As a next-step development of the proven TVE extrusion system with high-performance degassing for difficult recycling jobs, the degassing and homogenisation performance of the TVEplus has been considerably enhanced. This system also includes new and improved downstream components in terms of technology, maintenance and cleaning from the hot die face pelletiser to the drying centrifuge.
The possibilities and benefits of Erema's other recycling system solutions when processing clean production waste up to post-consumer waste will also be demonstrated at the Fair. Tailor-made systems for polyolefins and technical plastics, bottle-to-bottle-PET recycling systems, inline technologies for the direct production of films, fibres and strapping from PET bottle flake with Vacurema technology including automatic melt filters and pelletising systems will be presented in detail.
The Erema subsidiary 3S of Roitham, specialists in components such as screws, cylinders and intake parts for extrusion, will also be at the stand to present a new system for measuring the wear on extruder cylinders and, with the now established Lasex process, screws that are particularly resistant to wear.
Recycling scope extended considerably - energy efficiency increased once again
With the further development of the TVE extruder configuration with the melt filter upstream of the melt degassing extruder section to form the TVEplus technology, even extremely difficult waste materials - including full-surface and multilayer printed packaging films that are increasing in use - can be processed in a single pass to produce high-grade recycled pellets.
Binding agents and contaminates that are always contained in the inks are particularly problematical as they previously only partially broke down at the processing temperatures of the plastics matrix and could not be efficiently removed in the extruder degassing zone.
New design features on the TVEplus extruder, in particular the new extruder screw mixing zone which is situated between the melt filter and degassing station for the melt, ensure that both processing and the degassing of the melt are now highly effective.
The filtration performance is also increased due to improved extruder screw design and allows for lower melt temperatures, making it extremely material friendly while achieving higher throughputs at the same time.