TECHNOLOGY NEWS:
Reifenhäuser extrusion developments
Reifenhäuser has brought to market new developments in extrusion lines for wire, cable and steel pipe sheathing. These are mainly based around the consistently evolving extruders equipped with the company’s gearless REItorque direct drive technology for sheathing processes. The successful single-screw extruder series has been extended by further types of 60mm, 80mm and 90mm screw diameters with L/D ratios of 25 and 30.
In addition, the protective surface coating
of the plasticising unit has been optimized by further developing the chlorine resis-tance of the extruder screws through a new surface coating process. Changes in plasticised PVC formulations have also been taken into account by a constant improvement of the Reifenhäuser extruders. Provided with screws of very special geometries, they allow optimal production of sheathings.
Reifenhäuser has responded in time to the increasing use of metallocenes by systematically enhancing its single-screw extruders with L/D ratios of up to 30. Additional screws are no longer required. Raw materials such as rigid and plasticised PVC, metallocenes, PP and PE can now be processed economically without the need for a costly, time-consuming screw change.For corrosion protection of steel pipes, Reifenhäuser offers extrusion dies for sleeve sheathing and spiral wrapping, adapted
to the respective pipe diameter. Plastic
pipes from polyolefins can be produced
with Reifenhäuser extrusion dies in diameters from 10 to 2000mm. A broad range of spiral mandrel melt distributors adapted to the new high-performance
raw materials is available for extrusion of single- and multi-layer pipes.
Company: |
Reifenhäuser GmbH & Co Maschinenfabrik |
Country: |
Germany |
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