World Grain - February 2006 - 65

TECHNICAL PROFILE

New developments in
twin screw extrusion
by Doug Baldwin

Technological advancements allow increased
process control and throughput

T

win screw extrusion cookers have
undergone a number of advancements since their introduction to
the feed and food processing industries
more than 30 years ago. In the earliest days of extrusion, processors relied
heavily on extruder manufacturers to
furnish them with not only the extruder
itself, but also the associated processing
knowledge required for their desired final products.
Many processors today, however, have
a greater understanding of the processing parameters required for their specific range of products and often look to
the extruder manufacturers primarily to
provide the tools necessary to meet specific process requirements. This has led
extruder manufacturers to design twin
screw extruders (see photo, page 66)
and ancillary components capable of
covering an extreme range of processing
applications. With their increased process flexibility and rate potential, these
extruders are especially suited for:
* Applications with extreme product
viscosities;
* Processes requiring high Specific
Mechanical Energy (SME) inputs;
* Continuous physical and chemical
reactions;
66

New high torque/high capacity twin screw extrusion cooker. Photos courtesy of Wenger Manufacturing.

* Dispersive mixing applications.
One example of this new breed of
parallel-shaft, twin screw extruders
is the Magnum ST series, developed
by Wenger Manufacturing, Inc. The
Magnum ST Series features maximum
speeds up to 1,200 rpm and power
levels up to 165-kilowatt-hours-pertonne SME at volumetric capacity.
These high-capacity extruders allow
processors to utilize a smaller extruder model without sacrificing capacity.

Alternatively, the higher SME capabilities can be utilized to meet unique
product requirements. Among the benefits of higher SME inputs to product
quality are:
* Potential for lower bulk density;
* Higher absorbancy levels of liquid
coating;
* Smaller cell structure;
* Potential enhancement of textural
properties;
* Higher cooking levels.
February 2006 / World Grain / www.World-Grain.com



