supported in part by bearing means located outside of the material flowpath and in part by an extended section supported by the material itself thereby eliminating the possibility of material becoming entangled or jammed. A retractable conveyor assembly is also incorporated therein which may be easily moved between operating and transport positions. An optional grain loading auger is also disclosed which is particularly well suited for transfering grain or like materials from a transporter to the packing apparatus.