Page 100 - Plastics News December 2019

Static Mixers for Injection & Extrusion Processes

StaMixCo Ltd., Switzerland, is a company having Mixing Nozzle (SMN) without any modifications and which
specialization in static mixers for laminar flow applications would be useful for processing regrind material.
such as the homogenization Benefits:
of polymer melts in plastics
processing injection • Retains solids and only partially molten granulates
molding and extrusion • Protects hot runner systems and tools from clogging
machinery and/or damaging

STAMIXCO MIXING NOZZLE • Retrofitting possible without modification of the
(SMN) contains 8 very nozzle body
efficient static mixing
elements that homogenize the polymer melt prior to • O.D. filter = O.D. mixing elements
injection results in the following benefits • Length of filter = length of two (2) mixing elements
• Reduced spots, streaks and clouds of color STAMIXCO MELT BLENDER (SMB-R) for Extruders are

• Reduced colorant usage (10% - 40%) used in
• Narrower part tolerance • Sheet extrusion • Profile extrusion
• Reduced reject rates • Blown film • Co_Extrusion
• Foam sheet • Wire & Cable
• Less part distortion
• Fibers & monofilaments • Injection Blow Moulding
• Less weight variation of bottles
• Improved part quality Benefits:
when using regrind
material • Thermal and
composition
• Shorter cycle time gradients
• Improved melt flow are virtually
eliminated
• Increase regrind ratio with consistent product quality
• Reduced spots,
• Rapid nozzle heat-up streaks and clouds
Example: • Reduced colorant

Color distribution in toothbrush shaft of SAN usage (10% - 40%)
• Improved melt flow, uniform filling of multi-cavity
dies

• Homogenous melt and practically only low temperature
and concentration differences

• Improved quality when using regrind material
• Foam cell size and distribution uniformity in foamed
The SMN Mixing nozzle is available in various sizes covering products
applications from small to large shot weights.
• Improved mechanical characteristics
STAMIXCO FILTER (SMF) can be installed with Stamixco
STATIC MIXER MELT BLENDERS FOR EXTRUSION BLOW
MOLDING OF BOTTLES MADE OF POLYOLEFINES
Application:

• Homogenizing the polymer melt in the die just before
blowing-up the tube to form the bottle.

• Producing a polymer melt of uniform temperature
and uniform viscosity. This allows the production of

Plastics News December 2019 100104