Ƙarƙashin bel ɗin ratsawa ta hanyar harbin iska mai ƙarfi yana amfani da bel ɗin saƙar raga a matsayin mai ɗaukar kayan aikin.Ɗayan ƙarshen ɗakin fashewar harbe-harbe shine tashar lodi, ɗayan ƙarshen kuma shine tashar saukewa.Lokacin aiki, ana sanya sassan a kan bel mai ɗaukar kaya a tashar lodi, kuma bel ɗin mai ɗaukar nauyi a hankali ya shiga ɗakin fashewar harbi don fashewar fashewar, sannan an cire kayan aikin a tashar saukarwa.The raga bel harbi ayukan iska mai ƙarfi inji yana da halaye na mai kyau ci gaba, babu karo, high tsaftacewa yadda ya dace, babban samar tsari, babu rami, da dai sauransu An yafi amfani da surface ayukan iska mai ƙarfi na bakin ciki-banga simintin gyaran kafa, m baƙin ƙarfe ko aluminum gami simintin gyaran kafa, tukwane, tukwane. da sauran kananan sassa.Hakanan za'a iya amfani da tsaftacewar harbi don fashewar sassa na inji.