Isosiyete yacu irashobora gukora ibintu bitandukanye byerekana ibyuma byuzuza ibyifuzo byabakiriya. Nkuko twese tubizi, icyuma kizunguruka gikoreshwa cyane cyane mugutanga ibikoresho bifite ububobere buke kandi bworoshye. Ubu buryo bwo kuzenguruka, muburyo bwo kurangiza ibikorwa byo gutanga, bufite umurimo wo kuvanga ibikoresho icyarimwe. Isosiyete yacu ikoresha cyane cyane uburyo bwo kuzunguruka no gukonjesha kugirango ikore ibyuma bizunguruka, bifite ibyiza byo gukora neza cyane, kuzigama ibikoresho bibisi, ubuziranenge bwiza, ubukana bwinshi, kurwanya neza kwambara nibindi. Ikoreshwa cyane mubisobanuro bitandukanye bya convoyeur no gukanda shaft nkuru.
Nigute ushobora guhimba iyi spiral? Ukurikije ibyo abakiriya basabwa, nkibikoresho byibanze, umurambararo wa spiral, intera ya spiral nibindi. Tuzategura ibishushanyo mbonera nibikoresho bya tekiniki, ibyuma bizunguruka bimaze gutegurwa, intambwe yingenzi iraza, aribwo guhuza-gusudira hagati yicyuma , mbere yo gusudira, tuzakora igikoni kumwanya uhuriweho mbere, hanyuma dutangire gusudira, murubu buryo, turashobora kwemeza noneho imbaraga zicyuma cyose kizunguruka, nkuko tubizi, ibyuma bizunguruka bitwara imashini na kwiruka, niba ingingo ihuriweho idakomeye, izavunika byoroshye. Dukurikije ibyifuzo byabaguzi, turashobora kandi gutwikira icyuma kivanze nicyuma kumpande zicyuma kugirango tuzamure imbaraga zicyuma kandi kirusheho kurwanya ruswa.
Ubu bwoko bwa spiral blade bukoreshwa cyane kwisi, dufite abaguzi buhamye, baturuka mubuhinde, Uburusiya, Mauritania, Vietnam. Turizera ko dushobora kubona ibaruwa yo kubaza. Turashobora gutanga igice cyibicuruzwa nibicuruzwa byanyuma dukurikije ibyo usabwa.