Extrusion International 2-2025

43 Extrusion International 2/2025 HV Plastcompactors can be used to agglomerate a wide variety of materials into products with a high bulk density: thermoplastics such as bers, nes, tapes, foams, stretch or thin lms, powders or shavings, as well as plastics that are dif cult to convey, store or mix. In particu- lar with stretch lms or foams, ade - quate drying by mechanical or ther- mal means would only be possible with an immense use of energy. This is where a Plastcompactor is the so- lution of choice. Moreover, the compactors from Herbold Meckesheim are often in- stalled downstream of washing lines: Here, the damp material is heated in the compacting zone to such an extent that the moisture escapes. With subsequent agglom- eration – in conjunction with a secondary granulator and a classi- er – residual humidity of less than one percent is achievable. Likewise, various additives such as lubricants, plasticizers or color pigments can be intensively incorporated using special dosing units on the feeding screw. Compounding or the recrys- tallization of PET akes are further elds of application. The HV 70 from Herbold Meckesheim also combines high throughput with low maintenance costs and a fully automatic control system in which settings for different infeed materials can be recorded. And thanks to the performance and temperature monitoring, the pro- cess is controlled in such a way that only minimal personnel deployment is necessary. In the course of the latest en- hancements, the disk geometry of the Plastcompactor HV 70 has been signi cantly modi ed. In combina - tion with improved automatization of the compactor and a more com- pact design, manual interventions during operation are even less fre- quently required, offering custom- ers a higher degree of operational reliability. On the other hand, the silo and the feeding device have been op- timized in such a way that even more complex materials with the lowest bulk densities and the most difficult flow characteristics can now be handled safely. This opens up further fields of applica- tion for the HV 70 from Herbold Meckesheim. Herbold Meckesheim GmbH Industriestr. 33, 74909 Meckesheim, Germany www.herbold.com Plastcompactors process the feedstock in continuous operation between a rotating and a stationary disk The agglomeration produces a free- owing regrind of high bulk density