Umukandara, uzwi kandi ku izina ry'umukandara, ukoreshwa cyane mu nganda z'ibiribwa muri iki gihe. Umukandara Carvelayer arashobora gutoranywa ukurikije ibisabwa, nkibikorwa bisanzwe bikomeza, injyana ikora ibikorwa, imikorere yihuta nubundi buryo bwo kugenzura; Umukandara wa convelayer agomba kandi gutorwa ukurikije imiterere yaho. Nkuko convelaice ya umukandara igira uruhare rwinshi munganda zitandukanye, nibikoresho byingenzi byingirakamaro muri convoyeur. Kubwibyo, uburyo bwo guhitamo neza umukandara kandi ningirakamaro kandi kumushinga.
Iyo duhisemo convoyeri, tugomba kubanza kumenya ibintu byinshi nkibikoresho byumukandara wa convoye, ibipimo bya tekiniki byintwaro, nibindi ukurikije inganda zikoreshwa. Kurugero, umukandara wa rubber ubereye ubushyuhe bwibidukikije hagati ya dogere 15 na dogere 40, kandi ubushyuhe bwibikoresho ntiburenga dogere 50. Umukandara wa pulasitike ufite ibyiza byo kurwanya amavuta, aside na alkali, ariko bifitanye isano nabi nikirere, kandi biroroshye kunyerera n'imyaka. Icya kabiri, dukeneye guhitamo neza umukandara wumukandara. Muri convoyeri ndende itambitse, umuvuduko mwinshi ugomba guhitamo; Inshi cyane impengamiro ya convoyeur, mugufi intera ya fuselage, hepfo umuvuduko wa convoyer umukandara.