Idizayini Yesakhiwo: Ama-crane amabhuloho angaphansi kwe-hung abonakala ngedizayini yawo ehlukile lapho ibhuloho nokuphakanyiswa kumiswe phansi kusukela phansi kwemishayo yemigwaqo yezindiza, okuvumela u-crane ukuthi usebenze ngaphansi komzila wezindiza.
Amandla okulayisha: Lawa makhreni aklanyelwe izinhlelo zokusebenza ezilula ukuya ezimaphakathi, ezinamandla okulayisha ukusuka kumaphawundi angamakhulu ambalwa ukuya kumathani ambalwa.
I-Span: Ubude besikhathi sama-cranes abahungiweyo ngokuvamile bukhawulelwe kakhulu kunaleso sokhreni abagijima phezulu, kodwa basengakwazi ukumboza izindawo ezinkulu.
Ukwenza ngendlela oyifisayo: Naphezu komthamo wabo ophansi womthwalo, ama-cranes ahungekile angenziwa ngendlela oyifisayo ukuze afanele izidingo ezithile zokusebenza, okuhlanganisa ukuhluka kobude be-span namandla okubamba umthwalo.
Izici zokuphepha: Ama-cranes angaphansi ahlome ngezici zokuphepha ezifana namasistimu okuvikela ukugcwala kakhulu, izinkinobho zokumisa izimo eziphuthumayo, amadivayisi avimbela ukushayisana, namaswishi anomkhawulo.
Izilungiselelo Zezimboni: Ama-cranes amabhuloho angaphansi kwe-underhung asetshenziswa ezitshalweni zensimbi ezisindayo, izitshalo eziginqikayo, izimayini, izimboni zephepha, izimboni zikasimende, izimboni zikagesi, nezinye izindawo ezisindayo zezimboni.
Ukuphatha Izinto: Zilungele ukuphakamisa nokuthutha imishini emikhulu, izinto ezisindayo, nezinto ezinkulu.
Izimo Ezinqunyelwe Isikhala: Lawa ma-cranes afaneleka kakhulu izindawo lapho indawo yaphansi ilinganiselwe noma lapho kudingeka khona i-headroom ephezulu.
Ukuhlanganiswa Kwezakhiwo Ezikhona: Ama-cranes angaphansi kwe-Underhung angahlanganiswa nezakhiwo zokwakha ezikhona, okuzenze zibe yisixazululo esisebenzayo sohlu lwezinhlelo zokusebenza zokuphatha izinto ezilula ukuya ezimaphakathi.
Izingxenye eziyinhloko zekulengiswaama-cranes amabhuloho ahlanganisa i-main beam, i-end beam, i-trolley, ingxenye kagesi kanye negumbi lokulawula. I-crane yamukela ukwakheka okuhlangene kanye nokwakheka kwesakhiwo se-modular kanye nokuhlanganisa, okungasebenzisa kahle ubude obukhona bokuphakamisa futhi kunciphise ukutshalwa kwezimali kusakhiwo sensimbi yokusebenzela.Ibhuloho elingaphansiama-cranes avivinywa ngokuqinile nokulawulwa kwekhwalithi ngaphambi kokulethwa ukuze kuqinisekiswe ukuthi ahlangabezana nemingcele yokusebenza efana nomthamo wokuphakamisa, ukuphakama nobude.