33 / 48
UNICOR is known around the world for its advanced corru-
gation technology and components. But the German com-
pany is also a leader when it comes to die heads for extruding
corrugated pipes. Alongside of its existing die heads, such as
those for the production of wastewater and drainage pipes
with diameters up to 1800 mm, the company is now releas-
ing two new die head systems for multilayer manufacturing.
SWP 58-2L for single and double-layer electrical conduits
The SWP 58-2L is a modularly constructed die head that was
specially designed for the manufacture of electrical conduit.
Both single-layer and double-layer conduits can therefore be
produced with PE/PP/PA and PVC/ABS materials.
www.unicor.comExtrusion International 3/2016
33
With its newly developed die heads, UNICOR is bringing
high-performance tools for the extrusion of technical
corrugated pipes and electrical conduit to the international
market.
TWP 90/160/270 for multilayered electrical conduit
The TWP series was specifically developed for the production
of double wall corrugated pipes – particularly for under-
ground use. The corrugated outer layer is made from two
strata. This allows the pipe manufacturer to use recycled
granulates while maintaining the color classification of the
pipe types.
To accomplish this, a new distribution system was developed.
It provides a perfectly symmetric pre-distribution which in
turn provides the thinnest cover layers and optimal color cov-
erage.
SWP-2L die head
PE/PP pipes produced with the new UNICOR die heads
Innovative Multilayer
Extrusion Tools