Qhov ntev ntawm ib nrab-trailer feem ntau yog nyob ib ncig ntawm 13 meters, thiab nws qhov ntev tag nrho yuav tsum tsis pub tshaj 13.75 meters. Feem ntau ib nrab- trailer dav suav nrog 2.5 meters, 2.55 meters, 2.8 meters, thiab 3 meters, thaum 13 meters yog qhov ntev tshaj plaws. Hauv lub neej niaj hnub, hom semi{11}}trailer no yog siv los thauj ntau yam khoom.
Raws li "Technical Specifications for Low- Flatbed Semi-Trailers," dump semi-trailers yog tsheb siv los thauj cov khoom loj xws li thee, ore, thiab cov khoom siv hauv tsev. Cov tsheb no feem ntau muab faib ua ob pawg:
Ib qeb yog hnyav-lub luag haujlwm thiab super- hnyav- cov tsheb thauj khoom hnyav. Cov tsheb no feem ntau yog siv rau kev tawm ntawm- kev thauj mus los hauv kev loj, ua cov haujlwm thauj mus los hauv cov mines loj thiab cov haujlwm engineering. Lawv feem ntau yog siv ua ke nrog excavators kom tiav kev thauj mus los ntawm ntau yam khoom hnyav.
Lwm pawg yog me me thiab nruab nrab- cov tsheb thauj khoom loj loj, tsim nyog rau kev thauj mus los, feem ntau yog siv los thauj cov khoom xoob xws li xuab zeb, pob zeb, av, thiab thee. Cov tsheb no feem ntau yog siv ua ke nrog cov loaders kom tau raws li kev xav tau kev thauj mus los hauv cov xwm txheej sib txawv. Qhov ntev thiab dav ntawm ib nrab -trailer sib txawv nyob ntawm seb hom haujlwm thiab qhov yuav tsum tau ua.
