Extrusion International 4-2017

26 Extrusion International 4/2017 New pipe head with many advantages The core component of the overall line is the KM 5L-RKW 01-40 5-layer pipe head, which is not only a novelty in the product range of the Munich-based machine engineers; it also unique within the industry. “We have succeeded in de- signing a pipe head that combines multiple spiral distributor principles. The pipe head allows multi-layered pipes to be manufactured at high line speeds with perfect layer thickness distribu- tion,” boasts Andreas Kessler, General Sales Manager of KraussMaf- fei Berstorff. The inner layer is led over an axial spiral, while the layers of bonding material EVOH are distributed over three spiral distributors and a conical spiral has been se- lected for the outer layer. The main advantage of this design is the exact distribution of the layers, which al- lows for a significant reduction of the material costs in pipe production. “Short flow distances, complete self-cleaning and no dead zones for deposits to ac- cumulate are the other decisive advantages of the new pipe head compared to conventional designs,” explains Andreas Kessler in detail, adding: “The new pipe head concept is not only useful for PE-RT or PE-X pipes; it can generally also be used for other multi- layer pipes in which precision and cost-efficiency are of the essence.” Control system rounds off complete solution “By realizing the extrusion solutions for Enetec Plastics, we have proven that we are also able to design complete lines especially for this application from a single source,” the General Sales Manager continues proudly. The complete lines designed for and installed at Enetec Plastics also include the ma- terial metering and the downstream unit, compris- ing vacuum tank, spray bath and extractor. The cus- tomer only has to provide the winder himself. Last but not least, the C6 control system rounds off the complete solution. “We consider the automation concept to be an ideal precondition for economi- cal pipe production,” explains Michael Frenzel. The control system, which is designed for a coextrusion system with up to seven extruders, features an ex- tremely modern and intuitive operation. Parameter pages can be individually and flexibly compiled and displayed on the 24” HD screen. “In the Enetec sys- tems, the main extruder acts as the master via which the other units can be controlled, either individually or all together as a whole,” Andreas Kessler contin- ues. And the Enetec managing director sums up by emphasizing that “the extrusion technology of to- morrow means that we are ideally equipped for the growing demands of the market.” KraussMaffei Berstorff www.kraussmaffeiberstorff.com Enetec Plastics GmbH www.enetec.info/de/ PIPE EXTRUSION Detail views of the production system Detail views of the production system