We use cookies to provide you an optimal service on our website. > Read more OK Germany English Sitemap Search Industries Products Industries Plastics Driving Impact Purity is value Foreign material detection in the plastics industry A circular economy must not only be sustainable and environmentally friendly, but also profitable for the companies that manufacture, process, and recycle plastics. To this end, the purity of the raw materials and sorting streams plays a decisive role. Using intelligent technologies and services, we help businesses in the plastics sector operate with circularity and efficiency. In this way, profitability, sustainability, and environmental protection go hand in hand. Your industry Plastics processing Plastic compounds Rubber and tyres Chemicals Hygiene products Petrochemical industry The Circular Economy - Closing the plastics loop The plastics industry is under pressure. Between climate change, the depletion of finite resources, and the vast amounts of plastic waste floating in the world’s oceans, the perception of plastic is changing among politicians, businesses, and consumers alike. Establishing a circular economy promises numerous opportunities for manufactures, processors, and recyclers of plastics; but it would also come with a variety of challenges. From processors and manufacturers, to consumers, to recyclers: to establish an enduring circular economy, all actors must see a benefit. The availability, quality, and price of raw materials play a significant role in the profitability of plastics manufacturing and processing. The same also applies to the recycling industry, where fluctuations in the price of recyclate and virgin material pose additional challenges. For businesses that manufacture, process, or recycle plastics, flexible technology is key to achieving optimum profitability. Facilities outfitted with a coordinated, sophisticated system of metal separators and sorting equipment are positioned for higher system availability and processing efficiency. Learn more about our solutions for the plastics recycling industry Material efficiency: Get more out of plastics Like recyclers, manufacturers and processors of plastics must contend with fluctuations in the availability of recycled materials. This is especially true in times of high demand. Furthermore, not all recycled materials are of high enough quality or available in sufficient quantities to be suitable for further processing. The higher the quality of the recycled material, the more efficient its processing. Better process reliability and system availability lead to greater profits The plastics, rubber and chemical industries often use expensive equipment, such as injection-moulding machines, calender rolls, extruders and blow-moulding machines. The continuous operation of these machines is tremendously important to a company’s profitability. However, operations can come to a standstill if even the tiniest pieces of metal become lodged in melt filters, hot runners or nozzle tools, obstruct check valves or cause damage to plasticising screws or cylinders. Metal detectors and magnet separators can prevent equipment failure from occurring. The timely detection and removal of contaminants increases process continuity and productivity by reducing downtime. Higher quality for your customers Product purity is a key quality concern in plastics, rubber, and chemical production. In addition, quality issues may arise if metal contaminants lead to blockages in production equipment, causing too little material to be injected into the moulds of plastic parts. In some industry segments, such as hygiene products, consumer protection is yet another argument for why metallic contaminants must be avoided at all costs. The use of metal detectors can lower the reject rate, prevent complaints and enhance customer satisfaction. What can we do for you? For more than four decades, Sesotec has been a trusted expert in metal detection and metal separation for the plastics, rubber and chemical industries. Our metal detectors act as machinery protection devices, detecting and removing all metals, including ferromagnetic metals such as iron, to stainless steel, aluminum, copper, brass and lead, among others. Furthermore, they do so safely and reliably, regardless of whether the metals are encased, coated, painted, insulated, embedded or loose. To enhance efficiency, magnet separators can be implemented upstream to separate out iron and magnetized particles of stainless steel. Learn more about our solutions for the plastics recycling industry Our portfolio of modular products is compatible with all specifications required in diverse manufacturing and processing applications. We have standardized solutions for all process steps: Silo filling Conveyor, drying and crystallisation systems Sprue grinders and central granulators (in-house recycling) Dosing and feeding Inlet at the processing machines (last-chance checkpoint) Packaging of the finished product (final quality check) Material analysis for incoming goods inspection Recycling and flake sorting Downloads Filter Product Categories Metal