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WP Machine High Precision 1-flighted Extruder Screw Element
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WP Machine High Precision 1-flighted Extruder Screw Element

Application:twin screw extruder
Min Order:1 piece
Place of Origin:Jiangsu,China
Customization:Customized logo
Package:wooden case
Availability:
Quantity:
  • zhitian

twin screw extruder parts


WP Machine High Precision 1-flighted Extruder Screw Element


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PROCESSING RANGE ¢15.6-¢350MM

Co-rotating twin screw elements for

- APV -KOBE -OMC
- Buhler -KraussMaffei -Theysohn
- Buss -Berstorff- -Toshiba
- Clextral -Labtech -USEON
- Coperon -Lantai - others
- JSW -Leistritz
- Keya -Maris

Types of the Screw Segments

* Convey Screw Segment
* Mixing Screw Segment
* Kneading Block & Disk
* Transition Screw Element
* Deep groove transfer element
* Screw element for side feeder
* 1-flighted,2-flighted,3-flighted screw elements


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BASIC KNOWLEDGE OF TWIN SCREW THREAD ELEMENT COMBINATION

The combination of twin screw thread elements in a co-rotating parallel twin-screw extruder can vary based on the desired functionality and material processing requirements. Here are some basic knowledge points about twin screw thread element combinations:

  • CONVEYING ELEMENTS: Conveying elements are responsible for material transport and can have different groove shapes and configurations. They can be forward conveying or reverse conveying, with single-end, double-end, or triple-end thread configurations.

  • SINGLE-START THREADED ELEMENTS: Single-start screw elements are efficient in solid conveying and commonly used in the feeding section. They are suitable for conveying materials with poor fluidity and offer higher output capacity, torque, and mixing characteristics compared to multi-start threads.

  • DOUBLE-START THREAD VS. TRIPLE-START THREAD: Double-start threads have a larger lead and deeper grooves, resulting in lower shear rates. They are suitable for processing powder materials, especially those sensitive to shear. Double-start threads allow for higher screw speeds, increasing production capacity. Triple-start screw elements generate higher shear rates and shear forces, facilitating better thermal conductivity and plasticization. However, they may not be suitable for shear-sensitive materials.

  • LEAD VARIATION AND FEATURES: The lead variation of a threaded element affects its characteristics. A larger lead can increase production rates in a production-oriented scenario. For heat-sensitive polymers, a larger lead reduces material residence time, minimizing thermal degradation.

These are general principles and considerations for twin screw thread element combinations. The specific choice of elements will depend on the extrusion process requirements, material properties, and desired outcomes.

twin screw extruder element

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