Metallsuchsysteme2
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Safely detecting and removing metals

Do you want to avoid the risk of metallic contaminants halting production or ending up in the final product? Our metal detectors reliably detect all metallic contaminants und provide protection – perfectly tailored to your application.

Regardless of whether the contaminant − exposed or embedded in the product − is made of iron, steel, stainless steel or non-ferrous metals, such as aluminium, copper and brass, our metal detection systems identify all metallic contaminants using inductive technology (see below). They send a signal to the process controls and, together with a separation unit, remove the contaminated products – entirely automatically. Our machines for the food industry are compliant with standards such as IFS, BRC and FSMA.

Sesotec metal detectors provide effective protection against damage to machinery, production downtime, customer complaints and recalls. You can rely on our more than 40 years of experience in contaminant detection and product inspection!

The benefits of using our metal detectors

  • Detect magnetic and non-magnetic metal contaminants with extreme precision
  • Prevent damage to machinery and production downtime
  • Ensure product quality in line with the required standards and certifications
  • Protection against customer complaints and recalls
  • Rapid amortisation 


Wide product range with customisation options

Our complete range of leading technology covers a wide range of products, types of conveyance and process steps. Whenever standard solutions do not provide the right fit, we find another way through customisation. Our many years of experience in a variety of user-focused industries enables us to quickly immerse ourselves in your processes and offer solutions that will integrate perfectly into your production line!

In terms of design and development, we focus on making the installation, everyday operation and cleaning of our systems as quick and easy as possible. Our machines and systems also feature a high level of mechanical stability and resistance to interference – quality that is engineered and made in Germany.

Product example: Metal Detector INTUITY


How the systems work

Detection based on induction technology

The detection abilities of our metal detection systems are not limited to iron or magnetic materials, but rather include every type of metal. To make this possible, they use the transmitter/receiver method based on electromagnetic induction. While in operation, the metal detector generates a constant electromagnetic field. If a piece of metal passes through the detector, it disturbs the field. The signal subsequently received registers as the presence of metal.

Digital signal analysis

The software in the control module analyses the recorded signals. It must be able to reliably distinguish metallic contaminants from interference from the environment or the product itself, since a product − depending on its intrinsic conductivity − can alter the signal.

Our control systems therefore use sophisticated algorithms to analyse signals with reference values that either come preset or which are established during ongoing operations. This approach prevents them from triggering false alarms, while enabling them to reliably identify metallic contaminants. If a contaminant is detected, the module (depending on the configuration) sends a signal to the process controls, activates the downstream separation unit, notifies the operating staff and enters the incident into the integrated logbook.

Low-loss separation

Swivel arms, air-blast nozzles, pushers, rejection flaps, swivel hoppers and retraction belts are available to choose from as a means of removing contaminated products safely, automatically and with little loss of material. The specific choice depends on the nature of the product, type of conveyance and other parameters.

Learn more about foreign body detection in the food industry in our "Guidelines on contaminant detection".


Advice and testing opportunities

Do you still have questions? Are you looking for brochures or technical data sheets? Would you like us to advise you with respect to your specific application? Contact us! 

Our technology centre also provides the opportunity to test your products with our systems and machines. You can either send us the product for testing, or you can visit in person.

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fremdkoerperdetektion fleisch wp vorschaubild blog en

White Paper

Contaminant Detection in the Meat Industry

Unser White Paper beschreibt einige der Herausforderungen, die sich in der Fleischindustrie hinsichtlich der Produktreinheit und -sicherheit ergeben und erklärt die verfügbaren Technologien, die für die Detektion von Fremdkörpern zur Verfügung stehen.

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White Paper

Intuitive operation of a metal detector and its influence on the total cost of ownership

Our White Paper informs you about the criteria that need to be considered when you choose machines and systems for the protection against contaminants and for metal detection.

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Metal Detection steps up

Our White Paper describes the development of technologies in contaminant detection in the food industry.

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Important factors when buying a metal detector for plastics processing machines

How easy is it to install the metal detector in the production line – and how easy is it for your staff to operate the device?

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Detection of Plastics with X-Ray Systems in the Food Industry

Lecture by Sesotec X-ray Product Manager Uli Hurzlmeier concerning the "Food Safety" IFFA focus.

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Metal contamination in plastics processing – causes and countermeasures

In our white paper, we provide a detailed outline of the issues, their causes and the necessary countermeasures for eliminating metal contamination in the plastics processing industry.

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E-Book: Driving Impact - Safe food and saving food

In our e-book we show you, amongst others, what challenges the development of the world's population and especially food safety pose for manufacturers and processors and how they can still be mastered.

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Case Studies

Almi: Food metal detectors inspect flavourings and spices

Almi, an Austrian company headquartered near Linz, and one of the leading manufacturers of quality flavourings and additives for sausage, meat, ham and fish products, uses Sesotec “Hygienic Design” metal detectors throughout their entire production process.

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Food Metal Detectors for Kalustyan

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Metal detector allows economic processing of regenerated material

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For decades Brückner has been relying on Sesotec metal separators

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„180 Degrees“ selects Sesotec food metal detector

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Use of metal detectors as a competitive advantage for Huer Foods

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Reflex Nutrition strengthens quality control with Sesotec metal detection systems

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AZO uses Sesotec metal detectors for food

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Added value with metal detectors in the plastics industry

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Double protection by metal separators and OPC-UA

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Metal detector protects Wanner granulators from damage

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Metal detection for the safety and purity of meat products

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Metal Detector for the Quality Inspection of Rubber Mats

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Detectors protect frozen fish products from metal contamination

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Case Studies

Sitraplas: Risk-free recyclate processing

Separately purchased recyclate often contains various different polymers as well as metal contaminants such as aluminum, brass, and stainless steel. Learn in our Case Study how Sitraplas has solved this problem.

Industry Brochures

Product Purity. Optimal contaminant detection in the food industry.

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Complete product range for consistent contaminant inspection in the meat industry

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Optimum Productivity in the Plastics Industry

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