http://www.World-Grain.com

World Grain - February 2006

Table of Contents for the Digital Edition of World Grain - February 2006

Contents
World Grain - February 2006 - 1
World Grain - February 2006 - 2
World Grain - February 2006 - 3
World Grain - February 2006 - Contents
World Grain - February 2006 - 5
World Grain - February 2006 - 6
World Grain - February 2006 - 7
World Grain - February 2006 - 8
World Grain - February 2006 - 9
World Grain - February 2006 - 10
World Grain - February 2006 - 11
World Grain - February 2006 - 12
World Grain - February 2006 - 13
World Grain - February 2006 - 14
World Grain - February 2006 - 15
World Grain - February 2006 - 16
World Grain - February 2006 - 17
World Grain - February 2006 - 18
World Grain - February 2006 - 19
World Grain - February 2006 - 20
World Grain - February 2006 - 21
World Grain - February 2006 - 22
World Grain - February 2006 - 23
World Grain - February 2006 - 24
World Grain - February 2006 - 25
World Grain - February 2006 - 26
World Grain - February 2006 - 27
World Grain - February 2006 - 28
World Grain - February 2006 - 29
World Grain - February 2006 - 30
World Grain - February 2006 - 31
World Grain - February 2006 - 32
World Grain - February 2006 - 33
World Grain - February 2006 - 34
World Grain - February 2006 - 35
World Grain - February 2006 - 36
World Grain - February 2006 - 37
World Grain - February 2006 - 38
World Grain - February 2006 - 39
World Grain - February 2006 - 40
World Grain - February 2006 - 41
World Grain - February 2006 - 42
World Grain - February 2006 - 43
World Grain - February 2006 - 44
World Grain - February 2006 - 45
World Grain - February 2006 - 46
World Grain - February 2006 - 47
World Grain - February 2006 - 48
World Grain - February 2006 - 49
World Grain - February 2006 - 50
World Grain - February 2006 - 51
World Grain - February 2006 - 52
World Grain - February 2006 - 53
World Grain - February 2006 - 54
World Grain - February 2006 - 55
World Grain - February 2006 - 56
World Grain - February 2006 - 57
World Grain - February 2006 - 58
World Grain - February 2006 - 59
World Grain - February 2006 - 60
World Grain - February 2006 - 61
World Grain - February 2006 - 62
World Grain - February 2006 - 63
World Grain - February 2006 - 64
World Grain - February 2006 - 65
World Grain - February 2006 - 66
World Grain - February 2006 - 67
World Grain - February 2006 - 68
World Grain - February 2006 - 69
World Grain - February 2006 - 70
World Grain - February 2006 - 71
World Grain - February 2006 - 72
World Grain - February 2006 - 73
World Grain - February 2006 - 74
World Grain - February 2006 - 75
https://digital.world-grain.com/sosland/wg/world-grain-april-2024
https://digital.world-grain.com/sosland/wg/world-grain-march-2024
https://digital.world-grain.com/sosland/wg/world-grain-february-2024
https://digital.world-grain.com/sosland/wg/world-grain-january-2024
https://digital.world-grain.com/sosland/wg/world-grain-december-2023
https://digital.world-grain.com/sosland/wg/world-grain-november-2023
https://digital.world-grain.com/sosland/wg/world-grain-october-2023
https://digital.world-grain.com/sosland/wg/world-grain-september-2023
https://digital.world-grain.com/sosland/wg/world-grain-august-2023
https://digital.world-grain.com/sosland/wg/world-grain-july-2023
https://digital.world-grain.com/sosland/wg/world-grain-june-2023
https://digital.world-grain.com/sosland/wg/world-grain-may-2023
https://digital.world-grain.com/sosland/wg/world-grain-april-2023
https://digital.world-grain.com/sosland/wg/world-grain-march-2023
https://digital.world-grain.com/sosland/wg/world-grain-february-2023
https://digital.world-grain.com/sosland/wg/world-grain-january-2023
https://digital.world-grain.com/sosland/wg/world-grain-december-2022
https://digital.world-grain.com/sosland/wg/world-grain-november-2022
