The dry nuts are sorted into various size classes during calibration. This simplifies not only the subsequent cracking of nuts, but also their sale.
For smaller amounts of walnuts, the calibration sieve is suitable. In this way, the walnuts can be sorted into 3 sizes with the help of a sieve-like attachment. For larger nut amounts, the multi-functional washing and calibration machine is used. This calibration machine has exchangeable drum rollers, so that drying, calibration, and separating can take place.