Keimei Plastifizierung Technik GmbH

Otto-Brenner-Str. 6a , 47877 Willich
Germany

Telephone +49 2154 9532945
Fax +49 2154 9532946
info@keimei.de

Trade fair hall

  • Hall 14 / A15
 Interactive Plan

Hall map

K 2016 hall map (Hall 14): stand A15

Fairground map

K 2016 fairground map: Hall 14

Our range of products

Product categories

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.02  Machinery and plant for processing
  • 03.02.001  Extruders and extrusion lines
  • 03.02.001.01  Extruders
  • 03.02.001.01.02  Twin screw extruders

Twin screw extruders

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.02  Machinery and plant for processing
  • 03.02.001  Extruders and extrusion lines
  • 03.02.001.01  Extruders
  • 03.02.001.01.03  Multiple screw extruders

Our products

Product category: Multiple screw extruders

Triple Screw Extruder

(The application of the German and international patents related to the technology of the product is in process)

Machines with exceptional capabilities – thanks to our unique design:

1. Coaxial transmission: ambient and equipment temperature changes, installation irregularities, vibrations and other external factors will not impair the operation of the coaxial power transmission unit – a benefit of our machine's unique chassis technology.

2. Meshing clearance: a uniform screw engagement clearance reflecting high-precision component machining is the basic guarantor of superior plasticizing performance in your application.

3. Wear resistance: our scientific approach in selecting screw shaft and barrel materials, backed by advanced heat treatment technology, ensures an exceptional wear resistance so that the machine's uniform screw engagement clearance will be preserved.

4. Barrel structure: characterized by scientific material selection, compact size and efficient use of space.

5. Overall size: similar to a twin screw extruder under the same general specifications.

6. Operating efficiency: high yield despite low energy consumption.

7. Plasticizing efficiency: excellent plasticizing efficiency (see figure).

8. Diverse standards and specifications: as in the twin screw extruder line, current models are available with ø12, ø 24, ø 38, ø 53, ø 67 and ø 96 screw shaft diameters – with still larger capacity versions currently under development.

9. Standardization: a standardized screw shaft and core-barrel design is employed across our triple screw extruder, twin screw extruder and blend reactor lines.

10. Identical convenience: when it comes to switching materials for a new production formula, removing and refitting the screw shaft and components is just as easy as with a twin screw extruder.

11. Water cooling of the screw shaft, starting from the internal core shaft, is available as an option. The customer can choose the solution which meets his requirements.

12. Selectable multi-feed and multi-point venting options for unsurpassed performance and unmatched results

13. Extremely low energy consumption, unparalleled by any other plasticizing device on the market, for the same plasticizing output.

14. At the feeding port, materials are fed via a 9 screw thread spiral groove formed by three screw element units – this is equivalent to a 1.5 times increase in material mixing effectiveness compared to the three-start twin screw extruder, which provides a doubly improved mixing action. The shallow groove structure and three-point shear configuration of our system make for an earlier onset of shear and hence, plasticizing action, plus smoother degassing. Thanks to the 'four-state variability' feature of our gearbox, the phase of three of the screw shafts can be changed to adapt the system to different feeding materials and hence, achieve a better result.

15. Inside the barrel, the amount of shear produced per screw shaft rotation is tripled when compared the three-start-screw twin screw extruder – at the same time, the shearing force introduced into the processing material is 1.5 times higher and the mixing effect across the same cross-sectional area is three times that of a three-start-screw twin screw unit.

16. Excellent degassing results: the surface area of the material exposed on the screw surface (gas exchange area) is 1.5 times higher than that of a three-start twin screw extruder. Furthermore the stirring effect is three times higher in the cross section.

17. The 'four-state variability' feature of our gearbox allows the user to change the phase of the output shaft, enabling the machine to unfold its full performance potential.

18. Dispersing performance: more powerful and more uniform shearing action compared to a three-start twin screw extruder provides improved polymer blending and dispersion at the micron level, plus a superior nanoscale effect in both blending and dispersing operation.In master-batch processing, pigments are dispersed more thoroughly and the much increased quantity of nanoscale particles will be more uniformly dispersed for a better coloring effect. In polymer blending, a greatly enhanced molecule intermixing performance is achieved (see figure).

