The slot-roller calibrator is designed to separate fruit and vegetables according to size (in particular carrots, parsley, etc.).

The size of the calibration slot is adjusted by changing the distance between the upper roller guide and the lower roller chain. The calibrator sorts the product according to the smallest dimension.

The device can be equipped with three conveyors collecting individual fractions of the raw material. The product, the size of which exceeds the maximum dimension chosen on the last section, is directed to the provided container.