Publications

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  • 01 Apr 2017

    Optimize Feeding to Make More Money in Twin-Screw Compounding

    Plastics Technology

    Every business want to increase profits. Companies can deploy many strategies to do so that can fall across various areas of the business, such as reducing inventory, negotiating lower prices from suppliers, or increasing marketing efforts, to name a few. When it comes to operations, the capital equipment is often already in place and is therefore a sunk cost. Increasing profitatbility in this case is usually depends on maximizing productivity of these assets. For twin-screw extrusion processes, this is most easily achieved by increasing throughput rate, thereby spreading operation costs over a greater amount of product produced in the same unit of time.

    • Plastics
    • Chemicals
    • Food & Pet Food
    • Pharmaceutical
  • 01 Dec 2016

    Three ways to improve continuous loss-in-weigh feeding accuracy

    Powder Bulk Engineering

    The weigh accuracy of individual recipe ingredients for a continuos blending, granulation, or extrusion process has a direct effect on product quality and bottom-line savings. This article explains how to optimize continuous loss-in-weight feeder accuracy by separating plant vibration noise from true weight loss, controlling motor speeds during feeder refill, and compensating for process pressure fluctuations.

    • Plastics
    • Chemicals
    • Food & Pet Food
    • Pharmaceutical
    • Nonwovens
  • 23 Sep 2016

    Better Pelletization under Water

    Kunststoffe International

    Die Plate Wear Protection Doubles Service Life - A new development in wear prevention on underwater pelletizer die plates is opening up the way to significant reductions in production costs, in particular for the production of polyolefins. This new wear protection is now available for the first time for the die plate of an increased capacity underwater pelletizer for throughputs of up to 70 t/h.

    • Plastics
  • 11 Jan 2016

    Feeding in a Closed System

    Kunststoffe International, 1-2/2016

    In a gravimetric feeding system that is closed off and independent of environmental atmosphere, pressure variations inside the material feed hopper may lead to weighing errors. This has a negative impact on product quality as well as production costs. The newly developed electronic pressure compensation (EPC) system offers a reliable and cost-effective solution to solve this problem.

    • Plastics
    • Food & Pet Food
    • Pharmaceutical
    • Chemicals
    • Nonwovens
  • 08 Jun 2015

    Compounding of Polycarbonate: Advantages of the Co-Rotating Fully Intermeshing Twin Screw Compounding Extruders Technology

    Plastics Technology Magazine, 6/2015

    The co-rotating, fully intermeshing twin-screw extruder is the primary production unit for compounding of polymer based materials. Coperion has delivered its first co-rotating, fully intermeshing twin-screw compounders type ZSK for compounding of Polycarbonate more than 30 years ago and has meanwhile the largest population of extruders for manufacturing polycarbonate as well as for compounding polycarbonate, e.g. alloys with ABS or filled with glass fibers, talc or pigments.

    • Plastics
  • 08 Jun 2015

    Black and Finely Dispersed - Compounding Carbon Black Masterbatches for Polyester Fibers

    Kunststoffe International, 6-7/2015

    A carbon black masterbatch used for coloring polyester fibers has to fulfill high standards, especially if the intended results are filmy spinning fibers for very soft and comfy textiles. Taking a Coperion twin-screw extruder as exemplary, it is shown how screw configuration and processing parameters affect the dispersability of carbon black and material degradation in the polyester matrix.

    • Plastics
    • Chemicals
  • 07 May 2015

    Accurately and safely dispensing pharmaceutical and high-value powders with an automated loss-in-weight feeder

    Tablets & Capsules

    This article explains how an automated loss-in-weight feeder can accurately and safely dispense pharmaceutical and other high-value powders in continuous feeding and batching applications, eliminating the dangers and inefficiencies of conventional manual loading.

    • Pharmaceutical
  • 06 Apr 2015

    Food Processing Equipment Trends

    Western Food Processor

    Today’s food manufacturers are looking for ways to boost production runs, simplify cleanup and sanitation, control ingredient costs, reduce changeover times between runs and increase the ability to produce a variety of product types and sizes, all with an emphasis on cutting cost but improving overall food safety. Automation of the complete process is a key trend in food manufacture from raw ingredient receipt and transfer, including various pneumatic transfer options, batch weighing techniques, and continuous feeding methods, all the way to the extrusion, and packaging steps downstream.

    • Food & Pet Food
  • 05 Jan 2015

    Manufacture of aquafeed - Future challenges and solutions

    International Aquafeed Directory 2014/2015

    Nowadays, commercial aquafeed is predominantly manufactured using extrusion. This continuous process allows huge quantities to be produced. Single screw extruders reach their capacity limits at a throughput rate of around 15 t/h, whereas even higher throughput rates can be achieved with twin screw extruders. Coperion GmbH, based in Stuttgart, Germany, is a pioneer in the development of co-rotating and closely intermeshing twin screw extruders and has already designed numerous large scale plants with screw diameters up to 420 mm and throughput rates of up to 100 t/h in different areas of application.

    • Food & Pet Food
  • 10 Oct 2014

    Reactive extrusion: Opportunity for improved performance products and manufacturing productivity

    Rubber World

    The co-rotating twin-screw extruder is cost-effective to operate and has process flexibility. As such, it has become most widely used piece of compounding equipment in the polymer industry. These characteristics have also enabled the twin-screw extruder to be successful in many other markets. These include, but are not limited to, such diverse processes as food, pharmaceuticals, bio-materials, energetics and chemicals.

    • Plastics
    • Chemicals