Za'a iya raba na'ura mai ɗaukar nauyin granule zuwa manyan marufi da ƙananan marufi. Injin marufi na granule ya dace da marufi mai ƙima na granules na roba, granules filastik, granules taki, granules abinci, granules sinadarai, granules hatsi, granules na kayan gini da ƙarfe ƙarfe. Amfanin injin marufi na granule:
1. Nauyin marufi na injin marufi na granule yawanci shine gram 20 zuwa 2 kilogiram. Ana amfani da shi don tattara kayan granular iri-iri. Na'urar tana da ingantaccen aiki da ƙarancin amfani da makamashi. A karkashin yanayi na al'ada, ana iya sanya shi cikin samarwa da samar da wutar lantarki fiye da 300 watts, amma daidaitaccen injin yana da girma sosai, kuma sararin da ke mamaye yawanci shine 4000 mm ta 1000 mm. Ya mamaye ƙaramin yanki, yana da babban amfani da rukunin yanar gizo da ƙarancin kuzari.

2. Granules suna da manyan abubuwan mirgina, kuma ya kamata a biya hankali ga kwanciyar hankali da asarar watsawa na granules lokacin isar da bel. Mai ɗaukar bel ɗin yana ɗaukar ɗan ƙaramin sarari. Tsayinsa ya kai milimita dubu uku kacal kuma faɗinsa millimita ɗari huɗu kacal. An inganta sassaucin bel ɗin sosai, kuma ingancin watsawa ya fi tabbacin. A lokaci guda, saboda ƙarancin ƙarancin mataccen nauyi, ana buƙatar ƙarancin amfani da makamashi. Ƙarƙashin amfani da makamashi da inganci mai girma shine mafi girman halayen na'urar tattara kayan aikin granule. Daidaitaccen injin marufi na granule shine 0.2, kuma matsa lamba yawanci shine 0.4 zuwa 0.6 yanayi.
3. Wannan shine ainihin halin da ake ciki na na'ura mai kwakwalwa na granule, kuma za mu iya amfani da shi don yin aiki mai yawa. Don rage yawan farashin aiki, polypropylene da polyethylene sune mafi kyawun kayan tattarawa.