Key Technology DateSort digital sorter for dates

Key Technology’s DateSort is a gravity-fed digital sorter for grading dates. The compact and mobile sorter combines mechanical pre-cleaning to remove foreign material with optical sorting to grade dates by size.

The two-stage system features a mechanical pre-cleaning and alignment shaker that removes dust, skins, small rocks and leaves, and divides the bulk dates into lanes for optimal presentation to the integrated digital sorter. Singulated dates freefall from the end of the vibratory conveyor into the sorter, where the camera inspects each date.

The sorter analyses the images, comparing each object to the user-defined size criteria. When dates are identified that are larger or smaller than the target size, the sorter activates the ejector system, which is made up of a series of air jets that span the width of the sorter. While still airborne, the air jets pinpoint the dates to reject and automatically remove them from the product stream. Right-size dates are discharged from the sorter and collected in bins or on a conveyor.

The sorter is an entry-level machine, handles 3-4 tons/h and is designed for use at receiving, where processors collect product from farmers. For processors that pit dates, the sorter is suitable for use upstream of the pitting machine.

The simplicity of the mechanics and water cooling enable the sorter to withstand extreme dust and heat up to 50°C.