Iikhreyini zeebhulorho eziphantsi kwehunglukhetho olulungileyo kwifektri kunye neendawo zokugcina iimpahla ezifuna ukukhulula izithintelo zendawo yomgangatho kunye nokwandisa ukhuseleko kunye nemveliso. Iikhreyini eziphantsi kwe-underslung (ngamanye amaxesha zibizwa ngokuba yi-underslung bridge cranes) akufuneki zixhase iintsika zomgangatho. Oku kungenxa yokuba ngokuqhelekileyo bakhwela kwiiflange ezisezantsi zemiqadi yomgaqo weenqwelo-moya enqunyanyiswe kuphahla lwendawo okanye iiplanga.
Ngokulungiselela ukufikelela ekupheleni, ukuxhonywaibhulorho iikhreyini zisebenzisa kakhulu indawo yoncedo. Oko kukuthi, bavumela ii-cranes ukuba zikhwele kufuphi neelori zokugqibela okanye iziphelo zendlela yeenqwelo-moya kunee-cranes ezihamba phambili. Ubumbeko obunganqunyanyiswanga ngaphantsi kwakhona kwandisa indlela yokufikelela ekupheleni kwebhulorho, okanye umgama weepali zebhulorho ukusuka eludongeni okanye ekupheleni komgaqo weenqwelo-moya.
UIikhreyini ze-nderhung zinomthamo omncinci wokuphakamisa ngenxa yokuba imiqadi ixhonywe eluphahleni lwesakhiwo. Ngaphambi kokukhetha iphantsiisalungi ibhulorhoikhreyini, kufuneka uvavanye amandla okwakhiwa kophahla lweziko. Imiqadi yenkxaso inokongezwa ukwandisa umthamo womthwalo.
Uphakamileyo kwi-I-Beams ngamandla, ukuqina, kunye nokungaguquguquki.
Ubomi bomkhondo obandisiweyo xa kuthelekiswa ne-I-Beam Systems.
Ukwandiswa kwenkqubo kulula kwaye kuyabiza.
Iireyile ezithe tye zikhokelela kufakelo olulula, oluqikelelwayo, oluneendleko ezifanelekileyo.
Izakhono zokwaleka ngokufanelekileyo kuphelisa iindleko ezongezelelweyo ezixhasayo.
Ukunqunyanyiswa okuguquguqukayo kubonelela ubomi obude kunye nokugcinwa okuncinci.
Enye inzuzo enkulu yephantsizixhonyiwe iikhreyini eziphezulukukuguquguquka kwabo ukuhamba kwindawo yonke. I-Underhungibhulorho ii-cranes ziyakwazi ukusondela ekupheleni kweendlela zeenqwelo-moya kunye neebhulorho, ezibonelela ngeendawo ezininzi ezinokuthi zifikeleleke ngee-cranes eziphantsi. I-crane hook nayo ilula kumqhubi ukuba ayiqhube kuba incinci kwaye ibonelela ngokuguquguquka ngakumbi kwibhulorho.
I-SEVENCRANE inokukunceda uphonononge zonke iinketho zecrane ezikhoyo kwaye ukhethe eyona ifanele isicelo sakho kunye nendawo. Basenokukucebisa kwiinkqubo zogcino ukuze ugcine i-crane yakho isebenza ngokugqibeleleyo kunye nokuthembeka.
