U-bwoko bwa screw convoyeur ni ubwoko bwa convoyeur, kandi umusaruro ukorwa ukurikije DIN15261-1986, kandi igishushanyo cyujuje ubuziranenge bwa JB / T7679-2008 "spiral convoyeur".Imashini ya U yo mu bwoko bwa U ikoreshwa cyane mubiribwa, imiti, ibikoresho byubwubatsi, metallurgie, ubucukuzi bwamabuye y'agaciro, ingufu nizindi nzego, cyane cyane mugukwirakwiza uduce duto, ifu, uduce duto twibikoresho.Ntibikwiye gutwara ibikoresho bigenda byangirika byoroshye, bifatanye cyane, kandi bifite ubuhehere bwinshi.