DIRECT EXTRUSION OF MINERAL-FILLED PP PIPE. Complete solution for Hamza Industries

Munich, October 22, 2009 – Hamza Industries, an Egyptian company, which had previously bought in pipe systems from a well-known European producer, will from now on produce its own pipes by the cost-competitive direct extrusion method. The requisite technology has been supplied by KraussMaffei Berstorff. The direct extrusion line for highly filled three-layer PP soundproof pipes, consisting of a KMG 81-40 co-rotating twin-screw extruder as mainextruder for the middle layer, a KME 45-30 B/R coextruder for the thin inner and outer layers, and a KM-3L RKW 74 three-layer mixing head. COMPLETE SOLUTION WITH ALL DOWNSTREAM UNITS FOR PIPE PRODUCTION The line includes the complete downstream for pipe production – calibration, cooling, haul-off, sawing, chamfering and socketing. The extremely stiff and impact resistant PP block polymer used for the middle layer is fed into the extruder’s main feed throat via gravimetric differential scales, together with stabilizers and colour masterbatch – and regrind if it is being used. 70% by weight barium sulphate is fed into the side feed throat. A KM-ZSP 90 gear melt pump generates the necessary die counterpressure. The whole line is controlled by the main extruder’s C5 controller. The line is configured to produce pipe from 50 to 250 millimetre diameter and for output up to 700 kilograms an hour. Alternatively, the output of PP melt highly-filled with barium sulphate can be directed to an underwater pelletizing unit via a hydraulic switchover valve. Pellets produced in this way can be used to injection mould the necessary connecting parts. Contact for more information: Matthias Andreesen Viegas Phone +49 89 8899 2592 Fax +49 89 8899 3092 matthias.andreesen@kraussmaffei.com Andrea Dietl Phone +49 89 8899 4194 Fax +49 89 8899 3092 andrea.dietl@kraussmaffei.com ----------------------------------------------------------------- KRAUSSMAFFEI COMPANY PROFILE In terms of sales, KraussMaffei is world market leader in machines and systems for plastics and rubber processing. With its three divisions – Injection Moulding Technology, Extrusion Technology and Reaction Process Machinery – KraussMaffei is a premium partner for the plastics and rubber processing industries worldwide. The group markets its products under the KraussMaffei, KraussMaffei Berstorff and Netstal brands. The KraussMaffei brand covers the whole spectrum of injection and reaction moulding technology, while the KraussMaffei Berstorff brand stands for successful extrusion solutions. The injection moulding machines of Netstal, our Swiss subsidiary, meet the highest of requirements imposed on process implementation, parts quality and production performance and are mainly used to make highly sophisticated technical and thin-walled plastic parts. With over 100 years’ of expertise and know-how in machinery for plastics and rubber processing, KraussMaffei is today a major technology and process partner for industry. The group offers a wide range of solutions that includes specialized and fully integrated turnkey systems. Headquartered in Munich, the company operates a worldwide network of 140 subsidiaries and sales agencies, and deploys over 570 service technicians, ensuring fast response and closeness to customers everywhere.