19. Applications: in addition to covering all application areas of a twin screw extruder, these machines have become widespread and are particularly successful in rubber compounding, blending of rubber and plastics, and many other processes (e.g., TPV processing). Their blending action is unmatched by any other twin screw extruder and significantly outperforms that of any internal mixer.

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Product category: Multiple screw extruders

Twin Screw Extruder

Machines with exceptional capabilities – thanks to our special design

1. A three-start screw as core equipment.

2. Coaxial transmission: Ambient and equipment temperature changes, installation irregularities, vibrations and other external factors will not impair the operation of the coaxial power transmission unit – a benefit of our machine's unique chassis technology.

3. Meshing clearance: a uniform screw engagement clearance reflecting high-precision component machining is the basic guarantor of superior plasticizing performance in your application.

4. Wear resistance: our scientific approach in selecting screw shaft and barrel materials, backed by advanced heat treatment technology, ensures an exceptional wear resistance so that the machine's uniform screw engagement clearance will be preserved.

5. Interchangeability: by replacing the barrel and screw shaft, our three-start twin screw extruder can be converted into a two-start twin screw unit.

6. Special structure

7. Water cooling of the screw shaft, starting from the internal core shaft, is available as an option. The customer can choose the solution which meets his requirements.

8. Selectable multi-feed and multi-point venting options.

9. Standardization: a standardized screw shaft and core-barrel design is employed across our triple screw extruder,twin screw extruder and blend reactor lines.
Advantages over a conventional two-start screw design

10. Materials undergo shear three times per screw revolution.

11. The triple groove conveyor provides smoother conveying action; output is guaranteed.

12. A thicker core shaft can deliver and support higher torque levels.

13. An increased screw surface area, making for an enlarged area of contact between the screw and processed material, provides a more uniform and more thorough shearing action.

14. Multiple but smaller shear and dispersion volumes during operation can reduce wear of the screw thread.

15. At the feeding port, materials are being delivered via two screw elements plus 6 additional threaded screw feeding grooves – equivalent to a 1/3 increase in material mixing effectiveness. Moreover, our shallow groove structure provides an earlier onset of shear and hence, plasticizing action, plus smoother degassing.

16. Inside the barrel, as the material moves from a transfer section to the kneading zone and on to the next transfer section, a process of mixing three parts of material into one, followed by renewed separation into three parts, is continuously carried out for superior mixing performance.

17. In the venting zone, the amount of material in contact with the screw surface area increases – as materials become thinner, the degassing effect is greatly improved.

18. Dispersion performance: compared to a two-start screw, a more continuous, more powerful and more homogeneous shearing force is delivered, improving the mixing and dispersion of polymers. In masterbatch processing, pigments are dispersed more thoroughly and the much increased quantity of nanoscale particles is more uniformly dispersed for a better coloring effect. In polymer blending, a greatly enhanced intermixing performance is achieved (see figure).

19. Applications: plastification of thermoplastic polymers, micro blending of rubber and plastics, nanoscale powder dispersion in polymers, production of coating powders, food processing, chemical reactions, etc.

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About us

Company details

Welcome to Keimei! We are at H6 D76 and glad to introduce you our innovative products.

Triple Screw Extruder

          German Utility Model No.: 20 2013 102 627.1
          Applicated German Patent No.: 10 2013 106 337.3

Twin Screw Extruder
Blend Reactor

          German Utility Model No.: 20 2013 104 512.8

Fiber Spinning Lab Equipments

KEIMEI Plastifizierung Technik GmbH of Düsseldorf/Germany, develops and manufactures high-quality polymer extruders and fiber spinning lab equipments. Its world-class interdisciplinary R&D team is in close cooperation with universities in Europe, USA and Asia, focusing on the plasticizing of polymeric materials.

Further information:

Mr. Dieter Jansen
KEIMEI Plastifizierung Technik GmbH
Otto-Brenner-Str. 6a, 47877 Willich, Germany
Phone: +49 (0)2154 9532 943, telefax: +49 (0) 2154 9532 946
http://www.keimei.de, info(at)keimei.de

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