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Injection Molding Technology   Reaction Process Machinery    |   Extrusion Technology
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  • Low-pressure machines F
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  • Hybrid machines
  • Piston machines
  • RTM metering machines
  • Double-belt metering machine


  • LPE - PE 2061S Epitaxial Reactor
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    Piston machines
    Piston machines are suitable for metering PUR components containing abrasive fillers such as glass fibres or wollastonite. The component containing the filler is metered by means of a metering piston.


    Principle

    The component containing the filler is metered by means of a metering piston. This machine is available in four different models.

    Technology

    KraussMaffei offers four different piston machine models:
    • One metering piston delivers a discontinuous stream of the filled component (Hybrid).
    • Two metering pistons for the filled component deliver a continuous stream of the filled component (Tandem Hybrid).
    • One metering piston each is used for the polyol and isocyanate components. This results in a discontinuous stream of the two components (Comet).
    • Two metering pistons in tandem permit a continuous stream of the two components (Tandem Comet).

    Customer benefits

    • Piston machines provide an economical way of processing abrasive PUR components.
    • Production flexibility is increased.
    • Even extremely low feed rates can be metered precisely.
    • Mould filling times are short because highly reactive systems can be processed.
    • With the Comet model, abrasive fillers can be metered into both the polyol and isocyanate component.
    • Feed rates are very high thanks to the combination of pump and piston metering.
     

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