... is a thread producing machine which uses its three thread rolling dies, mounted in the same separationangle of 120°,to ... ferrous metal,with elongation>10%,tensile strength<1000MPa,and hardnessmaximum rolling pressure 63KN diameter of main shaft 45mm maximum width of ... main shaft ±6° maximum diameter of rolling die 155mm maximum center distance 95mmMax. rolling dia.120mm maximum diameter range 14-42mm ...