Esi sikhokelo sibanzi siphonononga imiba ebalulekileyo ekufuneka iqwalaselwe xa ukhetha a Iitoni ezingama-20 ngaphezulu kwekhreyini. Siphengulula kwiindidi ezahlukeneyo, iinkcukacha eziphambili, iingqwalasela zokhuseleko, kwaye sinikezela ngeengcebiso ezisebenzayo ukukunceda wenze isigqibo esinolwazi malunga nesicelo sakho. Ukusuka ekuqondeni umthamo womthwalo kunye nokuphakama kokuphakama ukuya ekukhetheni umthombo wamandla ofanelekileyo kunye nokuqwalasela ukugcinwa, esi sikhokelo sibonelela ngendlela ecacileyo yokufumana okugqibeleleyo. Iitoni ezingama-20 ngaphezulu kwekhreyini.
A Iitoni ezingama-20 ngaphezulu kwekhreyini yenzelwe ukuphakamisa kunye nokuhambisa imithwalo enzima ukuya kwiitoni ze-metric ezingama-20. Nangona kunjalo, umthamo wokwenyani unokwahluka ngokuxhomekeke kwizinto ezifana nomjikelo womsebenzi (izihlandlo kunye nobude bexesha lokusetyenziswa) kunye noyilo lwecrane. Iikhreyini ezinobunzima obunzima bakhelwe ukujongana nomsebenzi oqhubekayo, ngelixa iikhreyini ezinomsebenzi olula zinokulungela ukusetyenziswa okwethutyana. Soloko ujonga iinkcukacha zomenzi ukuqinisekisa ukuba umthamo womthwalo wekhreyini uhambelana neemfuno zakho zokusebenza. Kufuneka kwakhona uqwalasele iimfuno zexesha elizayo; ingaba ikhona imfuneko yokuba iimfuno zakho zokuphakamisa zidlule iitoni ezingama-20 kwixesha elizayo?
Iindidi ezininzi ze Ii-cranes ezingaphezulu kweetoni ezingama-20 ziyafumaneka, nganye ilungele usetyenziso oluthile. Ezi ziquka:
I-span ibhekisa kumgama ophakathi kweekholamu zekhrane, ngelixa umphakamo ungowona mgama uphezulu ihuku inokuhamba ngokuthe nkqo. Le milinganiselo ibalulekile ekumiseleni ukufikelela kwecrane kunye nokufaneleka kwendawo yakho yokusebenza. Imilinganiselo echanekileyo yendawo yakho ibalulekile ngaphambi kokuba uthenge.
Ii-cranes ezingaphezulu kweetoni ezingama-20 inokuthi inikwe amandla yimithombo eyahlukeneyo, kubandakanywa iimoto zombane (eziqhelekileyo ngokuthembeka kwazo kunye nokusebenza kakuhle), iinjini ze-diesel (ezifanelekileyo kwiindawo zangaphandle okanye ezikude), okanye iinkqubo ze-pneumatic. Ukhetho luxhomekeke kwizinto ezifana nokubakho kwamandla, iimeko zokusingqongileyo, kunye nohlahlo lwabiwo-mali. Iinjini zombane zihlala zibonakalisa ukuba zezona ndleko zisebenzayo kwixesha elide ngenxa yeendleko eziphantsi zokusebenza.
Ukhuseleko lubalulekile xa usebenza noomatshini abanzima. Iimpawu zokhuseleko ezibalulekileyo a Iitoni ezingama-20 ngaphezulu kwekhreyini ziquka:
| Uphawu | I-Single-Girder Crane | Double-Girder Crane |
|---|---|---|
| Umthwalo womthwalo | Ukuya kuthi ga kwiitoni ezingama-20 (kuxhomekeke kubude kunye noyilo) | Ukuya kuthi ga kwiitoni ezingama-20 nangaphezulu (umthamo omkhulu onokwenzeka) |
| Iindleko | Ngokubanzi usezantsi utyalo-mali lokuqala | Utyalo-mali lokuqala oluphezulu |
| Isondlo | Ukugcinwa okulula | Ulondolozo olunzima ngakumbi |
Ukugcinwa rhoqo kubalulekile ekuqinisekiseni ukuba usebenza ngokukhuselekileyo nangempumelelo Iitoni ezingama-20 ngaphezulu kwekhreyini. Oku kuquka ukuhlolwa rhoqo, ukuthambisa, nokulungiswa njengoko kuyimfuneko. Ukuthobela yonke imimiselo yokhuseleko efanelekileyo kunye nokwenza uvavanyo olucokisekileyo lomngcipheko nako kubalulekile. Ngolwazi oluthe vetshe malunga nemimiselo ethile kwingingqi yakho, dibana nabasemagunyeni basekuhlaleni.
Kukhetho olubanzi lweekhreyini ezikumgangatho ophezulu, kubandakanya Ii-cranes ezingaphezulu kweetoni ezingama-20, cinga ngokujonga iinketho ezikhoyo Suizhou Haicang Automobile Sales Co., LTD. Banikezela ngoluhlu lwezisombululo ezomeleleyo nezithembekileyo ukuhlangabezana neemfuno ezahlukeneyo zokuphakamisa.
Khumbula, ukukhetha okulungileyo Iitoni ezingama-20 ngaphezulu kwekhreyini lutyalo-mali olubalulekileyo. Ukuqwalaselwa ngenyameko kwayo yonke imiba echazwe apha ngasentla kuya kuqinisekisa ukuba ukhetha i-crane ehlangabezana neemfuno zakho ezithile kwaye ibeka phambili ukhuseleko nokusebenza kakuhle.
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