TPT May 2009

T echnology U pdate

Production of 3-layer telecommunications pipe

is a unique production system for fast pipe dimension change without stopping production. KraussMaffei manufactures machines and systems for plastics and rubber processing. 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 represents extrusion solutions. The injection moulding machines of Netstal, the company’s Swiss subsidiary, are designed to meet the highest requirements imposed on process implementation, parts quality and production performance, and are mainly used to make sophisticated technical and thin-walled plastic parts. The group offers a wide range of solutions, including specialised and fully integrated turnkey systems. Worldwide, KraussMaffei operates a network of 140 subsidiaries and sales agencies, and deploys over 570 service technicians, ensuring fast response and closeness to customers. egeplast – Germany

egeplast, Germany, is an independent producer of polyethylene pipe, and claims to have the most advanced PE pipe production plant in Europe. In late 2007, egeplast began producing 3-layer telecommunications pipe on its new KraussMaffei Berstorff extrusion line. The line is an example of how very high production speeds and output can be successfully combined with very tight space constraints. egeplast uses the new line to produce 3-layer HDPE and PP pipe from 32 to 63mm diameter. A KME 90-36 single-screw extruder produces the middle layer, while two KME 60-36 single-screw extruders produce the inner and outer layers respectively. The layers are joined in a KM3L RKW 73 3-layer pipehead. A small coextruder,

The extrusion line has two operator consoles, from either of which the whole line can be controlled. One of the consoles could, for example, be placed at the end of the line, up to 50 metres away. This enables the operator to control the line from the most practical location. With speeds up to 40 metres per minute, the line meets egeplast’s expectation of very high output. egeplast has also optimised its production processes in other ways. More than ten of the company’s extrusion lines are fitted with QuickSwitch, a system for pipe dimension change on-the-fly, which was developed in a close partnership between Krauss Maffei Berstorff and egeplast. QuickSwitch

mounted above the line to save space, supplies the material for the marking stripe. The motor and gearing for the melt pump and upstream screen changer are also mounted above the line, to make optimal use of available space.

Fax : +49 2575 9710 110 Email : info@egeplast.de Website : www.egeplast.eu KraussMaffei – Germany Fax : +49 89 8899 3092 Website : www.kraussmaffei.com

 A KraussMaffei Berstorff extruder combination for

high-performance extrusion of multi-layer PE pipe

Sawing. Lowering costs!

Sawing large tubes 10 times faster. How? www.rasacut.eu RSA Entgrat- u. Trenn-Systeme GmbH & Co KG • Tel. +49 2351 995-5 • E-Mail rasacut@rsa.de

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