Bud Smith, President and CEO of Brampton Engineering today introduced
the SCD-3 a new and improved Streamlined Coextrusion Die. He said,
"it may not look any different on the outside but users are benefitting
from proprietary improvements we have made to the fundamental design."
"BE invented the technology of the modular or stackable die and we
know how to improve it," says Philip Kwok Vice President of Sales.
"Since we introduced the stackable pancake die in 1990 we have continued
to make refinements and improvements," he said. "Fundamentally the
SCD continues to deliver what our customers have come to expect from
it- unsurpassed gauge quality, no degradation of polymer in the die,
plus temperature isolation between layers in addition to unmatched
interfacial stability for a wide variety of polymers," says Kwok.
Streamlined flow passages: As polymer moves through the highly
streamlined melt channels of an SCD it has no opportunity to degrade.
There simply are no hang up points.
Short residence time: The SCD has a small wetted surface area.
This small size of the flow passage in an individual layer makes purging
faster and more economical. Running a variety of structures on one
line becomes more practical because product changeovers are faster
as the number of layers is increased.
Temperature isolation between the modules: A unique characteristic
of the SCD is its ability to allow an individual layer to be processed
at its own ideal temperature. This can mean a temperature variation
between layers of up to 40C- providing excellent opportunities to
take advantage of the characteristics of a wide variety of resins.
For example it is possible to run EVOH next to nylon.
Modular and Stackable: The modular concept makes die cleaning
easy-all the flow passages are exposed when the die is opened.
The SCD is the heart of all BE's multilayer lines. BE is the world
leader in 7-10 layer systems.
