Polystar installs fourth pelletizing line to Algerian recycling company

In August 2015, Polystar installed its fourth high-performing pelletizing line in the Algiers-based film recycling company. The newly installed line increases the total capacity to 3 tons per hour, processing both washed agricultural mulch film and post-industrial film as well as regrind materials.

With this successful set up and repeat order within such a short period of time, Polystar once again demonstrates its competence in the sector of agricultura (AG)l film recycling.

The Algiers-based film recycler (and producer) has purchased its first Polystar in 2013, and has expanded its recycling capacity over the last 2 years by nearly three times. Working together with another washing line manufacturer, the same set up (washing line + Polystar pelletizing line) has been operating since 2013.

Agricultural film occupies a significant part of recyclable film. Yet, the high degree of contamination (through mineral and organic material) of the soft and light-weighted film waste makes reprocessing difficult. The right recycling solution with a combination of shredding, washing, drying and extruding pelletizing is crucial in order to process AG film efficiently, ensuring high throughput rates for high quality recycled pellets, even in the case of materials which are difficult to process.

The washing line first covers the initial material size-reduction (with a double shaft shredder) and pre-washing of the film. A “squeezing dryer” then performs the de-watering and drying process, turning the film flakes into a more rigid form. It is then processed in Polystar’s recycling pelletizing system, which features a double degassing and die-face pelletizing system.  

With the combination of the two waste plastic waste recycling machines, the producer can recycle washed agricultural film flakes into high quality pellets. The Polystar recycling machine features an integration of a cutter compactor that provides extended drying, cutting, densifying, dosing (adding black color additives with an additive feeder), filtration, double degassing all in one single step.   

In addition to washed AG film, the recycler is also using the Polystar line to process post-industrial film directly without pre-washing, including printed OPP, CPP, HDPE post-industrial and LDPE shrink film. Through the rapid densifying and compacting process in the cutter-compactor, the machine can process up to 1100kg per hour doing post-industrial LDPE film. The combined washing-pelletizing system can reach 700~ 900kg in each extrusion pelletizing system depending on the level of contamination.