Food Sorting and Peeling Solutions
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field potato sorting machine (FPS) by tomra

The Field Potato Sorter, FPS, is a sensor based food sorting machine for unwashed potatoes, removing soil clods, stones and foreign material.

TOMRA's FPS is a robust, high capacity potato sorter for use in the separation of most foreign material from unwashed potatoes and other root crops.

FPS has proven itself invaluable in heavy ground conditions where its unique vision system accurately separates dirt clods, rocks, wood, bone, plastic, glass, metal, rubber and more.

With labor hard to find, typical labor savings using FPS can be in the area of 80% with satisfied customers reporting high unloading speeds even in the most challenging conditions.


Heero Gramsma, managing director at Nedato, explains: “We are continuously looking into improving the quality of our potatoes and recently felt the time was right to invest in innovative technologies to update our existing grading lines. TOMRA Sorting Food is a very well-known brand to French fries producers. We had heard that the company was able to successfully sort out clods, with barely any good product loss, which is something we know that the competition is unable to do – it was this capability that caught our attention." Read their testimonial and discover why Nedato decided to partner with TOMRA Sorting Food.


  • High capacity and low maintenance sorting machine
  • Flexible food sorting machine with gentle handling assured
  • Simple controls and feedback
  • Consistent long life accuracy


Fresh/ Pack Applications

  • Unwashed Potatoes: works with white, brown, yellow, red, and purple varietals as well as seed, processing and specialty potatoes.

  • Key features

    Sensor Technology

    The FPS uses unique multi-spectral NIR (Near Infra-Red) sensors to scan each individual item ‘in flight’. This allows for an unobstructed view of the product with a high capacity sort. The sensors analyse for soil clods, stones and foreign material.
    Gentle product handling is assured by design; the first accepted grade gently passes through the sorting machine while the second grade with soil clods, stones, and foreign materials, are sorted out by intelligent finger ejectors with precision and accuracy.

    Product Benefits

    • Accommodates various soil types and coverages
    • Significant labour reduction
    • Reduced storage costs
    • Increased yield
    • Improved quality
    • Increased throughput
    • Superior foreign material removal

    Advanced Sorting Criteria

    The FPS can sort multiple food applications by the following sorting criteria:

    • Soil clods
    • Stones
    • Foreign material

    Technical specification

     FPS 1200FPS 1800FPS 2400
    Capacity15,000 - 35,000 kg/hr22,500 - 50,000 kg/hr30,000 - 70,000 kg/hr
    (L x W x H, mm)
    3,514 x 1,980 x 1,9803,540 x 2,515 x 1,9763,457 x 3,337 x 1,991
    Infeed belt width1200 mm1800 mm2400 mm
    Air pressure input75 l/min120 l/min150 l/min
    Electrical consumption4 KVA5 KVA7,4 KVA