This longitudinal sorting machine is used for the calibration of longitudinal shape vegetables (carrot, parsley root, etc.) depending on their length. These sorting machines are used mostly for rejecting broken or too short vegetables. Vegetables are sorted by sliding them along the properly profiled stainless steel board. Vegetables are moved by vibrations whose frequency may be adjusted by means of an inverter. Vegetables with the length shorter than the gap set fall onto the crosswise conveyor and they are transported to e.g. jumbo boxes.