Extrusion International 1-2021

42 Extrusion International 1/2021 RECYCLING POLYSTAR MACHINERY CO., LTD. www.polystarco.com fourth machine in 2017, 2018 and 2020. “We produce all types of prod- ucts with different sizes and shapes, including cement bags, sugar bags, fertilizer bags, mesh bags (for pack- ing onion, ginger, garlic, potato), the machine can handle it all with ease.” “We also recommended the machine to our friends in the industry who produce mosquito and construction net, and they are very happy using the machine as well.” The high quality pellets ensure easy reuse back again in the production process for raf fi a, non-woven, and Ad*Star block bottom heavily print- ed bags. The reusability of the PP re- cycled pellets is particularly high with the Repro-One recycling machines, raf fi a producers can use between 20% to 100% recycled pellets back into the production line depending on the fi nal product requirement. Simple-to-use, automatic pelletizing system for PP The die face cutting design of the Repro-One is designed speci fi cally to work with PP material: – Automatic pelletizing speed adjust- ment – Prevents pellets sticking due to higher melting index of PP mate- rial. Produces more uniform-sized pellets without labor intervention. – Automatic blade pressure adjust- ment – Allows the pressure between the pelletizing blades and the die head to remain constant. As a result there is less machine down time, eas- ier and faster to change blades (Pic- ture 7) Ef fi ciency and reusability go up, cost goes down In the case of a woven sack producer, who used to recycle using off-line shredders and agglomerators be- fore feeding the material into the extruder. Ever since having installed the Repro-One 100, the producer has reduced the operation cost by 30 %. (Picture 8) Picture 6: Solution 3: Plastic packaging in circular economy – Raf fi a and woven sector Picture 7: The pelletizing systemof the Repro-One prevents PP pellets from sticking to one another, ensuring stable production and output without having to constantly stop the machine for adjustment Picture 8: Raf fi a producer in Kenya has replaced three of its old recyclingmachines with a Repro- One, reducing electricity and labor costs while increasing the reusability of the recycled pellets PP Ra fi a/Woven Recycling Tape extrusion Circular loom Finished goods Recycling Pellets Jumbo bags Recycling