The DEMA mobile roller sorters are extremely suitable for sorting potatoes and onions, among other things. The sorting principle is identical to the system of a roller set on the receiving hopper, where the opening is infinitely adjustable. Efficiency is lower than that of a web sorter but the permissible flow rate is much higher. The ideal machine for gross (pre)sorting at a decent speed.
Besides these standard mobile roller sorters, many other versions are possible for cleaning and sorting your product.