Jirgin ruwa line ne a kan wani layi ci gaba da jigilar kaya handling inji, bisa ga jigilar jerin kayayyakin za a iya raba a gaba ɗaya zuwa: Belt jigilar ruwa line, board sarkar layi, multiplex sarkar layi, plug layi, cibiyar layi line, dakatarwa layi da kuma madaidaicin jigilar ruwa line bakwai nau'ikan jigilar ruwa line. Gabaɗaya sun haɗa da sassan jawo, sassan ɗaukar kaya, na'urar tuki, na'urar tensioning, na'urar canzawa da na'urar goyon baya da sauransu. Mai jigilar kaya zai iya yin kwance, karkata da tsaye jigilar kaya, kuma zai iya ƙirƙirar layin jigilar kaya na sararin samaniya, layin jigilar kaya yawanci yana da tsayayye. Layin jigilar ruwa yana da babban damar jigilar ruwa, dogon nesa, kuma ana iya kammala ayyukan aiki da yawa a lokaci guda yayin jigilar ruwa, don haka aikace-aikacen yana da yawa.