Dimetero ntoya ya grafite electrode niyo ihitamo neza mugushongesha porogaramu mubikorwa bitandukanye nka karisiyumu ya calcium, gutunganya karubone, cyangwa gushonga ibyuma bidasanzwe, hamwe n’inganda za Ferrosilicon. ibintu byinshi, izo electrode zitanga imikorere ntagereranywa.Diameter ntoya ya grafite electrode, intera ya diameter kuva kuri 75mm kugeza kuri 225mm