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Tandem line to recycle printed, humid and contaminated materials
Tandem is the new line designed to recycle plastic materials that are very printed, materials with over 10% humidity, as well as highly contaminated materials.
A GM125 Tandem line has been presented to salesmen and to potential customers. The company has organized an “open house” on May 17th and 18th, 2010, during which our guests could verify the line performances.
This system consists of feeding system AFT 125 ECOTRONIC Compac and two extruders GM125 arranged in “tandem”. The efficiency of the system is guaranteed by an innovative (and patented) degassing system. Two screen changers are connected to the line, one after the primary extruder, which expels contaminated materials with size over 0.5 mm, and another one after the secondary extruder, which allows the removal of 50-100 microns particles. This is the perfect solution in case of heavily contaminated recycled materials. The end of the line consists of TDA 4.0 pelletizer. The AFT 125 ECOTRONIC Compac, due to the new transmission system with electronic power control, provides significant energy saving, absence of water in the temperature control, the possibility to recycle materials with over 10% humidity and ensures a greater constancy of temperature of material inside the feeding silo.
The degassing station installed on the GM125 Tandem is highly efficient in the processing of materials with over 100% of print. The system is based upon the principle of creating a very large surface of exposure of the material to vacuum and in increasing the residence time of material inside the degassing section. The gas or steam that are formed by melt temperature and are mixed inside in the form of more or less distributed bubbles, are eliminated by the force created by vacuum extraction.
The plant is suitable for the regeneration of printed film with very high humidity and has a production capacity up to 750 kg/h. With a lateral dosing system it can also be used to regenerate heavy regrind.
The previous model, a GM 180 tandem line, is operating at a French customer to recycle bottles with over 100% of print, the plant has a production capacity up to 1500 kg/h.