I-Daymeter encinci, ukusuka kwi-75mm ukuya kwi-225mm, i-electrode yethu yegraphite yenzelwe ngokukodwa ukuhlangabezana neemfuno zamashishini afana ne-calcium carbide smelting, ukuveliswa kwe-carborundum, ukucocwa kwe-corundum emhlophe, ukunyibilika kwesinyithi esinqabileyo, kunye neemfuno ze-Ferrosilicon ze-refractory plant.