Screw conveyor kapena auger conveyor ndi makina omwe amagwiritsa ntchito phula lozungulira la helical screw, lotchedwa "kuwuluka", nthawi zambiri mkati mwa chubu, kusuntha zinthu zamadzimadzi kapena granular.Amagwiritsidwa ntchito m'mafakitale ambiri ogulitsa zinthu zambiri.Ma screw conveyors m'makampani amakono nthawi zambiri amagwiritsidwa ntchito mopingasa kapena pang'onopang'ono ngati njira yabwino yosunthira zinthu zolimba, kuphatikiza zinyalala za chakudya, tchipisi tamatabwa, zophatikizira, mbewu zambewu, chakudya chanyama, phulusa la boiler, nyama, ndi mafupa amafuta. zinyalala zolimba, ndi zina zambiri.