Extrusion International 6-2023

42 Extrusion International 6/2023 - 100% recyclable and ecological - Perfect material distribution - Compatible with existing washing and filling lines - Easy manufacturing on site Compania Cervecera de Nicaragua chose the 2-stage stretch blow molding process with the help of the APF- 30 machine: the bottle is produced from preform to avoid any risk with resin. The mold with inserts provides greater flexibility in container design without the need to stop the machine. Only certain parts of the mold surface are changed. This reduces investments and changeover time for another bottle design. The air recovery system implemented in the APF-30 blow-molding machine by PET Technologies allows to save up to 25% of the expenses in electrical energy and compressed air. 100% of the blown air is re- used in the low pres- sure line. The deep heating system and intense air-cooling provide a uniform temperature distribution between the inside and outside of the preform wall. Finally, the 5US gallon PET bottle shines as if it were glass. Compañía Cervecera de Nicaragua www.ccn.com.ni EXTRUSION TECHNOLOGY Redefining Plasticization and Performance When it comes to extrusion systems, no part is more critical to productivity and product quality than the extruder plasticizing group. Recognizing this, Tecnomatic at K-show 2022 has unveiled its latest innovation in extruder technology – the EVO version of the extruders in L/D 37 and 40. T he EVO version represents a significant leap forward in Tecnomatic's extruder design, incorporating a com- pletely redesigned screw geometry and a newly engi- neered spiral feed-bush. Building upon by a new project of research and development, this evolution aims to en- hance plasticization, improve homogeneity, andmaximize energy efficiency, while maintaining the exceptional per - formance that Tecnomatic extruders are renowned for. The key highlight of the EVO version lies in its screw design. The geometry of the screw has been meticu- lously reimagined, leveraging advanced engineering techniques and cutting-edge materials to optimize plas- ticizing capabilities. This enhanced plasticization leads to superior melt quality, resulting in extruded products of excellent quality. Furthermore, the newly designed spiral feed-bush significantly augments the extruder's performance. It ensures a consistent and uniform feeding process, by precisely controlling the flow of materials into the screw. This not only improves the homogeneity of the final product but also minimizes variations in output, enhancing overall efficiency and reducing waste. One of the key objectives of the EVO version is energy savings. Tecnomatic understands the importance of sus- tainability in today's world and has integrated energy- efficient features into the new series. The redesigned plasticizing group minimizes energy consumption, re- sulting in lower operating costs and a reduced environ- mental footprint. With the EVO version, Tecnomatic is actively contributing to a greener and more sustainable extrusion industry. Massimiliano Vailati, Sales Director at Tecnomatic, said: “It is worth noting that while the EVO version represents a significant advancement, Tecnomatic has ensured that it maintains the exceptional performance levels the market has come to expect. By combining state-of-the-art design with its extensive expertise, Tec- nomatic has created an extruder that outperforms its predecessors.” TECNOMATIC S.r.l. Via Emilia, 4, 24052 Azzano S. Paolo (Bergamo), Italy www.tecnomaticsrl.net A multilayer extrusion line with an energy saving gearless extruder EVO and piggyback co-extruder for external layer