https://digital.world-grain.com/sosland/wg/world-grain-october-2022
https://digital.world-grain.com/sosland/wg/world-grain-september-2022
https://digital.world-grain.com/sosland/wg/world-grain-august-2022
https://digital.world-grain.com/sosland/wg/world-grain-july-2022
https://digital.world-grain.com/sosland/wg/world-grain-june-2022
https://digital.world-grain.com/sosland/wg/world-grain-may-2022
https://digital.world-grain.com/sosland/wg/world-grain-april-2022
https://digital.world-grain.com/sosland/wg/world-grain-march-2022
https://digital.world-grain.com/sosland/wg/world-grain-february-2022
https://digital.world-grain.com/sosland/wg/world-grain-january-2022
https://digital.world-grain.com/sosland/wg/world-grain-december-2021
https://digital.world-grain.com/sosland/wg/-world-grain-november-2021
https://digital.world-grain.com/sosland/wg/world-grain-october-2021
https://digital.world-grain.com/sosland/wg/world-grain-september-2021
https://digital.world-grain.com/sosland/wg/world-grain-august-2021
https://digital.world-grain.com/sosland/wg/world-grain-july-2021
https://digital.world-grain.com/sosland/wg/world-grain-june-2021
https://digital.world-grain.com/sosland/wg/world-grain-may-2021
https://digital.world-grain.com/sosland/wg/world-grain-april-2021
https://digital.world-grain.com/sosland/wg/world-grain-march-2021
https://digital.world-grain.com/sosland/wg/world-grain-february-2021
https://digital.world-grain.com/sosland/wg/2021_01_01
https://digital.world-grain.com/sosland/wg/2020_12_01
https://digital.world-grain.com/sosland/wg/2020_11_01
https://digital.world-grain.com/sosland/wg/2020_10_01
https://digital.world-grain.com/sosland/wg/2020_09_01
https://digital.world-grain.com/sosland/wg/2020_08_01
https://digital.world-grain.com/sosland/wg/2020_07_01
https://digital.world-grain.com/sosland/wg/2020_06_01
https://digital.world-grain.com/sosland/wg/2020_05_01
https://digital.world-grain.com/sosland/wg/2020_04_01
https://digital.world-grain.com/sosland/wg/2020_03_01
https://digital.world-grain.com/sosland/wg/2020_02_01
https://digital.world-grain.com/sosland/wg/2020_01_01
https://digital.world-grain.com/sosland/wg/2019_12_01
https://digital.world-grain.com/sosland/wg/2019_11_01
https://digital.world-grain.com/sosland/wg/2019_10_01
https://digital.world-grain.com/sosland/wg/2019_09_01
https://digital.world-grain.com/sosland/wg/2019_08_01
https://digital.world-grain.com/sosland/wg/2019_07_01
https://digital.world-grain.com/sosland/wg/2019_06_01
https://digital.world-grain.com/sosland/wg/2019_05_01
https://digital.world-grain.com/sosland/wg/2019_04_01
https://digital.world-grain.com/sosland/wg/2019_03_01
https://digital.world-grain.com/sosland/wg/2019_02_01
https://digital.world-grain.com/sosland/wg/2019_01_01
http://digital.world-grain.com/sosland/wg/2018_12_01
http://digital.world-grain.com/sosland/wg/2018_11_01
http://digital.world-grain.com/sosland/wg/2018_10_01
http://digital.world-grain.com/sosland/wg/2018_09_01
http://digital.world-grain.com/sosland/wg/2018_08_01
http://digital.world-grain.com/sosland/wg/2018_07_01
http://digital.world-grain.com/sosland/wg/2018_06_01
http://digital.world-grain.com/sosland/wg/2018_05_01
http://digital.world-grain.com/sosland/wg/2018_04_01
http://digital.world-grain.com/sosland/wg/2018_03_01
https://www.nxtbook.com/sosland/wg/2018_02_01
https://www.nxtbook.com/sosland/wg/2018_01_01
https://www.nxtbook.com/sosland/wg/2017_12_01
https://www.nxtbook.com/sosland/wg/2017_11_01
https://www.nxtbook.com/sosland/wg/2017_10_01
https://www.nxtbook.com/sosland/wg/2017_09_01
https://www.nxtbook.com/sosland/wg/2017_08_01
https://www.nxtbook.com/sosland/wg/2017_07_01
https://www.nxtbook.com/sosland/wg/2017_06_01
https://www.nxtbook.com/sosland/wg/2017_05_01
https://www.nxtbook.com/sosland/wg/2017_04_01
