Ezweni lokuphathwa kwezinto kanye nokuthutha, ama-crane adlala indima ebalulekile ekuthuthweni kwempahla okuphephile. Kunezinhlobo ezimbili zama-crane avame ukusetshenziswa emachwebeni nasezikhumulweni zezitsha: ama-crane e-gantry akhathele yirabha (ama-RTG) kanye nama-crane e-gantry afakwe esitimeleni (ama-RMG). Nakuba womabili enza izinjongo ezifanayo, ngalinye linezici kanye nokusetshenziswa okuhlukile.
Ama-RTGzenzelwe ukusebenza ngamathayi enjoloba, okuwavumela ukuthi ahambe ngokukhululeka egcekeni. Lokhu kuhamba kuvumela i-RTG crane ukuthi ithuthe izitsha ezindaweni ezahlukene ngaphandle kokuvalelwa emzileni oqinile. Lokhu kuhle kakhulu ezindaweni lapho isikhala silinganiselwe khona, njengoba kungagwenywa izithiyo futhi kungashintshwa uma kudingeka. Ama-RTG crane avame ukusetshenziswa kuma-terminals aphakathi nendawo kanye namachweba amancane lapho ukuguquguquka nokuzivumelanisa nezimo kubalulekile khona.
Ngakolunye uhlangothi, i-I-RMGifakelwe ezitimeleni futhi isebenza ngendlela engaguquki. Umklamo unikeza ukuguquguquka okukhulu nokucaca ekuphatheni izinto. Ama-RMG cranes ngokuvamile asetshenziselwa izinto ezinkulu ezifakwe ezitsheni ezidinga imisebenzi eminingi. Ukuma kwesitimela kuvumela isitsha ukuthi siphakanyiswe futhi sithuthwe amabanga amade, okwenza sibe yindawo efanele yokugcina kanye neyokugcina impahla.
Omunye umehluko obalulekile isivinini namandla. Ama-RMG ngokuvamile anomthamo omkhulu wokuphakamisa futhi angasebenza ngesivinini esiphezulu kune-RTG. Lokhu kwenza ama-RMG cranes afaneleke kakhulu emisebenzini emikhulu lapho isikhala siphezulu khona.
Ngamafuphi, ama-RTG nama-RMG womabili abalulekile ekuphatheni izitsha, kodwa umehluko wawo ekusebenzeni, ekwakhiweni, kanye namakhono okusebenza wenza afanelekele izindawo nezidingo ezahlukene. Ukuqonda umehluko kungasiza abaqhubi be-crane yeselula ukuthi bakhethe i-crane efanele izidingo zabo, kwandise umkhiqizo kanye nokusebenza kahle kwemishini yabo yokuphatha izitsha.
Isikhathi sokuthunyelwe: Ephreli-10-2025