PELLETISING | MACHINERY
Erema doubles up for better PCR pellets
Melt filtration is critical when working with recyclates. Erema’s Intarema TVEplus DuaFil Compact double- filtration machine for processing of post-consumer materials to pellets combines the company’s TVEplus extruder with its new DuaFil Compact filtration technology. “Because there is no discharge metering zone and the melt pump is custom designed to the application, the pressure build-up required for the second filtration unit is especially efficient and only needs a much lower temperature”, says Sebastian Sochor, R&D Engineer at Erema. As a result, the extruder can be 10 L/D shorter than the previous system design. Sochor also says that the lower
Right: Erema’s Intarema TVEplus DuaFil PCR to pellet recycling system uses low pressure build-up double filtration
melt temperature – 18.5°C lower than its predecessor – improves melt quality and reduces energy consumption. It also prevents the risk of combustion of impurities such as paper labels and wood particles, which reduces odour formation and discoloration. “Ultimately, the high quality of the
recycled pellets that we achieve with this system creates the opportunity to increasingly replace virgin material with recycled material in end
and must be replaced more frequently. And this is quite a bit of work. It isn’t easy to pull the bearing from the shaft, especially when it is seized. But it is also no option to remove the shaft itself,” says Udo Hoesker, Application Engineer at Nordson. In the redesigned lower bearing area, the shaft is divided into two parts. Each is fixed with an easy-to-release coupling and can be taken out separately. It is then easy to take out the smaller part with the bearing and work on it, Hoesker says. The improvements are valuable for compound- ing applications and also beneficial when process- ing recycled material. “We expect more inquiries from the recycling sector in the coming years, and we are prepared for it,” says Bolwerk. “In recycling, time is money, and easy and quick equipment handling is key to an efficient process.”
products, meeting the current market trend and sustainability requirements,” says Michael Heitzinger, Erema Managing Director. �
https://erema-group.com
Robust recycling Demand for recycled material is increasing and recycling companies are looking for robust and flexible pelletising systems that can handle a large variety of materials, according to Simon Weis, Product Manager for Underwater Pelletising Systems at Germany-based Intelligent Pelletizing Solutions (IPS). The company recently commissioned an ips-UWG 120 S underwater pelletising system for use with highly viscous polyolefins at RSH Polymere, a compounder of recycled plastics located at Hamburg in Germany. A challenge in this application was to design the die plate to generate as low a pressure drop as possible for the required throughput of 3,000 kg/h, says Weis. The installed system uses a perforated die plate design and a new size of the company’s ips-GT 3000/3 pellet dryer to achieve the high throughput required. In 2022, IPS added a co-rotating twin-screw
Right: Updates to Nordson’s BKG pelletisers include an improved water box safety
connection 34 COMPOUNDING WORLD | January 2023
extruder for compounding, recycling, and LFT production to its portfolio. Weis says the company can now quote complete production lines and be a single-source equipment supplier for its customers.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.maag.com �
www.coperion.com �
https://bayplasticsmachinery.com/ �
www.nordsonpolymerprocessing.com �
www.pelletizing.de
www.compoundingworld.com
IMAGE: NORDSON POLYMER PROCESSING
IMAGE: EREMA
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