detection systems Magnet systems Sorting systems Analysis systems Content type All All White Paper Case Studies Industry Brochures Product Brochures White Paper 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? DOWNLOAD 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. DOWNLOAD 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. DOWNLOAD 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. DOWNLOAD White Paper Using recycled materials in plastics processing In the new Sesotec White Paper "Using recycled materials in plastics processing" you will learn about … why there is increasing pressure on plastics processors to use more recyclate … the differences between post-consumer and post-industrial recyclate … the problems plastics processors may face when using recyclate … how to future-proof your processes to effectively handle increasing volumes of recyclate DOWNLOAD Case Studies Marangoni installs Sesotec Metal Detectors DOWNLOAD Case Studies Machinery protection at Starlinger DOWNLOAD Case Studies Sesotec Convince Manufacturer of Pharmaceutical Packaging DOWNLOAD Case Studies Metal detector allows economic processing of regenerated material DOWNLOAD Case Studies For decades Brückner has been relying on Sesotec metal separators DOWNLOAD Case Studies Aptar Relies On Sesotec Metal Separators For Machine Protection DOWNLOAD Case Studies Sesotec metal separators optimise injection moulding process at leading medical technology company DOWNLOAD Case Studies SABIC chooses Sesotec high performance metal separator DOWNLOAD Case Studies Metal-free granulate for SUZUKI motorcycle parts DOWNLOAD Case Studies Injection moulding company outfits 600 machines with SAFEMAG magnet systems DOWNLOAD Case Studies Quality assurance in the plastics industry with Sesotec metal detectors DOWNLOAD Case Studies Production security through machine protection in the plastics industry DOWNLOAD Case Studies Added value with metal detectors in the plastics industry DOWNLOAD Case Studies Maximale Produktivität der Spritzgießmaschine ohne Stillstand DOWNLOAD Case Studies Double protection by metal separators and OPC-UA DOWNLOAD Case Studies Metal detector protects Wanner granulators from damage DOWNLOAD Case Studies Metal Detector for the Quality Inspection of Rubber Mats DOWNLOAD 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. DOWNLOAD 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. DOWNLOAD 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. DOWNLOAD 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. DOWNLOAD Case Studies Product purity for chemical products through precise quality control The quality requirements of the chemical industry are particularly high. Metal detectors play an essential role in the refinement of solids to ensure a consistently high product quality and safety. At the same time, the customers expect quick setup times to achieve high flexibility and efficiency. DOWNLOAD Industry Brochures Optimum Productivity in the Plastics Industry DOWNLOAD Industry Brochures All about PET DOWNLOAD Product Brochures RAPID VARIO-FS Metall-Separator für Freifallanwendungen mit drehbarer Separationseinheit DOWNLOAD Product Brochures RAPID PRO-SENSE Hochleistungs-Metall-Separator für Freifallanwendungen DOWNLOAD Product Brochures RAPID DUAL Metal separator for free-fall applications DOWNLOAD Product Brochures RAPID 4000 Metal separator for free-fall applications DOWNLOAD Product Brochures PROTECTOR PROFESSIONAL Hochleistungsausführung Metallseparator für Extruder, Spritzgieß- u. Blasformmaschinen DOWNLOAD Product Brochures PROTECTOR Metall-Separator für Extruder, Spritzgieß- und Blasformmaschinen DOWNLOAD Product Brochures PROTECTOR MF Metall-Separator für Spritzgießmaschinen, Extruder und Blasformmaschinen DOWNLOAD Product Brochures GF Metall-Separator für pneumatische Förderleitungen DOWNLOAD Product Brochures ELS Plate type metal detector for installation in conveyor belts and material chutes DOWNLOAD Product Brochures C-SCAN DLS Splitable metal detector for installation on conveyor belts and material chutes DOWNLOAD Product Brochures ELCON Flächen-Metalldetektor zum Einbau in Förderbänder und Materialrutschen DOWNLOAD Product Brochures UNICON+ Metall-Detektionssystem für Förderbandanwendungen DOWNLOAD Product Brochures VARICON+ Conveyor based Metal detection systems DOWNLOAD Product Brochures VARICON COMPACT Kompaktes Metall-Detektionssystem mit Förderband zur Untersuchung von Stückgütern DOWNLOAD Product Brochures MAGBOX PLAST Rohr-Magnet für Freifallanwendungen DOWNLOAD Product Brochures EXTRACTOR Rohr-Magnet für Spritzgießmaschinen, Extruder und Blasformmaschinen DOWNLOAD Product Brochures SAFEMAG Rohr-Magnet für Spritzgießmaschinen, Extruder und Blasformmaschinen DOWNLOAD Product Brochures RAPID PRO-SENSE 6 High-performance metal separator for resin and compound manufacturers DOWNLOAD Product Brochures FLAKE SCAN Analyzing system for the plastics industry DOWNLOAD Product Brochures RE-SORT Mobile metal separation unit for material recovery DOWNLOAD Looking for more information or advice? 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