A 3-roll late bending machine is a core metalworking device designed to shape fat metal plates into cylindrical,conical,or curved  workpieces through three synchronized rols.Its key function lies in the coordinated rotation and adjustment of the upper roll and two  lower  rlls:the  lower  rolls  provide  driving  force  to  feed  the  plate,while  the  upper  roll  applies  downward  pressure  and  adjusts  its position to control the bending radius.Unlike 2-roll machines,it eliminats the need for pre-bending the plate ends,enabling one-step  forming of complete circular or curved parts with high precision and consistency.