https://www.nxtbook.com/sosland/wg/2017_03_01
https://www.nxtbook.com/sosland/wg/2017_02_01
https://www.nxtbook.com/sosland/wg/2017_01_01
https://www.nxtbook.com/sosland/wg/2016_12_01
https://www.nxtbook.com/sosland/wg/2016_11_01
https://www.nxtbook.com/sosland/wg/2016_10_01
https://www.nxtbook.com/sosland/wg/2016_09_01
https://www.nxtbook.com/sosland/wg/2016_08_01
https://www.nxtbook.com/sosland/wg/2016_07_01
https://www.nxtbook.com/sosland/wg/2016_06_01
https://www.nxtbook.com/sosland/wg/2016_05_01
https://www.nxtbook.com/sosland/wg/2016_04_01
https://www.nxtbook.com/sosland/wg/2016_03_01
https://www.nxtbook.com/sosland/wg/2016_02_01
https://www.nxtbook.com/sosland/wg/2016_01_01
https://www.nxtbook.com/sosland/wg/2015_12_01
https://www.nxtbook.com/sosland/wg/2015_11_01
https://www.nxtbook.com/sosland/wg/2015_10_01
http://digital.world-grain.com/sosland/wg/2015_09_01
http://digital.world-grain.com/sosland/wg/2015_08_01
http://digital.world-grain.com/sosland/wg/2015_07_01
http://digital.world-grain.com/sosland/wg/2015_06_01
http://digital.world-grain.com/sosland/wg/2015_05_01
https://www.nxtbook.com/sosland/wg/2015_04_01
https://www.nxtbook.com/sosland/wg/2015_03_01
https://www.nxtbook.com/sosland/wg/2015_02_01
http://digital.world-grain.com/sosland/wg/2015_01_01
http://digital.world-grain.com/sosland/wg/2014_12_15
https://www.nxtbook.com/sosland/wg/2014_12_01
https://www.nxtbook.com/sosland/wg/2014_11_01
https://www.nxtbook.com/sosland/wg/2014_10_01
https://www.nxtbook.com/sosland/wg/2014_09_01
https://www.nxtbook.com/sosland/wg/2014_08_01
https://www.nxtbook.com/sosland/wg/2014_07_01
https://www.nxtbook.com/sosland/wg/2014_06_01
https://www.nxtbook.com/sosland/wg/2014_05_01
https://www.nxtbook.com/sosland/wg/2014_04_01
https://www.nxtbook.com/sosland/wg/2014_03_01
https://www.nxtbook.com/sosland/wg/2014_02_01
https://www.nxtbook.com/sosland/wg/2014_01_01
https://www.nxtbook.com/sosland/wg/2013_12_01
https://www.nxtbook.com/sosland/wg/2013_11_01
https://www.nxtbook.com/sosland/wg/2013_10_01
https://www.nxtbook.com/sosland/wg/2013_09_01
https://www.nxtbook.com/sosland/wg/2013_08_01
https://www.nxtbook.com/sosland/wg/2013_07_01
https://www.nxtbook.com/sosland/wg/2013_06_01
https://www.nxtbook.com/sosland/wg/2013_05_01
https://www.nxtbook.com/sosland/wg/2013_04_01
https://www.nxtbook.com/sosland/wg/2013_03_01
https://www.nxtbook.com/sosland/wg/2013_02_01
https://www.nxtbook.com/sosland/wg/2013_01_01
https://www.nxtbook.com/sosland/wg/2012_12_01
https://www.nxtbook.com/sosland/wg/2012_11_01
https://www.nxtbook.com/sosland/wg/2012_10_01
https://www.nxtbook.com/sosland/wg/2012_09_01
https://www.nxtbook.com/sosland/wg/2012_08_01
https://www.nxtbook.com/sosland/wg/2012_07_01
https://www.nxtbook.com/sosland/wg/2012_06_01
https://www.nxtbook.com/sosland/wg/2012_05_01
https://www.nxtbook.com/sosland/wg/2012_04_01
https://www.nxtbook.com/sosland/wg/2012_03_01
https://www.nxtbook.com/sosland/wg/2012_02_01
https://www.nxtbook.com/sosland/wg/2012_01_01
https://www.nxtbook.com/sosland/wg/2011_12_01
https://www.nxtbook.com/sosland/wg/2011_11_01
https://www.nxtbook.com/sosland/wg/2011_10_01
https://www.nxtbook.com/sosland/wg/20111_09_01
https://www.nxtbook.com/sosland/wg/2011_08_01
https://www.nxtbook.com/sosland/wg/2011_07_01
https://www.nxtbook.com/sosland/wg/2011_06_01
https://www.nxtbook.com/sosland/wg/2011_05_01
https://www.nxtbook.com/sosland/wg/2011_04_01
https://www.nxtbook.com/sosland/wg/2011_03_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_01_01
http://digital.world-grain.com/sosland/wg/2010_12_01
http://digital.world-grain.com/sosland/wg/2010_11_01
http://digital.world-grain.com/sosland/wg/2010_10_01
http://digital.world-grain.com/sosland/wg/2010_09_01
http://digital.world-grain.com/sosland/wg/2010_08_01
http://digital.world-grain.com/sosland/wg/2010_07_01
