This machine line is special for refrigerator side panel roller forming which can be suitalbe for different products manufacturing in width and longth, it has advantage for easy adjusting and operating; The machine is composed by following parts: auto loading metal sheet→punching machine→180°turn over→roller forming section→Z-L bending(Z for U bending and L for end 90 °shape),and other parts like pneumatic system and electric control system etc.