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Nimbus BSI sorting machine by TOMRA

The Nimbus BSI is a real breakthrough for processing nuts, grains & seeds, dried fruit, and pet food.

Nimbus BSI



The new generation free-fall sorting solutions combine laser detection efficiency on foreign material, with the camera to sort discolorations and shape of products in free-fall. Our unique BSI (Biometric Signature Identification) technology works by detecting the biometric characteristics of objects. Combined with TOMRA’s patented Fluo™ technology, the Nimbus sees chlorophyll in the lightest shades to create an even better contrast between good products and defects. Other technologies available include SWIR, making a distinction between water-based products and other materials, the Advanced Foreign Material Detector™, and Detox™ for aflatoxin detection.


At the 2015 World Nut and Dried Fruit Congress in Antalya, Turkey, TOMRA Food won the Innovation Award for its groundbreaking Nimbus BSI sorting technology.


The Nimbus BSI can be equipped with two types of scanners. The standard BSI module is ideal for the removal of foreign material, while the BSI+ scanner deploys a broader spectrum and also detects visual irregularities, identifying not only foreign material but also product-specific defects.

TOMRA Food unveiled upgrades to its award-winning Nimbus BSI sorter for the nut, dried fruit, and other food industries at The Almond Conference 2017 in Sacramento, California.


GA Pet Food Partners (UK)


As Europe’s leading manufacturer of private label premium dry petfood, GA Pet Food Partners place quality at the heart of their operation. Beginning as a farming diversification, GA now manufacture 500 different types of extruded petfood to over 1,200 customers globally. As the first petfood manufacturer to trial TOMRA’s optical sorting solutions, GA have witnessed exceptional results across quality which led to their purchase of the Nimbus BSI+ in January which has proven itself as a key differentiator in meeting the superior quality demands its customers demand. Together with TOMRA Food, GA continue to add value through innovation.


Frupinsa (ES)

Frupinsa are a 100-year-old family operated almond packer located in Tarragona, Spain. They pride themselves in delivering a quality safe product to their customers and use the NIMBUS BSI+ to ensure this. Since their investment in TOMRA they have a better work rate, fewer productions stops, less waste and an optimal product quality.  

Morada (CA, USA)


Morada Produce (Morada Nut) are third generation family farmers from Linden, California. They pack walnuts using TOMRA Nimbus BSI technology to ensure only a safe and quality product makes it to the end consumer.


Andersen & Sons (USA)


One of the major problems Andersen & Sons faced in the past was their inability to identify defects using just laser sorters. Having outgrown its latest walnut sorting machine, they needed something that would meet the company’s specific demands. Mike Andersen, vice president of sales at Andersen & Sons explains: “TOMRA is a familiar name in the industry. We have been using TOMRA laser sorters since 2005, but we recently purchased TOMRA’s Nimbus free fall sorting machine with Biometric Signature Identification (BSI) - a larger machine with advanced laser sorting technology.”


Virto Group, Spain

VIRTO GROUP, the largest frozen vegetable company in Spain and one of the most important in Europe, has again put its trust in TOMRA. The company has updated its main plant in Azagra (Navarra) with eleven Nimbus BSI+ sorters. This frozen vegetable mixing, packaging, storage, and distribution center is one of the most technologically advanced in the industry.

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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.




Dried fruit Grains & seeds

TOMRA Food contact us

Key features

Sensor Technology

A feed shaker or hopper uniformly spreads the product over the free-fall chute. The product falls down towards the inspection zone, where it is scanned by lasers, cameras, BSI or a combination thereof. A few milliseconds later the defects are hit with a precise powerful burst of air sending them into the rejection zone while the good product continues its natural free-fall.


  • Easy to use software
  • Self-learning
  • Calibration-free
  • High capacity
  • Optimised sort
  • Hygienic machine design
  • Increased uptime, quality, throughput, yield
  • Higher customer satisfaction

Advanced Sorting Criteria

  • Chlorophyll
  • Color
  • Shape
  • Subtle defects
  • Biometric characteristics of objects
  • Blemishes
  • Damage
  • Advanced Foreign Material Detection
  • Mycotoxins
  • Water-based products
  • BSI / BSI+

Technical specification

 Nimbus 640Nimbus 1200Nimbus 1600
(L x W x H, mm)
2200 mm x 3500 mm x 2450 mm (87" x 138" x 96")2660 mm x 4200 mm x 2450 mm (105" x 165" x 96")3050 mm x 5550 mm x 2450 mm (120" x 219" x 96")
Infeed belt width2200 mm (86,4")2200 mm (86,4")2400 mm (94,2")
Air pressure input6 - 7 bar (87- 102 psi)6 - 7 bar (87-102 psi)6-7 bar (87-102 psi)
Electrical consumption1ph: 4kVA / 3ph: 2.5kVA1ph: 4kVA / 3ph: 2.5kVA1ph: 4kVA / 3ph:2,5kVA