Iyo crane drum boka ndicho chikamu chepakati chehusimusi hwekusimudza kwemuchina wekusimudza. Iyo inonyanya kushandiswa kumhepo uye kutungamira kweiyo waya tambo kuti izive kusimudza uye kuderedza kufamba kwehuku. Sechikamu chakakosha chehurongwa hwekutakura-mutoro, boka redrum rakarondedzerwa zvakananga nekuchengetedza uye kuvimbika kwekusimudzira kushanda. Maererano nechimiro chesimba, chinogona kukamurwa kuita marudzi maviri: imwe-layer inodonha uye yakawanda-layer mhepo. Iyo inoshandiswa zvakanyanya mumidziyo yakasiyana-siyana seBridge Crames, Gantry Cranes, Shongwe Cranes, nezvimwe.
Iyo Drum boka inonyanya kuumbwa neDrum Mutumbi, kubatanidza Shaft, tsigira kubereka, kudzivirirwa mudziyo uye zvimwe zvinhu. Iyo chigubhu chinowanzogadzirwa neyemhando yepamusoro simbi kana yakavezwa simbi chimiro, uye iyo nzvimbo inogadziriswa neyekupaza tambo mirepoves yekuve nechokwadi chekurongeka kweiyo wire tambo. Paunenge uchishanda, chigubhu chinotungamirirwa kutenderedza nekudzoreredza uye kusunungura tambo ya waya maererano nezvinodiwa zvechigadzirwa. Mapoka emazuva ano Drum anoshandisa akagadziriswa tambo yegrope paramita uye pamusoro pekurapa maitiro ekunyatso kuderedza waya tambo kupfeka uye kuwedzera hupenyu hwebasa. Dzimwe cranes dzinorema dzakashongedzerwawo nemidziyo yekugadzirisa tambo kuti ive nechokwadi cheiyo gadziriro yemubatanidzwa yakawanda.
