Jirgin ruwa Loader ne babban bulk inji da ake amfani da a bulk tashar jirgin ruwa Loading. General shipment inji ya kunshi da hannu belt inji, sauyawa belt inji, retractable cylinder, tail truck, tafiya na'urar, ƙofar rack, hasumiya, bending na'urar, juyawa na'urar, da dai sauransu, kamar yadda aka nuna a Figure 1. Manyan tashoshin jiragen ruwa masu yawa suna taka muhimmiyar rawa a cikin babban sauri, kwanciyar hankali, tasiri, ci gaban makamashi, wutar lantarki, karfe, tashoshin jiragen ruwa da sauran masana'antu, musamman wasu manyan tashoshin jiragen ruwa masu yawa. Jirgin ruwa Loader yawanci ne ci gaba da jirgin ruwa aiki. Saboda haka dole ne a sami kayan aiki tare da su don samar da ci gaba da kwararar kayan aiki don ɗaukar jirgin ruwa ya iya ci gaba da ɗaukar jirgin ruwa. Kamar abinci tashar jirgin ruwa na hatsi, ci gaba da ciyar da injin ciyar da kayan kwal a tashar jirgin ruwa.

Ci gaban hadewar cinikayya ta duniya ya inganta buƙatar jigilar kaya a duniya, daga babban nau'ikan kayayyaki, karuwar jigilar kaya ta ƙarfe, kwal, abinci da sauran kayayyaki yana ƙaruwa cikin sauri. Tare da wannan ci gaban akwai ci gaba da sabuntawa na jiragen ruwa masu jigilar kaya. Wannan ya haifar da bukatar kayan aikin jigilar jirgin ruwa masu yawa don gina manyan tashoshin jiragen ruwa masu iya tsayawa da ɗaukar waɗannan manyan jiragen ruwa, ƙarin nau'ikan jigilar jirgin ruwa yana haifar da sabbin kalubale ga ƙirar kayan aikin jigilar jirgin ruwa da ƙirar kayan aikin jigilar jirgin ruwa. Dangane da ci gaban kayan aikin sarrafa kansa, wasu ci gaban kayan aikin jigilar kaya za a iya hango.