Uwitekakabiri girder hejuru ya craneni igisubizo kiremereye cyo guterura gikunze gukoreshwa mu nganda zisaba ibikoresho bikomeye, bifite ubushobozi buke. Ubu bwoko bwa crane bugizwe nuburinganire bubiri bubangikanye bugari bwubugari bwumwanya wakazi, butanga ituze ryinshi nubushobozi bwo kwikorera imitwaro kuruta inshundura imwe. Izi crane zo hejuru ninziza mubikorwa nko gukora ibyuma, guteranya ibinyabiziga, kubaka ubwato, nibindi bidukikije bikenewe cyane aho bisobanutse kandi biramba.
Iyo usuzumye ibisubizo biremereye byo guterura ibisubizo, gusobanukirwainshuro ebyirieot igiciro cya craneni ngombwa mu gutegura ingengo yimishinga minini yinganda.
Imiterere ya akabiri girder hejuru ya cranemubisanzwe birimo:
Double Girders: Imyenda ibiri yibanze itwara umutwaro, igaha crane ubushobozi bwo guterura ibikoresho biremereye.
Amakamyo ya nyuma: Aherereye kumpera yumukandara, ibi byorohereza kugenda kumurongo wikibuga cya eot crane ya kabiri, bigafasha gutambuka gutambuka kumurimo.
Kuzamura na Trolley: Bishyizwe hagati yimikandara yombi, kuzamura na trolley bigenda bikurikirana mugihe cyumukandara, bigatuma umutwaro uhagaze kandi utambitse.
Sisitemu yo gukoresha amashanyarazi no kugenzura :.double girder eot cranekugenda, kuzamura, nibindi bikorwa bigenzurwa hakoreshejwe moteri yamashanyarazi, akenshi hamwe na kure cyangwa radio igenzura kugirango ikore neza kandi neza.
Uwitekainshuro ebyirieot igiciro cya craneBirashobora gutandukana cyane bitewe nibisobanuro nkubushobozi bwumutwaro, span, hamwe nuburyo bwo guhitamo.
Kubungabunga buri gihe ibice bya crane-nko kuzamura, kugenzura sisitemu, hamwe nuburyo bwimiterere-ni ngombwa mu mikorere itekanye kandi ikora neza. Gahunda yo gufata neza igomba kuba ikubiyemo ubugenzuzi bwa moteri, sisitemu ya feri, nibice bitwara imitwaro kugirango byizere kandi birinde gusenyuka gutunguranye.
