Roll frame with improved product collection

A roll frame for the production of foodstuffs and animal feed, comprising a product inlet, a grinding chamber with grinding rolls, into which grinding chamber bulk material to be ground can pass from the product inlet, and a product outlet unit which is arranged below the grinding chamber and into which product from the grinding chamber can pass, wherein

• the product outlet unit comprises a hopper having a conveying worm in its lower region which is remote from the grinding chamber, wherein the conveying worm has two portions which convey in opposite directions, in order to convey product out of the lower region of the hopper to a single outlet opening in the bottom region of the hopper, the single outlet opening configured for continuous product discharge during mass flow operation.