bellow Re-rolling machine is used to re-roll the product made by the bellow making machine, in order to make the product to reach bellow standard specification and shape requirement, meantime it can betterment the bellow nature and improve the flexibility and expansion capability, thus the bellow can be more flexible without broken, and the life cycle can be much longer. Re-rolling machine is necessary in the bellow making equipment, it can re-roll many sizes of bellow, the re-rolling machine is light, and simple, it can easily operated.