3.3.1 4-roller planetary tube rolling mill

Four tapered rollers of the 4-roll planetary rolling mill inter se arranged 90.and rotate around rolling, then reduce the sectional area of rolling. Equipment features: l Roller center is adjustable, no need setting groove. l Finished length isn’t limited by the length of piercing mandrel, the length of steel pipe can be rolled 50m, the yield of product is high. l The material without torsion during the process of deformation, since the good quality of finished product surface. l The material without torsion during the process of deformation, it can be combined with finishing rolling to form a continuous rolling. .