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Food Sorting Technology by TOMRA

No matter what type of food you're sorting, removal of foreign material and potentially dangerous matters is critical. That’s why you need impeccable sensor-based sorting technologies. Please take a look at the pictures below highlighting TOMRA's different sensor technologies for food sorting. Beneath the pictures you will find a brief explanation of the technology. If you are curious about what this technology can do for your sorting task, please contact us.

Sensors are like good eyes. Detection is at the core of sorting. TOMRA’s high-tech sensors are like eagle eyes; they see more and are thus able to detect and supply more information.


As the global pioneer in sensor-based sorting, TOMRA’s sorting technology continues to dynamically drive the development of increasingly better and newer sensors to further enhance our customer’s process.


TOMRA’s sensor technology provides the highest efficiency, precision and speed. Not even the smallest particle sizes fall through the detection grid, even though it works much faster than traditional sorting technologies.

TOMRA Sorting’s sensor technologies ensure high speed processing of information such as material, shape, size, geometry, color, defect and damage characteristics, and location of objects.

TOMRA’s sorting principle: a sorting solution tailored to your needs

To provide the right and precise sorting solution, we start working from the broad application, customize the mechanical and technological needs for your particular product, and then fine-tune the sorting machine with the needed core sorting components, including sensors, electronics, software, and ejection modules.

It’s this balance of broad technological application and customized expertise that makes TOMRA the leader in sensor-based sorting.

Core sensor technologies by TOMRA

1. Advanced Foreign Material Detector™ (AFMD)

Specifically designed for the detection of defects and foreign materials that are difficult to identify because of similar structure or color characteristics. The AFMD module sorts on product specific features.Advanced Foreign Material Detectior™ by TOMRA

2. Biometric Signature Identification (BSI)

Designed to identify the characteristics of good products and defects, creating new sorting opportunities for nuts, dried fruit, and other food applications. Allows examining food products using light beyond the visible spectrum, into the near-infrared region. With TOMRA’s BSI technology it is possible to identify certain chemical and molecular differences and changes on the surface and within the objects being inspected. This technology has been awarded with several awards including the ‘Innovation Award’ at the 2015 INC congress.


Biometric Signature Identification technology by TOMRA


3. Camera

Recognizes materials based on color, biological characteristics and shape (length, width, diameter, area, and other). Their capabilities go beyond the visible spectrum and include infrared, ultraviolet and other spectra.
TOMRA has developed exclusive high resolution cameras with an adapted spectrum, ideal for optical food sorting. The cameras also include our industrial high quality lenses, with an advanced focusing system.

Camera technology by TOMRA

4. Detox™

Recognizes aflatoxin in nuts such as peanuts, almonds, hazelnuts and dried fruit such as figs. The Detox™ laser sorter utilizes a special optical design that allows aflatoxin contamination to be detected and removed. This laser technique captures the extremely low intensity of light reflected by the fungus.

Detox™ technology by TOMRA

5. Fluo™

Fluo™ technology is used to sort out products which do not contain chlorophyll/solanine or differ in chlorophyll/solanine level from the good products that contain chlorophyll/solanine such as potatoes, peasgreen beansspinach, and other leafy products. The objects that do not contain chlorophyll (the defects) can be stones, plastics, glass, wood, metal, rotten spots et cetera.   

Fluo™ technology by TOMRA

6. Interactance spectroscopy

Utilizes Near-InfraRed (NIR) light and penetrates far into the meat before it is measured. It has become the preferred method for accurate laboratory measurement of fat in meat

Interactance Spectroscopy by TOMRA

7. Laser

TOMRA’s laser machines sort based on color, structure, and biological characteristics. Laser scanning detects contaminants even when the products and the defects have the same color.


Laser technology by TOMRA

8. Pulsed LED

Recognizes the subtlest color differences thanks to the combination of a number of different pulses inspecting objects in the RGB, IR and NIR spectrum. Benefits are numerous: calibration-free, stable, long life-time, high resolution, less heating …

Pulsed LED technology by TOMRA

9. Shortwave Infrared (SWIR)

SWIR enables sorting based on water content, by creating a contrast between water-based products and other materials. This technology is very effective for sorting fruits and vegetables.


Shortwave Infrared (SWIR) technology by TOMRA


10. Flex & Smart sort

The Smart Sort module helps the operator setting parameters by analyzing the incoming product. It automatically provides a program set up in a simple and timely manner. If necessary, the operator can adjust the program, to adapt the changing sorting criteria. By implementing the Smart Sort module, the sorting machine is used to its fullest capabilities.

Smart Sort technology by TOMRA

11. X-ray

Detects on density, irrespective of size, moisture or pollution level.

X-ray technology by TOMRA