Girman allon ulu na ma'adinai ya kasu kashi zuwa girman ma'auni da girman sarki a cikin tsarin naúrar.Wannan shi ne saboda bambanci a cikin juyawa na tsarin tsarin naúrar ma'adinan ulu mai ma'adinai a gida da waje.A haƙiƙa, allunan ulun ma'adinai da aka saba amfani da su sun kasu zuwa girman ƙima da girman gaske.

Matsakaicin girman allo na ulun ma'adinai yana nufin tazarar madaidaiciya tsakanin keels guda biyu da ke kusa da juna a cikin rufin da aka dakatar da siffa mai siffar grid lokacin da aka ɗaga allon ulun ma'adinai, wato, girman allon ulun ma'adinai tare da gefen keel ɗin da muke. zai iya gani bayan an gama hawan hawan.Matsakaicin girman allon ulu na ma'adinai yana nufin girman ma'aunin ulun ma'adinai wanda za mu iya aunawa.Ainihin girman yawanci ya fi ƙanƙanta fiye da girman ma'auni na allon ulu na ma'adinai.Saboda ma'adinan ulu na ma'adinai ya yi la'akari da nisa na keel, kurakuran shigarwa, da dai sauransu a lokacin shigarwa na ma'adinan ulu na ma'adinai, wajibi ne a ajiye wuri mai dacewa a lokacin samarwa da yanke katako na ma'adinai;ya danganta da kauri na keel ɗin tallafi da masana'antun daban-daban ke amfani da su, yawanci Ajiye 5-7mm.Ainihin girman ma'adinin ulun ma'adinai yana nunawa a fili a cikin ulun ma'adinai mai daraja.A wannan lokacin, girman girman gefen ma'auni na katako na ulun ma'adinai za a kiyaye shi a fili, wanda ya dace da ainihin shigarwa.

A cikin ainihin amfani da ƙididdiga, muna kiran girman ma'adinin ma'adinan ma'adinai na ma'auni na ma'adinai na ma'adinai, wanda shine don sauƙaƙe ainihin ƙirar rufin da kuma amfani da katako na ma'adinai.The maras girma girma dabam na kowa ma'adinai ulu jirgin bayani dalla-dalla ne 300 * 600mm, 600 * 600mm, 600 * 1200mm.Wadannan ana amfani da su don talakawa murabba'in rufi.Ana amfani da ƙayyadaddun ƙayyadaddun 300 * 600mm don ma'adinan ulu na ma'adinai na ma'adinai;yanzu mafi mashahuri tsiri ma'adinai ulu hukumar Nominal masu girma dabam ne: 300/400/600mm*1200/1500/1800/2100/2400mm, da dai sauransu The kauri daga cikin ma'adinai ulu hukumar ne yawanci 9mm, 14mm, 15mm, 16mm, 18mm, da dai sauransu ., bisa ga ainihin buƙatu da ƙarfin samarwa na masana'anta.19mm, 20mm, da dai sauransu.