An ngaphandle gantry craneluhlobo lwekhreyini esetyenziswa kwiindawo ezahlukeneyo zemizi-mveliso kunye nolwakhiwo ukuhambisa imithwalo enzima kumgama omfutshane. Ezi cranes zibonakaliswe ngesakhelo esixande okanye i-gantry exhasa ibhulorho eshukumayo ehamba kwindawo apho izinto kufuneka ziphakanyiswe kwaye zihanjiswe. Nantsi inkcazo esisiseko yamalungu ayo kunye nokusetyenziswa okuqhelekileyo:
Amacandelo:
Gantry: Ulwakhiwo oluphambili lwei-gantry crane enkuluequka imilenze emibini edla ngokumiselwa kwiziseko zekhonkrithi okanye kwimizila kaloliwe. I-gantry ixhasa ibhulorho kwaye ivumela i-crane ukuba ihambe ecaleni.
Ibhulorho: Lo ngumqadi othe tye ogudla indawo yokusebenza. Indlela yokuphakamisa, efana ne-hoist, idla ngokuncanyathiselwa kwibhulorho, ukuyivumela ukuba ihambe ngobude bebhulorho.
I-Hoist: Isixhobo esiphakamisa kwaye sithobe umthwalo. Inokuba yi-winch ye-manual okanye yombane okanye inkqubo enzima ngakumbi kuxhomekeke kubunzima kunye nohlobo lwezinto eziphathwayo.
Itroli: Itroli licandelo elihambisa isinyusi ecaleni kwebhulorho. Ivumela indlela yokuphakamisa ukuba ibekwe ngokuchanekileyo phezu komthwalo.
Iqela lenjongo yolawulo: Oku kuvumela umsebenzisi ukuba enze intshukumo yei-gantry crane enkulu, ibhulorho, kunye ne-hoist.
Iikhreyini zegantry zangaphandleziyilelwe ukuba zimelane neemeko zemozulu ezimaxongo, kuquka imvula, umoya, namaqondo obushushu agqithisileyo. Ngokuqhelekileyo zenziwe ngezinto ezinamandla ezifana nentsimbi kwaye zakhiwe ukuba zihlale kwaye zithembeke kwiindawo zoshishino. Ubungakanani kunye nomthamo we-gantry cranes yangaphandle inokuhluka kakhulu ngokuxhomekeke kwiimfuno ezithile zomsebenzi.