Igiya le-helical elisethelwe ama-gearbox we-helical emishinini yokuphakamisa liyingxenye ebalulekile yokuqinisekisa ukuhanjiswa kwamandla okushelelayo nokusebenza kahle. Idizayini yayo ye-helical eyingqayizivele yehlisa umsindo nokudlidliza, ithuthukisa ukusebenza okuphelele. Ubunjiniyela bokunemba besethi yegiya busiza ukusebenzelana okungenazihibe, bunikeze umthamo oqinile wokuthwala umthwalo. Ifanele izinhlelo zokusebenza ezihlukahlukene zokuphakamisa, iqinisekisa ukwethembeka nokuqina, okuyenza ibe yingxenye ebalulekile yemishini yokuphakamisa yesimanje.
Amabhizinisi ayishumi aphezulu e-china, ifakwe abasebenzi abangu-1200, ithole izinto ezisunguliwe ezingu-31 kanye namalungelo obunikazi angu-9 .Imishini yokukhiqiza ethuthukisiwe, imishini yokwelapha ukushisa, okokusebenza kokuhlola.