ʻO ka mea lawe uila a i ʻole ka mea lawe auger kahi hana e hoʻohana ai i ka ʻili helical screw blade, i kapa ʻia he "lele", maʻamau i loko o kahi paipu, e hoʻoneʻe i ka wai a i ʻole nā mea waiwai.Hoʻohana ʻia lākou i ka nui o nā ʻoihana mālama nui.Hoʻohana pinepine ʻia nā mea lawe uila i ka ʻoihana hou a i ʻole ma kahi liʻiliʻi liʻiliʻi e like me ke ala kūpono e neʻe ai i nā mea semi-solid, me ka ʻai ʻana o ka meaʻai, nā ʻāpana lāʻau, aggregates, cereal grains, hānai holoholona, boiler lehu, ʻiʻo, a me ka ʻai iwi, municipal. ʻōpala paʻa, a me nā mea ʻē aʻe he nui.