Extrusion International 5-2021

PREVIEW 50 Extrusion International 5/2021 Lindner www.lindner.com Lindner A6-6108 Besides digitalisation and automa- tion, the circular economy is a key top- ic in the plastics processing industry. Changing from a linear to a circular economy, the quality of the recycled material plays an increasingly impor- tant role. Lindner, one of the leading manufacturers of shredders, system solutions and industrial washing sys- tems for plastics recycling, is taking on this challenge and will be present- ing a new hot-wash system for recov- ering PET (polyethylene terephtha- late) at Fakuma 2021. Equipped with the new hot-wash tower and the also new Lindner step dryer, the company is setting new standards in PET recy- cling. When shredding the plastic to be recovered, the focus of Lindner’s Micromat series is fi rmly on qual- ity, reliability, robustness and experi- ence. The circular economy remains a hot topic. Sustainability, resource conser- vation and the reduction of the eco- logical footprint take centre stage and underline the necessity of recy- cling all kinds of plastics. In addition to ef fi ciency and cost-effectiveness, the main challenge is to use a reli- ably functioning system that allows for a high degree of fl ake purity and therefore high- quality recyclate. The Micromat, Lind- ner Recyclingtech’s original power- house, shreds waste materials reliably and ef fi ciently. The signature feature of the Micromat series is its Mono Fix rotor, which guarantees universal applicabil- ity by enabling dif- ferent or mixed ro- tor con fi gurations. Various pointed or fl at knives and spe- cial counter knives can be fi tted to one and the same rotor as required depending on the input material. As a result, this Mono Fix technology ensures a high and consistent throughput with a wide range of materials that are often classi fi ed as dif fi cult. The latest product from Lindner’s subsidiary Washtech is the hot-wash system with the PET hot-wash tower and Lindner’s step dryer, which were developed speci fi cally for the PET sector. The innovative stainless steel step dryer dries the material particu- larly gently by slowly adjusting the ro- tation speed in fi ve steps. This results in less friction and a lower fi nes con- tent. The compact step dryer delivers throughputs of 1,000 to 3,000 kg/h at a drive power of 30 kW. Thanks to the new hot-wash, the last remaining contaminants such as adhesives, labels and prints are com- pletely removed fromPETbottles. The PET hot-wash tower can be operated with or without caustic solution and works with a separate water circuit. Gentle cleaning and de fi ned dwell times guarantee high-quality output materials, which are the perfect basis for producing food grade rPET. „The fi rst PET line with the new components has already been sold in German-speaking countries, and commissioning will take place this autumn,“ says a delighted Harald Hoffmann, Managing Director at LindnerWashtech. LindnerWashtech supplies the turnkey line including NIR sorting, label remover and wa- ter treatment. „With our new wash- ing components, we also want to set new standards in the PET sector and make an important contribution to a functioning circular economy,“ Hoff- mann emphasises. Spotlight on High Quality Output and Reliability, New PET Hot-Wasch System and Micromat Premium Shredder Lindner’s new PET hot-wash tower for high-quality PET recycling (Copyright: Linder Recyclingtech) The Micromat series – robust, reliable, easy to maintain. The hydraulic maintenance door provides easy and quick access to the rotor for rapid removal of non-shreddables with little material leakage and an easy exchange of knives and knife holders