Ibikoresho byo gukururana bya feri bigizwe na resin ya phenolic, mica, grafiti n'ibindi bikoresho fatizo, ariko igipimo cya buri bikoresho fatizo kiratandukanye bitewe n'uburyo butandukanye. Iyo dufite formula y'ibikoresho fatizo isobanutse neza, tugomba kuvanga ubwoko burenga icumi bw'ibikoresho kugira ngo tubone ibikoresho fatizo bikenewe. Imvange ihagaze ikoresha uburyo bwo kuzunguruka bwihuse bwa screw kugira ngo ikure ibikoresho fatizo kuva hasi ku icupa kuva hagati kugera hejuru, hanyuma ikabijugunya mu buryo bw'umurambararo hanyuma ikabisubiza hasi. Muri ubu buryo, ibikoresho fatizo bizunguruka hejuru no hasi mu icupa kugira ngo bivangwe, kandi umubare munini w'ibikoresho fatizo ushobora kuvangwa neza mu gihe gito. Kuvanga uruziga rw'imizunguruko y'imvange ihagaze bituma ibikoresho fatizo bivangwa neza kandi vuba. Ibikoresho bihuye n'ibikoresho n'ibikoresho fatizo byose bikozwe mu cyuma kitagira umugese, byoroshye gusukura kandi birinda ingese.
Ugereranyije n'imashini ivanga ibikoresho byo mu bwoko bwa plough rake, iyi mashini ivanga ibikoresho ikoresheje vertical mixer ifite ubushobozi bwo gukora neza, ishobora kuvanga ibikoresho fatizo neza mu gihe gito, kandi ihendutse kandi ihendutse. Ariko, bitewe n'uburyo bworoshye bwo kuvanga, biroroshye gusenya bimwe mu bikoresho bya fibre mu gihe cy'akazi, bityo bigira ingaruka ku mikorere y'ibikoresho byo gushwanyagurika.