Extrusion International 4-2024

37 Extrusion International 4/2024 diaphragm metering pump, which delivers the blowing agent at a pressure of 50 to 350 bar. The flow rate depends on the set pressure and the compressibility of the me - dium. For example, it can be 13 kg/h CO 2 , 8 kg/h i-butane or 20 kg/h H 2 O at 250 bar. Since the LEWA ecofoam testing system was designed for all known blowing agents, it is already explosion-proof for flammable me- dia such as propane or butane as standard and is equipped with a cooling unit for carbon dioxide. To ensure that the system can be easily transported for testing pur - poses, all components are securely mounted on a common mount base. It can be rented for up to six weeks without obligation, although longer periods are also possible by arrangement. This gives users the opportunity to test the reliable quality of the system and the consis - tently precise metering of different blowing agents in a real application environment – entirely without fi- nancial risk. LEWA GmbH Ulmer Str. 10, 71229 Leonberg, Germany www.lewa.com/en-US/systems/ lewa-ecofoam PERIPHERIE Cutting Rotor KRONOS-MAX in the Spotlight For 60 years, H. Schoenenberger GmbH has been a name synonymous with the manufacture of high-quality premium knives. The development of new, innovative products is a core competency of Schoenenberger. In the field of plastics, the company focuses not only on products for the recycling industry but also on cutting rotors for strand pelletizer. At the forefront is the unique KRONOS-Max. Technologically, the KRONOS cutter rotor is now con- sidered a benchmark in professional circles, living up to its name derived from Greek mythology. “This innova- tion is globally unique. KRONOS is based on the combi- nation of the wedge-shaped cutting blade made of car- bide with the steel cutting rotor body. The robust cutting blades (knives) are securely and form-fit inserted into the precisely ma - chined mounting grooves with- out additional clamping ele - ments or screws. This creates an extremely resilient cutting rotor, which is essential for achieving pre - cise cutting results for poly - mer strands and ensuring a long service life,” explains Andreas Suess, Product Manager at Schoenenberger, describing the innovative design principle. The “Max Coating” combines two innovations to cre- ate an exceptional product. The special carbide coating, which we call Max, offers maximumwear resistance. The coating medium is applied to the surface of the steel cut - ting rotor body at very high speed, forming a diffusion bond. This process makes the cutting rotor extremely wear-resistant and alsoprevents coating fromflakingoff. We are proud to offer our customers such an outstand - ing product for all common granulation systems, and the great positive feedback, especially from China, confirms our quality and expertise, says Product Manager Suess. H. Schönenberger GmbH Plochinger Str. 36, 73779 Deizisau, Germany www.schoenenberger-messer.de