Bellow re-rolling machine includes DN100-1200mm, DN 860-3000mm, bigger size can be customed. 

The Bellows re-roller is used to modify the bellow’s shape after convolution formed by the auto punch bellow forming machine. It can increase the convolution height and narrow the pitch, to make up the deformed convolution shape and specification caused by material ductility. 

There are 2 types of bellow re-roller: one type is to auto control the pressing distance through the Siemens control system, the other one is manually control the pressing distance by an operator.