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Metal detection systems for material columns

Minute metal particles in polymer melt can lead to costly breakdowns during injection molding, extrusion and blow molding. The risk is further increasing with the growing practice in the plastics-processing and recycling industries of processing regranulate and regrind. Our metal separators efficiently and reliably remove contaminants right at the material inlet above the machine.

Our metal detectors are installed directly before injection-molding machines, extruders and blow-molding machines to inspect slow-moving or standing material columns. Positioning our metal detectors there enables you to remove all magnetic and non-magnetic metals − even if they are embedded in the product − while ensuring minimal loss of material. More information on how Sesotec metal detectors and separators work is available here.

That's what distinguishes our products

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usp general easy handling default@2x

Easy to use

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usp general precision default@2x

Highest detection accuracy

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usp general fixing default@2x

Easy cleaning and maintenance

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usp general installation default@2x

Easy installation

The benefits in detail

The detection coil’s two-channel technology provides the highest sensitivity to all metals, regardless of whether they are magnetic or not, even when they are embedded in the product.
At the same time, our systems exhibit the highest resistance to interference from vibrations and electrosmog.
The patented PROTECTOR metal separator guarantees secure, reproducible operations, even when dealing with high levels of dust.
Minute metallic particles are detected even under large mechanical loads in tall structures.
Preset operating parameters mean the control units are extremely easy to operate.
Our metal detection systems feature an auto-learn function to best compensate for the intrinsic conductivity of the inspected material.
The “Quick-Valve” separation unit ensures minimal loss of material.
Our metal detection systems can be used with machines from other manufacturers with the help of adapter plates.
Thanks to UL and CSA certification, they have also been approved for the North American market.

Functional principle (Example PROTECTOR)

Product example PROTECTOR

Looking for more information or advice? Contact us

Design and alternative configurations

Simple and easy assembly

The compact, space-saving design facilitates quick assembly.

Separation systems

Metallic contaminants are removed through the “Quick-Valve” separation unit and a venturi nozzle or the proven quick separating slide for high levels of material throughput.

Special designs

We offer designs for bulk good temperatures of up to 140 ̊C and special mains voltages. The SAFEMAG magnet separator or a hopper magnet for the pre-separation of ferrous metals can also be integrated. Regarding manual separation and functional testing, buttons are available for custom placement in your machine’s own housing.

Self-monitoring

Our systems have visual and acoustic signaling units, a digital event counter and a compressed-air monitoring system.

Products

PROTECTOR
Metal separator for extruders, injection moulding and blow moulding machines
Product Brochure

PROTECTOR MF
Metal separator for extruders, injection moulding and blow moulding machines with coarse-grained material
Product Brochure

PROTECTOR PROFESSIONAL
High-performance metal separator for extruders, injection moulding and blow moulding machines
Product Brochure

Downloads

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White Paper

Contaminant Detection in the Meat Industry

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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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White Paper

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

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White Paper

Important factors when buying a metal detector for plastics processing machines

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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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White Paper

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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White Paper

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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White Paper

How artificial intelligence contributes to sustainable and profitable food processing

Despite the breadth of technology available for foreign object detection, certain types of food products remain difficult to inspect via conventional methods. The reason for this is that some foods have high levels of product effect, which can interfere with metal detection. This white paper examines the phenomenon of product effect, the problems it can cause, and why artificial intelligence offers an innovative and promising solution.

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White Paper

The circular economy: Challenges and opportunities for Recyclers and plastics processors

The plastics industry is under pressure. Between climate change, excessive consumption of finite resources, and vast amounts of plastic waste in the world’s oceans, plastics are coming to be seen in a different light by politicians, businesses, and consumers alike. Read in our e-book about the most important factors of a functioning circular economy, especially which challenges and opportunities exist for recyclers and plastics processors.

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White Paper

Guide for validation of product inspection systems

This guide is intended to help quality managers and production managers in food processing companies to generate a common understanding regarding validation and verification processes in their own organization and to implement appropriate procedures.

Download

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Case Studies

Sesotec Convince Manufacturer of Pharmaceutical Packaging

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Case Studies

Aptar Relies On Sesotec Metal Separators For Machine Protection

Case Studies

Sesotec metal separators optimise injection moulding process at leading medical technology company

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Metal-free granulate for SUZUKI motorcycle parts

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Case Studies

Quality assurance in the plastics industry with Sesotec metal detectors

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Case Studies

Added value with metal detectors in the plastics industry

Case Studies

Maximale Produktivität der Spritzgießmaschine ohne Stillstand

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Case Studies

Detektoren schützen gefrorene Fischprodukte vor Metallfremdkörpern

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Case Studies

OPC UA for production without machine downtime

SITRAPLAS GmbH is a producer of high-performance engineering plastic compounds. Unplanned downtime is a nightmare for every company, but especially for continuous production facilities. When metal separators are networked with plastic processing machines, the flow of information between machines can be monitored.

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Case Studies

How a metal separator saved this plastics manufacturer 75% in maintenance costs and increased output by 20%

While processing virgin glass-filled material together with regrind, the same problem was coming up up over and over again. Metal inclusions were clogging the hot runners of the molds, leading to as many as 10 emergency stops and 2 to 3 costly repairs per month. After careful consideration of the production environment and manufacturing specifications, the metal detection system PROTECTOR 40 was installed along with the magnet system SAFEMAG at the feed hopper of the injection molding machine.

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Case Studies

Safe bread and rolls from the Austrian Waldviertel

The Backwelt Pilz produces pre-baked and pre-cooked deep-frozen baked goods, for the food retail trade, petrol station shops and system gastronomy. In order to ensure that bread and rolls are absolutely free of foreign bodies, the Backwelt Pilz decided, in addition to the existing metal detectors, also to install RAYCON D+ X-ray inspection equipment for packaged products.

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Industry Brochures

Product Purity. Leading Contaminant Detection Technologies for the Food Industry

Industry Brochures

Product Inspection in the Meat Industry

Brochure about the production and processing of meat products.

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Industry Brochures

Optimum Productivity in the Plastics Industry

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Industry Brochures

All about PET

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Product Brochures

PROTECTOR PROFESSIONAL

Hochleistungsausführung Metallseparator für Extruder, Spritzgieß- u. Blasformmaschinen

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Product Brochures

PROTECTOR

Metall-Separator für Extruder, Spritzgieß- und Blasformmaschinen

Product Brochures

PROTECTOR MF

Metall-Separator für Spritzgießmaschinen, Extruder und Blasformmaschinen

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Product Brochures

UNICON+

Metall-Detektionssystem für Förderbandanwendungen

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VARICON+

Conveyor based Metal detection systems

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VARICON COMPACT

Kompaktes Metall-Detektionssystem mit Förderband zur Untersuchung von Stückgütern

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