Extrusion International 1-2025-USA

46 Extrusion International 1/2025 EXTRUSION TECHNOLOGY Think big: a modern line for the production of large-diameter polyethylene pipes up to 1600 mm Tecnomatic announced the supply of its latest high-capacity extrusion line for polyethylene (PE) pipes, speci cally designed for pipes with diameters up to 1600 mm, to one of Europe's most distinguished pipe manufacturers. This state-of-the-art line brings together Tecnomatic’s cutting-edge Zeus EVO series gearless extruders and the innovative Venus 1600 die-head, designed to meet the demands of large-diameter, thick-walled pipe production with unparalleled precision and output ef ciency. A t the heart of this advanced line are two Zeus EVO series extruders, engineered to deliver outstanding power and ef ciency. The updated screw design im - proves material ow plasticization, and reduces energy consumption. The new optimized spiral feeding bush ensures a smooth and consistent material feed, minimiz- ing uctuations and enhancing homogeneity, a critical factor for producing large-diameter pipes with uniform wall thickness. Together, the extruders deliver a cumu- lative output of almost 2,000 kg/h, which enables high- speed, essential for the increasingly demanding market requirements in large-diameter pipe production. Each extruder is equipped with a gravimetric dos- ing system featuring three separate components for ultra-precise dosing and weight control. This gravimet- ric system ensures that material feed and pipe weight are tightly regulated, allowing for exceptional meter weight accuracy across each run. The precision dosing plays a critical role in maintaining product consistency, particularly vital in producing large-diameter pipes, where wall uniformity is key to meeting quality and per- formance standards. Venus 1600 Die-Head: Advanced Centring for Wall Thickness Consistency The Tecnomatic line includes the re-designed Venus 1600 double-spiral die-head, which is central to produc- ing large-diameter pipes with uniform wall thickness. The Venus 1600 is engineered speci cally for pipes of this calibre and integrates innovative mechanical and thermal centring solutions, ensuring optimal thickness uniformity even with very high wall dimensions.