A cooperation of ARTEC and KraussMaffei Berstorff
EDELWEISS TECHNOLOGY
EDELWEISS TECHNOLOGY
A cooperation of ARTEC and KraussMaffei Berstorff
A NEW STRATEGY FOR BEST QUALITY.
Edelweiss Technology: From now on the cooperation between ARTEC and KraussMaffei Berstorff provides a new way
to easier, more productive and more profitable recycling as well as compounding of plastic – with a new technology for
recycling-compounding units which offers maximum flexibility, a broad material spectrum and even better quality!
The strategic partnership between ARTEC, a specialist for recycling units, and KraussMaffei Berstorff, a manufacturer
of extrusion units, shows completely new possibilities for recycling and compounding. The brand new extrusion concept
“Edelweiss” combines recycling and compounding in one single process and enables throughput rates between 300
and 2,500 kg/h, teaming the preparation technology of ARTEC with the twin-screw-extruder technology of KrausMaffei
Berstorff.
Not only the energy balance in the material circle is improved by this new technology, also the material quality is considerably enhanced due to the minimization of the shear energy percentage during the plasticization, because repeated
heating of the raw material is avoided in this integrated process.
ARTEC’s recycling know-how is contributing
the processing technology of material-cutting
and compacting with dehumidifying potential,
extrusion units with degassing-systems and
individually customized melt filtration units into
the partnership. Inside the cylindrical cutter-compactor the foil- and fiber-material coming from
an upstream washing process with a moisture
content up to 12 % is cut by a rotating blade set,
compacted and due to the generated frictional
heat automatically dried. The cutter-compactor
feeds the material flakes by centrifugal force
into the tangentially attached screw-extruder,
where they are plasticized and homogenized. This
applies to all kinds of thermoplastics in any state
of process.
On the way through the extruder the plastic melt
passes one or more degassing zones with applied
vacuum. In these zones impurities and low-molecular polymer substances which are converted into
a gaseous state are extracted. Afterwards the still
contaminated plastic-melt is flowing through a
continuously working high-performance melt filter.
Recycling
Feeding
Material-cutting and Compacting
Degassing
Filter
Melt Pump
Single-screw-Extruder
Additives
Degassing
Compounding
Pelletizing
Twin-screw-Extruder
Compounding-Competence by KraussMaffei
Berstorff. The prepared, ultrapure plastic melt
is dosed into the ZE-twin-screw-extruder either
from the top or from the side with the help of
a pressure- und volume constant working melt
pump. This is where the important part of the
refinement processing of high-end compounds
takes place, based on the long-time and comprehensive experience in compounding of the
twin-screw-extruder specialists from Hannover. If requested, additives like mineral fillers,
reinforcing fibers, color master batch etc. can be
added and customized to the recyclate melt. So
it is possible, for example, to produce blow-extrusion-film compounds in almost virgin material
quality (filled with CaCO3 up to 70 - 80 %) from
foil recyclate.
The two-stage process is optimally utilizing
the excellent compound performance of the
twin-screw-extruder even with high additive
contents. It also smartly avoids the problem of
dosing material with a low bulk-density, as the
pre-drying and compacting takes place in the
upstream cutter/compactor - single-extruder
screw unit.
ARTEC machinery GmbH
Industriestraße 10 / 4531 Kematen, Austria
T +43 (0)7228 6979-0 / F +43 (0)7228 6979-10
[email protected] / www.artec.at
For 15 years Austrian Recycling Technology ARTEC, located in Upper Austria / Kremstal, has
set new standards in technology development, efficiency and environmental awareness. ARTEC
recycling units offer the most efficient way of plastic recycling. Modern industrial design, innovative technology and fast service features guarantee maximum profitability for every recycling
unit. Since 2010 Austrian Recycling Technology ARTEC is part of the GAW GROUP, a worldwide
operating company network for industrial plant construction, headquartered in Graz.
KraussMaffei Berstorff GmbH
An der Breiten Wiese 3 - 5 / 30625 Hannover, Germany
Phone +49 (0)5 11 5702-0 / Fax +49 (0)5 11 5702- 416
[email protected] / www.kraussmaffeiberstorff.com
KraussMaffei Berstorff, headquartered in Hannover, stands for advanced, future proof extrusion
solutions. The company’s product spectrum ranges from single extruders with applicationspecific tooling to up- and downstream components and fully automated extrusion lines. This
product range, plus a customer-specific choice of service modules, guarantees that KraussMaffei
Berstorff is a robust system partner for customers such as the bulk chemicals, automotive,
construction, packaging and pharmaceuticals industries. KraussMaffei Berstorff, part of the
KraussMaffei Group since 2007, was created through a merger of KraussMaffei and Berstorff,
an engineering specialist with a long tradition.