Izimithi zokuthwala izinkundla zokuthwala amaphiko ziyiziqondiso ezinkulu ezisebenzisa kulezi zinsizakalo nezinkundla. Zisiza ekuthwalweni kwamaphiko nezinkundla ngokukhawuleza nokusebenza ngokuphelele. Lezi zimithi zisebenzisa isiliva sokuhamba esihlukile ukusebenza. Uma isiliva siphuma ngendlela yomthwala, sibuka izivumelwano ezingakhulu, okuzosula amathuba ayingakanani. Izikampani zama-Mazellion ziyadala lezi zimithi ngotechinoloji eyenkulu, futhi ziyasiza ukuthi zibe yizinkulu nezisusa. Abantu abaningi baphatha izo zimithi zonke izinsuku ukusebenza kwabo, ngoko ke kubalulekile ukuthi zisebenze ngokuphelele futhi zingasebenziswa ngokuphelele. Lokhu kufanele kuchazwe izinqumo ezinkulu zezimithi zokuthwala izinkundla zokuthwala amaphiko ezinkulu futhi ukuthi yini okufanele ukuzifunda ukuze uzifunde ngokuphelele.
Imishini yokuqhumisa idwala enomoya esezingeni eliphakeme inezici eziningi ezibalulekile. Okokuqala, kufanele abe namandla. Imoto enamandla isiza umshini wokuqhumisa ukuba uphume ezindaweni ezinzima. Lokhu kubalulekile lapho kusetshenziswa amatshe aqinile noma ukhonkolo osindayo. Lapho amandla omshayeli eba makhulu, umsebenzi uya ngokushesha. Okulandelayo, isisindo somshini sibalulekile. I-pneumatic rock drill enhle kufanele ibe nesisindo esanele sokungena ebusweni kodwa ibe lula ngokwanele ukuba abasebenzi bayiphathe kalula. Uma sinzima kakhulu, izisebenzi zingase zikuthole kunzima ukusilawula, okungaholela ezingozini noma ekulimaleni. Futhi, ukuklama kufanele kuvumele ukusebenziseka kalula. Imishini yokuqhuba engafakwa ezindaweni ezincane yenza kube lula ngabasebenzi ukufinyelela ezindaweni ezinzima. Ngokwesibonelo, ezinye izinhlobo Izithakazelo zokubhula zenzelwe ngokukhethekile le njongo.