| Screws as individual as the polymers Invotec combined with almost 40 years of experience from Groche Technik offer our customer real choice for all their screw and barrel requirements. Click here to read more about Groche (pdf 1mb)Utilising the latest technology we offer plasticising barrels to suit almost any application. Our processing centres and machines that are always kept up to the latest state-of-the-art enable us to comply with the high quality requirements of our customers. New or regenerated plasticizing units produced by us are characterised by long life and their ability to handle above-average demands. All our screws are always manufactured using the latest equipment including the latest 'Whirling Technology' with Siemens control. We produce optimized wear and corrosion resistant high performance screws in diameters between 14 mm to 200 mm and in lengths up to 6 m. CAD/CAM applications in the design of our plasticizing units. The screw flights are armoured with high grade alloys in the plasma powder application welding process. Standard Materials include:Nitrided 1.8550
Through hardened 1.2379 D2
Through hardened 1.4114 anticorrosion
CSM 21 (17-4) though material anticorrosion
HIPS powder metal steels
Special specifications such as PVD coatings
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