Accurate sizing of whole potatoes does not just need to be rough and mechanical thanks to the Modus, TOMRA’s new size grader!

TOMRA Sorting Food will reveal its Modus at INTERPOM | PRIMEURS in Kortrijk Xpo, Belgium, from 23 – 25 November. You can find TOMRA at booth 110.


Previously the majority of washed potato sizing was done by mechanical means, because up until now, there was no high volume optical food sorter that came close to the traditional mechanical grids, square meshes and roller sizers.

TOMRA modus

“There are limits to these mechanical food sorting processes, including that almost all mechanical sorters in use today only grade by width. To address this issue, TOMRA Sorting Food’s development team has designed the Modus which can sort washed potatoes by width and length, or a combination of both,” says Jim Frost, market unit manager whole products sorting at TOMRA Sorting Food. 

The revolutionary Modus will be unveiled to visitors to INTERPOM next week. The size grader delivers high throughput; up to 45,000 kg/h. TOMRA offers the Modus as a standalone size grader or integrated with the Halo, Sentinel II or Titan for quality and size grading.

The Modus’ operation is simple and effective. After alignment by a simple shaker and conveyor a unique new TOMRA imaging module and electromagnetic diversion system is used to gently divert the potatoes of the selected sizes into three different exits.

The Modus is also supported by the new intuitive and user-friendly TOMRA user interface. “The new user interface makes settings for grading easy. Length and width ranges, or a combination of both, are set in a few simple steps using the touch screen. In addition, the screen allows customers to view live product data which can be saved for use at a later date for traceability or analysis purposes, for example,” says Frost.

Additionally the novel pulsed-LED sensor optics, proven on the Titan and Halo sorting platforms, is an important feature of the Modus, producing stability and accuracy on high volume whole potatoes.

“The sorting results are very impressive. The Modus is ultra-reliable, and very stable. Together with the long life illumination and the gentle high speed lift drop separator, which directs the potatoes into different grades, the Modus makes sure that our customers will benefit from accurate size grading,” says Frost.

Discover more about the Modus:


About TOMRA Sorting Solutions Food

TOMRA Sorting Solutions is the leading provider of sensor based sorting solutions and processing technology for the fresh and processed food industries. Developing state-of-the-art technologies, optimizing customers’ production flow and helping to deliver consistent high quality output have been our strengths for more than 40 years. For more information, visit