Macchi presented at K the new Pod-Flex series for the production of seven-layer blown films with a net width of 2700 mm. The extrusion line can extrude laminate, barrier and biomaterials, since the new TES72 extrusion die, which is completely PVD-coated, can process both polyolefin and barrier-film formulations on the same line. 

Technical Advances in More Flexible Blow-Molding Lines  

Blasfolienextrusion

Extrusionswerkzeuge

Extrusion

Higher Speed for Material Exchange 

Colines spa, Novara, Italy, has developed a system for the production of high range thickness CPP, CPE and multilayer barrier film, from 15 to 500 micron, called “Thick&Thin”. 

Cast Unit for Cast Film Extrusion 

Thick and Thin 

Cracks often appear on screws and unsettle customers. The manufacturer EJS is often confronted with this effect and has got to the bottom of it. 

EJS Investigates Crack Behaviour 

Kunststoffverarbeitung: Maschinen und Komponenten

Extrusions-Zubehör

The Danger of Cracks on Screws 

The Chinese global film supplier invests in two 7-m sequential film stretching lines for the production of BOPA films. 

Xiamen Changsu orders production line for BOPA film 

Folien

Brückner delivers sequential film stretching lines 

The EMVA announces that based on the high dynamics of the COVID-19 pandemic development the EMVA Business Conference 2020 in Sofia is cancelled.  

One-day Conference in Online Format is Planned for June 

Spritzgießmaschinen

Europa

EMVA Business Conference in Sofia is Shifted to 2021 

A new feed system combines the advantages of gravimetric monitoring and control of throughput with the advantage of volumetric metering into the main flow of material. Practical tests at processors reveal lower material consumption, improved quality and easier set-up. 

Masterbatches

Dosierer

Spritzgießen

Precise Masterbatch Metering: Self-colouring with Gravimetric Metering 

To prevail on the market, plant manufacturers and plant operators in the plastics producing and processing industry must be able to utilise existing potential for cost saving. Even the choice of processes and equipment for conveying, dosing and mixing can form the basis for successful production. 

Mischer

A Survey of the State of the Art: Conveying, Dosing and Mixing 

At the Weert/Netherlands site, Klöckner Pentaplast recently brought a new extrusion line on stream. Its ancillary material compounding line is required to meet severe demands. 

Trockner

Material Compounding for Film Extrusion: Drying, Conveying and Dosing of PET 

The handling of plastics pellet stock is extremely important, particularly in the extrusion business. Firstly the material must be fed with the correct composition (following the formulation). Secondly material tearing, for example in film extrusion, can involve a very long and expensive restarting process. 

Product Quality also Depends on Conveying, Metering and Drying Systems: Plastics Handling in Extrusion 

Despite the wide variety of available bulk materials and their blends, the basic operations of storage, conveying and metering can be governed better than ever. This presupposes knowledge of the particle and bulk properties, selection of the correct equipment, and the use of modern, intelligent metrology and information systems. This has resulted in better product qualities, greater operating reliability and lower production costs. However, even the best plant is of no use if the properties of the bulk material have been incorrectly assessed. 

Storing, Conveying and Metering Bulk Materials: Material in Movement 

A tried-and-tested metering system combining the advantage of gravimetric monitoring and control of additive dosing weight, with the advantage of targeted feeding into the main material flow can now be used for production planning, monitoring and control. 

Quality Assurance: A New Standard of Gravimetric Metering  

A new gravimetric metering system has now been developed that opens the door to a technology which was previously carried out by more cost-intensive methods. The main features of the new system are its rapid metering via metering valves, combined with outstanding accuracy. Alternatively, for particularly fine metering, the process can be run via cellular wheel sluices. 

Gravimetric Precision Metering 

Fully automatic direct application of the gasket compound to the part saves costs as a result of shorter production times and reduced stockholding. A new automation concept for a mixing and metering unit allows the application of gaskets to more than 1.2 million batten-type lighting fixtures per year with only one operator. 

Handling, Handhabungstechnik

Mixing and Metering Equipment for Fully Automatic Lamp Production: Automated Gasket Application 

A new control system for material handling unites extensive functionality and network capability. This contribution describes what the advantages of the modular control concept are and what properties characterise it. 

Machine Peripherals: Modular Controls Increase Efficiency 

At this year’s K trade fair, the major companies of the PU sector are going to present a lot of small, but fine innovations to their customers. In nearly all areas, engineering boosted, thus improving the performance of many products. This has significantly enhanced benefits for the users, and the efficiencies of PU processes. 

Reaction Technology (Trade Fair Report K 2007): PUre Evolution? 

Metering Technology: Precision for Highly Filled Formulations 

Sewer pipes can be produced economically with highly filled PVC formulations. Processing of these formulations requires special machinery designs in order to ensure optimum feeding and plasticising of the material. A machine combination comprising a vertical metering unit and a dynamic mixer assures that every highly filled PVC formulation is metered into the extruder precisely and consistently, so that the screw flights are filled 100%, thus achieving optimum plasticising performance.  

PE_2005_10_Metering-Technology-Precision-for-Highly-Filled-Formulations.pdf

Ausgabenartikel

589488 Metering Technology: Precision for Highly Filled Formulat

issue 05/2025

issue 04/2025

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