Extrusion International 6-2025

38 Extrusion International 6/2025 К 2025 Flexible Material Use Thanks to Double Degassing Ef cient processing of different raw materials, almost no material pre-treatment, and high quality of the lms and sheets to be produced – battenfeld-cincinnati meets these demands for modern resource management with the new BC 120-40 DVT single-screw extruder. The rst extruder with the innovative Dual Vent Technology was on display at the booth at K 2025. Double degassing is nothing new in single-screw ex- truders. However, until now, the degassing connections were located directly next to each other and served to in- crease the overall degassing capacity at a single area. In contrast, Dual Vent Technology (DVT) creates two inde- pendent degassing areas along the extruder's processing unit. This enables more effective removal of gases. The completely redesigned screw concept enables the conditions to separate degassing chambers with- out changing the familiar user-friendly operation of the single-screw extruder. “Combining our expertise within the group, we have succeeded in developing an innovative concept that combines two separate degas- sing zones on one screw,” explains René Hartmann, Re- gional Sales Manager at battenfeld-cincinnati. Thanks to this separation, volatile substances with low partial pressure can be effectively removed from the melt in the rst intensive degassing zone, while volatile sub - stances with higher partial pressure can be removed in the second zone. This enables to remove signi cantly more moisture and other volatile components from the melt than with one degassing zone. This in turn ensures high product quality, among other things, by prevent- ing bubble formation. "For the processing company, this reliability means, on the one hand, that it hardly needs to pre-dry its material, thus saving on equipment and the associated acquisition and energy costs. On the other hand, the new double degassing extruder allows them to use untreated residues and regrinds and still extrude high-quality semi- nished products," says René Hartmann, explaining the increased exibility in terms of material use. With this further development, battenfeld-cincinnati is initially focusing on ABS processing; however, de- pending on the material and vacuum technology, other functions are also possible, such as the removal of odors using the new Dual Vent Technology. battenfeld-cincinnati www.battenfeld-cincinnati.com Singe screw extruder BC 120-40 with Dual Vent Technology (©battenfeld-cincinnati) Extrusion Tooling – Impressions from K Show Guill Tool & Engineering, the global leader in extrusion tool- ing, attended the K Show in Dus- seldorf, Germany. Guill’s technical sales engineer Peter Leary shared his thoughts on the companies they met at the show, the international extruders they’ve partnered with, intriguing applications as well as what caught his attention. Addi- tionally, the company’s European sales manager Gerjan ter Wal dis- cussed the role of Guill Tool Europe. Known as the world’s premier plastics trade fair, K brings together global pioneers from the plastics and rubber industry. Located in Hall 1, Guill Tool & Engineering’s team included Peter Leary, Technical Sales Engineer, Extrusion Division, Jacob Marcure, Design Engineer and Gerjan ter Wal, Sales Manager in Europe. Commenting on the companies met at the show Peter Leary said, “We met a wide range of compa- nies across the extrusion and plas- tics industry including wire and ca- ble manufacturers, medical tubing producers, compounding specialists and machinery OEMs. There was also a strong representation from raw material suppliers, large pipe extrusion and automation/controls providers, which gave us valuable insights into emerging technologies and potential partnerships.” Guill interacted with extruders and processers from all over the world, including Europe, Asia and the Americas. Leary added, “A