The grain to be grinded enters the vaulting machine through the product inlet chamber and reaches the rolls of waltz through the countersunk rollers. With the aid of capacitive level sensors or Loadcell, the amount of grain distributed to the rolls of waltzes can be adjusted via the subsidiary country. Vals The pneumatic system is used for placing / removing the balls and adjusting the distance between the balls. The fine adjustment arms can be equipped with an electric system with step or servo motors, and a homogeneous product flow between the cylinders is achieved thanks to the special air channel system.