Kuswa sitima yaikulu, monga ntchito yofunika kwambiri potumiza katundu padziko lonse lapansi

Sitima yonyamula katundu wambiri ndi sitima yonyamula katundu wolemera, waukulu, mabokosi, ndi mitolo ya katundu wosiyanasiyana. Sitima zonyamula katundu zimanyamula ntchito zosiyanasiyana zonyamula katundu pamadzi, pali sitima zonyamula katundu wouma ndi sitima zamadzimadzi zonyamula katundu, ndipo sitima zonyamula katundu wambiri ndi mtundu wa sitima zonyamula katundu wouma. Nthawi zambiri zimatchedwa sitima yonyamula katundu yolemera matani 10,000, zikutanthauza kuti mphamvu yake yonyamula katundu ndi pafupifupi matani 10,000 kapena kupitirira matani 10,000, ndipo kulemera kwake konse ndi kusuntha katundu wonse ndi kwakukulu kwambiri.

Zombo zonyamula katundu nthawi zambiri zimakhala zombo zokhala ndi malo awiri, zokhala ndi malo osungira katundu 4 mpaka 6, ndi malo osungira katundu pa malo aliwonse osungira katundu, ndipo ndodo zonyamula katundu zomwe zimatha kunyamula matani 5 mpaka 20 zimayikidwa mbali zonse ziwiri za malo osungira katundu. Zombo zina zimakhalanso ndi ma crane olemera onyamula katundu wolemera, omwe amatha kunyamula matani 60 mpaka 250. Zombo zonyamula katundu zokhala ndi zofunikira zapadera zimakhala ndi ma booms akuluakulu onyamula katundu wooneka ngati V omwe amatha kunyamula matani mazana ambiri. Pofuna kupititsa patsogolo ntchito yonyamula katundu ndi kutsitsa katundu, zombo zina zonyamula katundu zimakhala ndi ma crane ozungulira.

Palinso sitima yonyamula katundu yogwiritsidwa ntchito m'njira zosiyanasiyana, yomwe imatha kunyamula zakudya zophikidwa m'matumba, komanso imatha kunyamula katundu wambiri komanso wodzaza ndi zinthu zina. Sitima yonyamula katundu yamtunduwu ndi yoyenera komanso yothandiza kuposa sitima yonyamula katundu wamba yomwe imanyamula katundu mmodzi.

Sitima zonyamula katundu wambiri zimagwiritsidwa ntchito kwambiri ndipo zimakhala pamalo oyamba pa kuchuluka kwa sitima zapamadzi zamalonda padziko lonse lapansi. Kuchuluka kwa sitima zonyamula katundu wamba zomwe zikuyenda m'madzi akumidzi kuli ndi matani mazana ambiri, matani masauzande ambiri, ndipo sitima zonyamula katundu wamba zomwe zimayenda m'nyanja zimatha kufika matani opitilira 20,000. Sitima zonyamula katundu wamba zimafunika kukhala ndi chitetezo chabwino komanso chotsika mtengo, popanda kuthamangitsa liwiro lalikulu. Sitima zonyamula katundu wamba nthawi zambiri zimayenda m'madoko malinga ndi momwe katundu amakhalira komanso zosowa za katundu, ndi masiku okhazikika otumizira ndi njira zotumizira. Sitima yonyamula katundu wamba imakhala ndi kapangidwe kamphamvu kwambiri, pansi pa sitimayo nthawi zambiri pamakhala kapangidwe kawiri, uta ndi kumbuyo kwake zili ndi matanki akutsogolo ndi kumbuyo, omwe angagwiritsidwe ntchito kusungira madzi abwino kapena kunyamula madzi kuti asinthe mawonekedwe a sitimayo, ndipo amatha kuletsa madzi a m'nyanja kulowa mu thanki yayikulu ikagundana. Pali malo awiri mpaka atatu pamwamba pa sitimayo, ndipo malo angapo osungira katundu amakhazikitsidwa, ndipo malo osungira katundu amaphimbidwa ndi malo oletsa madzi kuti asalowe madzi. Chipinda cha injini kapena chokonzedwa pakati kapena chokonzedwa kumbuyo, chilichonse chili ndi zabwino ndi zoyipa, chokonzedwa pakati chimatha kusintha kapangidwe ka chivundikirocho, kumbuyo kumathandiza kukonza malo osungira katundu. Ndodo zonyamulira katundu zimaperekedwa mbali zonse ziwiri za chitsekocho. Pokweza ndi kutsitsa zinthu zolemera, nthawi zambiri chimakhala ndi derrick yolemera. Pofuna kukonza zombo zonyamula katundu kuti zizitha kusinthasintha bwino ponyamula katundu wolemera, zimatha kunyamula katundu wamkulu, zida zolemera, ziwiya, zakudya, ndi katundu wolemera, zombo zamakono zatsopano nthawi zambiri zimapangidwa ngati zombo zogwirira ntchito zosiyanasiyana.

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