Based on many years of cooperation in plastic compounding – specifically material handling and extrusion – Sabic decided to purchase six Coperion packaging lines and a common palletising island for its plant in Pontirolo/Italy.
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Fully automatic bagging in a small space
cpp chemical plants + processes 2/2017
Three ways to improve continuous loss-in-weight 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.
Better Pelletization under Water
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.
Using wear-resistant rotary and diverter valves to help the cement industry meet requirements for handling abrasive materials.
Solid Dose Digest - More Q&A
Tablets & Capsules
Loss-in-weight (LIW) or gravimetric feeders are devices that directly measure a material's weight to achieve and maintain a target feed rate, which is measured in units of weight per time, such as pounds per hour. This article outlines several key areas where you can optimize the performance of a feeder for your batch or continuous process.
An Eye on Energy
How choosing the right component can save energy in your cement plant.
Valves Toughen Up
Solids and Bulk Handling
Pneumatic conveying systems in the cement industry require wear-resistant rotary and diverter valves.
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.
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.
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.