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Contaminant detection in the petrochemical industry

Plastics are an important product in the petrochemical industry – and quality is a key factor for success. Our contaminant detectors and separators ensure metal-free granules and satisfied customers.

Sesotec specialises in systems for industrial contaminant detection and has more than 40 years of experience in the plastics industry.

We provide a complete range of leading technology that includes metal detectors and magnet systems for the reliable detection and removal of contaminants in a wide variety of applications. Our systems can target ferrous metals, stainless steel and non-ferrous metals, such as aluminium, copper or brass − regardless of whether the metals are magnetic or not, coated, painted, loose or embedded in material.

Sesotec's strengths
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over 40 years of experience and reliability

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Personal support in the after-sales area

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Service-Hotline

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Long-term reliability for spare part supply

FAQ

 

Why is contaminant detection and removal important in the petrochemical industry?

When it comes to producing plastics – one of the most important areas in the petrochemical industry – product purity is a key quality factor. It is necessary above all to eliminate metal pieces and particles, which could otherwise cause damage to machinery when the plastic is processed and create quality issues. As a result, manufacturers of plastics should use machine-based contaminant detectors. It is the only way they can ensure their ability to consistently deliver granules of perfect quality.

 

What kinds of contaminants could appear?

Metals such as iron, stainless steel and copper very often contaminate plastics. There is a wide range of reasons for this, including:

  • Slough and wear from conveyor lines (pipes)
  • Slough and wear from machines
  • Broken blades during hot or cold die-face pelletising
  • Accidental contamination through openings in silos, for example due to staff losing objects

Where do plastics manufacturers use our machines?

It varies. Some manufacturers inspect the granules during production, while others do so after the granules have passed through a screening machine. Yet other manufacturers use our machines to perform a quality check during the outgoing goods phase, for example directly before filling the granules into big bags, octabins or other similar containers. Contact us – together, we will find the right solution for the set-up of your processes.

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White Paper

Keeping plastic compounds free of metallic contaminants

The Whitepaper explores the challenges that metal contamination poses to compounding and masterbatch production and considers the key features that metal separators must have to provide an adequate solution.

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Case Studies

Machinery protection at Starlinger
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Case Studies

For decades Brückner has been relying on Sesotec metal separators
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Case Studies

Metal detector protects Wanner granulators from damage
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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.

opc ua sitraplas1

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

Machine protection during PVC granulation

To avoid any metal in the powder, CIPSA wanted to inspect the PVC compounds before they enter the pelletizer. This was to protect the extruder screw from damage and avoid expensive production stops.

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Industry Brochures

Optimum Productivity in the Plastics Industry
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Product Brochures

RAPID VARIO-FS

Metall-Separator für Freifallanwendungen mit drehbarer Separationseinheit

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Product Brochures

RAPID PRO-SENSE

Hochleistungs-Metall-Separator für Freifallanwendungen

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Product Brochures

RAPID DUAL

Metal separator for free-fall applications

rapid 4000

Product Brochures

RAPID 4000

Metal separator for free-fall applications

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Product Brochures

GF

Metall-Separator für pneumatische Förderleitungen

els primus

Product Brochures

ELS

Plate type metal detector for installation in conveyor belts and material chutes

C Scan D L S

Product Brochures

C-SCAN DLS

Splitable metal detector for installation on conveyor belts and material chutes

elcon

Product Brochures

ELCON

Flächen-Metalldetektor zum Einbau in Förderbänder und Materialrutschen

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Product Brochures

UNICON+

Metall-Detektionssystem für Förderbandanwendungen

varicon plus intuity

Product Brochures

VARICON+

Conveyor based Metal detection systems

Varicon compact

Product Brochures

VARICON COMPACT

Kompaktes Metall-Detektionssystem mit Förderband zur Untersuchung von Stückgütern

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Product Brochures

MAGBOX PLAST

Rohr-Magnet für Freifallanwendungen

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Product Brochures

EXTRACTOR

Rohr-Magnet für Spritzgießmaschinen, Extruder und Blasformmaschinen

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Product Brochures

FLAKE SCAN

Analyzing system for the plastics industry

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Plastics
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Case Studies
Machine protection during PVC granulation
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Circular Economy
Quality analysis of plastic flakes and regrind within minutes
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White Paper
Keeping plastic compounds free of metallic contaminants
Click here to read the story
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Case Studies
OPC UA for production without machine downtime
Click here to read the story
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Circular Economy
How plastics processors use recyclates profitably
Click here to read the story
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Case Studies
Sitraplas: Risk-free recyclate processing
Click here to read the story