http://digital.world-grain.com/sosland/wg/2010_06_01
http://digital.world-grain.com/sosland/wg/2010_05_01
http://digital.world-grain.com/sosland/wg/2010_04_01
http://digital.world-grain.com/sosland/wg/2010_03_01
http://digital.world-grain.com/sosland/wg/2010_02_01
http://digital.world-grain.com/sosland/wg/2010_01_01
http://digital.world-grain.com/sosland/wg/2009_12_01
http://digital.world-grain.com/sosland/wg/2009_11_01
http://digital.world-grain.com/sosland/wg/2009_10_01
http://digital.world-grain.com/sosland/wg/2009_09_01
http://digital.world-grain.com/sosland/wg/2009_08_01
http://digital.world-grain.com/sosland/wg/2009_07_01
http://digital.world-grain.com/sosland/wg/2009_06_01
http://digital.world-grain.com/sosland/wg/2009_05_01
http://digital.world-grain.com/sosland/wg/2009_04_01
http://digital.world-grain.com/sosland/wg/2009_03_01
http://digital.world-grain.com/sosland/wg/2009_02_01
http://digital.world-grain.com/sosland/wg/2009_01_01
http://digital.world-grain.com/sosland/wg/2008_12_01
http://digital.world-grain.com/sosland/wg/2008_11_01
http://digital.world-grain.com/sosland/wg/2008_10_01
http://digital.world-grain.com/sosland/wg/2008_09_01
http://digital.world-grain.com/sosland/wg/2008_08_01
http://digital.world-grain.com/sosland/wg/2008_07_01
http://digital.world-grain.com/sosland/wg/2008_06_01
http://digital.world-grain.com/sosland/wg/2008_05_01
http://digital.world-grain.com/sosland/wg/2008_04_01
http://digital.world-grain.com/sosland/wg/2008_03_01
http://digital.world-grain.com/sosland/wg/2008_02_01
http://digital.world-grain.com/sosland/wg/2008_01_01
http://digital.world-grain.com/sosland/wg/2007_12_01
http://digital.world-grain.com/sosland/wg/2007_11_01
http://digital.world-grain.com/sosland/wg/2007_10_01
http://digital.world-grain.com/sosland/wg/2007_09_01
http://digital.world-grain.com/sosland/wg/2007_08_01
http://digital.world-grain.com/sosland/wg/2007_07_01
http://digital.world-grain.com/sosland/wg/2007_06_01
http://digital.world-grain.com/sosland/wg/2007_05_01
http://digital.world-grain.com/sosland/wg/2007_04_01
http://digital.world-grain.com/sosland/wg/2007_03_01
http://digital.world-grain.com/sosland/wg/2007_02_01
http://digital.world-grain.com/sosland/wg/2007_01_01
http://digital.world-grain.com/sosland/wg/2006_12_01
http://digital.world-grain.com/sosland/wg/2006_11_01
http://digital.world-grain.com/sosland/wg/2006_10_01
http://digital.world-grain.com/sosland/wg/2006_09_01
http://digital.world-grain.com/sosland/wg/2006_08_01
http://digital.world-grain.com/sosland/wg/2006_07_01
http://digital.world-grain.com/sosland/wg/2006_06_01
http://digital.world-grain.com/sosland/wg/2006_05_01
http://digital.world-grain.com/sosland/wg/2006_04_01
http://digital.world-grain.com/sosland/wg/2006_03_01
http://digital.world-grain.com/sosland/wg/2006_02_01
http://digital.world-grain.com/sosland/wg/2006_01_01
http://digital.world-grain.com/sosland/wg/2005_12_01
http://digital.world-grain.com/sosland/wg/2005_11_01
http://digital.world-grain.com/sosland/wg/2005_10_01
http://digital.world-grain.com/sosland/wg/2005_09_01
http://digital.world-grain.com/sosland/wg/2005_08_01
http://digital.world-grain.com/sosland/wg/2005_07_01
http://digital.world-grain.com/sosland/wg/2005_06_01
http://digital.world-grain.com/sosland/wg/2005_05_01
http://digital.world-grain.com/sosland/wg/2005_04_01
http://digital.world-grain.com/sosland/wg/2005_03_01
http://digital.world-grain.com/sosland/wg/2005_02_01
http://digital.world-grain.com/sosland/wg/2005_01_01
http://digital.world-grain.com/sosland/wg/2004_12_01
http://digital.world-grain.com/sosland/wg/2004_11_01
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_01
http://digital.world-grain.com/sosland/wg/2004_09_01
http://digital.world-grain.com/sosland/wg/2004_08_01
https://www.nxtbookmedia.com