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Boasting the highest capacity on the market, the TOMRA 3A is the most reliable and cost-effective optical sorter available for growers. Built to last, it is a durable, powerful, and highly efficient labor-saving solution specifically developed to provide unrivaled foreign material removal and exceed harvest demands. The machine is easy to use, simple to maintain, and its smooth install makes for an easy fit into the harvest cleaning and grading line, or out-of-storage sorting.


The TOMRA 3A utilizes NIR (Near Infra-Red) multi-spectral sensors for an unobstructed assessment of every object, seamlessly identifying between a good product and foreign material. Color sensors also enable the detection of unwanted green potatoes. Positioned at the end of the conveyor belt, intelligent finger ejectors achieve superior foreign material and green potato removal with minimum loss of good product.

The strategic combination of multi-spectral pulsed LED technology, high-resolution cameras, and TOMRA analysis software ensures the accurate and consistent removal of stones, soil clods, rocks, wood, bone, plastic, glass, metal, and rubber.

Enclosed in a fully sealed box, the camera is tolerant of most environmental conditions such as rain, wind, dust, and heat, and the optical system has no moving parts, making the TOMRA 3A the most mobile, dependable, and stable sorter available.


  • Significant Labor Reduction
  • Higher Yields
  • Enhanced Product Quality
  • Superior Foreign Material Removal
  • Reduced Risk of Deductions
  • Green Potato Removal
  • High Capacity for Quicker Harvest (up to 100 Tons/Hour possible)
  • Accommodates Various Soil Types and Coverages
  • Optimized Design for Gentle Handling With Fast and High Capacity Sorts
  • Reduced Storage Costs
  • Consistent Long-Life Accuracy
  • Quick and Easy Installation
  • User-Friendly
  • Simple to Use and Maintain



The farmers at Gumz are a unique breed of problem solvers who spend long days tending to their harvest while getting the most out of their land and hands. Brothers, Richard and Roderick, Gumz represent the fourth generation at their family farm in Wisconsin. The two brothers are committed to a work ethic and a land ethic – both of which they are very proud to share in their produce.

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The farm of Tremonvilliers (Oise) is equipped with a TOMRA 3A to sort its potato and red beet crops. The Tremonvillers farm installed a TOMRA 3A sorter in the Fall of 2020 in a specially built shed to sort and prepare its potatoes and red beets as they leave the fields. The TOMRA 3A gives farmers complete control over the production cycle: adapting to harvest peaks, providing unrivaled sorting quality, and eliminating the need for manual sorting. The TOMRA 3A has been operational for a few weeks and should pay for itself in three years.

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Working Principle

The produce is spread uniformly onto the infeed belt and scanned in-flight by a full-width NIR and color vision in the inspection zone. A few milliseconds later, the foreign material is rejected by intelligent finger ejectors, positioned off the end of the conveyor belt, while the good produce is conveyed away by the supplied accept take away conveyor.

working principle diagram

When it comes to boosting productivity, optimizing efficiency, and maximizing value, information is key. The TOMRA 3A is installed with a highly intuitive touchscreen user interface, making adjustments quick and simple if needed. This allows for monitoring at a glance with the bright information-rich display providing data from the sort and empowering you with actionable data and total control.





TOMRA Insight


TOMRA Insight enables you to turn your sorters into connected devices and to transform sorting from an operational process into a strategic management tool.



Key features

High Performance

The strategic combination of multi-spectral pulsed LED illumination technology, high-resolution cameras and TOMRA analysis software ensures the accurate and consistent removal of foreign material and unwanted green potatoes.


  • High capacity
  • High trash removal capability in difficult harvest conditions
  • Removes Foreign objects missed by mechanical systems
  • Easy to fit into grading line
  • Easy to move to various product storage locations
  • Simple to use, quick to adjust
  • Minimised cleanout
  • On screen, quick read Sorting and product data
  • Easy to service

Sorting parameters

In sorting potatoes, TOMRA 3A can efficiently remove:

  • Stones, rocks
  • Soil Clods, hard & soft
  • Typical foreign objects from the field
    • Wood, Corn cobs/stalks, dead veg matter
    • Glass,
    • Plastics,
    • Bone
    • Metal
    • Rubber
  • Unwanted gross Green potatoes