A machine for making a reinforced, collapsible bulk bin assembly is provided. The machine includes a body blank feeding device for providing a body blank from a stack of body blanks, an erecting device for partially erecting the body blank, a folding device for partially folding a bottom blank, a bottom insertion device for inserting the partially folded bottom blank into the partially erected body blank, and first fingers for attaching major flaps of the body blank to the bottom blank. The machine also includes second fingers for attaching minor flaps of the body blank to major flaps of the body blank, wherein the erecting device collapses the partially erected body blank after the first fingers attach the major flaps to the bottom blank.