Automatic Palm Date Size Sorting And Grading Machine

The professional date sorting and grading machine is a high-precision automated equipment specifically designed for dates (palm dates, dates), plums, jujubes, and other small and medium-sized stone fruits.
It uses precise roller gap adjustment technology to achieve automated and accurate grading by size.

This machine uses a purely mechanical physical sorting method, ensuring efficient operation while perfectly protecting the appearance of the fruit. It is a core sorting equipment for the date processing and packaging industry.

Palm Date Sorting and Grading Machine Working Principle

• Flexible roller conveyor system: Uses food-grade silicone-coated rollers with a soft surface and moderate friction, ensuring that dates roll smoothly during conveying without damaging the skin.
• Adjustable grading gap: The grading area adopts a progressively widening design, with the distance between adjacent rollers gradually increasing from the inlet to the outlet. Dates smaller than the current gap naturally fall into the corresponding grade collection trough.
• Multi-stage sorting and collection: The standard configuration can achieve simultaneous sorting of 3-6 size grades, with each grade having an independent discharge channel that can be directly connected to the packaging line or turnover boxes.
• Secondary screening guarantee: A large fruit collection area is provided at the end to ensure that all sizes of dates are accurately classified into the corresponding grades, with a sorting accuracy of ±1.5mm.

Palm Date Sorting and Grading Machine Core Advantages

• Excellent sorting accuracy: Using high-precision bearings and gap locking mechanisms, the grading consistency reaches over 98%, meeting the strict size requirements of high-standard markets such as the Middle East and Europe.
• Ultimate fruit protection: Flexible sorting without impact or squeezing throughout the process, with a skin damage rate of less than 0.3%, maximizing the commercial value of the dates.
• High processing capacity: Single machine processing capacity of 500-2000 kg/hour, stable and reliable 24-hour continuous operation, perfectly matching the concentrated processing needs of the date harvest season.
• Highly Adaptable Design: By adjusting the roller parameters, the machine is compatible with mainstream date varieties such as Deglet Noor, Medjool, and Barhi, as well as both pitted and unpitted dates.

Frequently Asked Questions

• Q: Can the machine handle dates with different moisture content?
  A: Yes. The equipment is optimized for the characteristics of dates, and can stably sort both soft (high moisture) and semi-dried dates. The roller speed can be adjusted to accommodate different conditions.
• Q: Will the pits affect the sorting accuracy?
  A: Basically, no. The roller grading system sorts based on the maximum outer diameter; the internal structure of the fruit does not affect the sorting results. The sorting effect is even better for pitted dates.
• Q: How does it handle dates that are stuck together?
  A: The equipment can be optionally equipped with a flexible loosening device at the front end, which gently separates clustered fruits during the conveying process, avoiding damage caused by manual separation.
• Q: Can it be adapted to our existing production line?
  A: Absolutely. The equipment’s inlet and outlet heights are customizable and can be seamlessly integrated with washing machines, dryers, and packaging machines. We provide free production line layout consulting services.

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