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E-GO extruder PP and ABS granulation

Post Indusrial Waste, the Process

Today all post-industrial and post-consumer waste materials can be re-processed through the extrusion process. Plastic waste from industrial production is becoming more and more valuable in times of rising raw material prices and increasing environmental pollution. We believe that becoming more sustainable is an inevitable path for the plastics industry.

Some critical issues to be faced when processing waste materials can be: the high temperatures, the pressures involved in the extruder and the stresses involved in the recovery and reworking of plastic materials create inevitable degradation processes. These problems greatly limit processing and reuse and have an impact on the processability and technical/qualitative characteristics of the output products.

Another challenge when it comes to recycling waste materials can be residual moisture, which is why an extruder for recycling needs venting and degassing systems to remove not only moisture but also solvents or decomposed materials.

Bausano, with its system, aims at solving process criticalities such as the loss of mechanical properties and the management of the increase in residual moisture of the selected product, which is a critical parameter to be managed during the processing phase.

Case History

A single-screw E-GO 45/37 line has just been sold and tested in our test department. It has been designed for regranulation of industrial post-consumer material, in particular, PP and ABS. The customer also requested a further test with glass-fiber reinforced ABS. In this case, the result is influenced by the dispersion and percentage of the filler present in the starting material.

The line has been designed with volumetric dosing units for dosing the raw material. The installation of a degasser for stripping the volatile substances formed during melting has improved the workability of the material and its technical/qualitative output characteristics.; an automatic filter with operating pressure of up to 600 bar, an extrusion head with 16 "spaghetti" holes, a cooling tank, a dryer and a cutter have enabled the re-granulation line to reach a capacity of 200 Kg/h.

Everything has been designed within Bausano starting from the study of incoming materials and the specific requests of the customer; this is the demonstration of how our lines are very flexible and can be designed according to the specific needs of productivity and workability of the materials proposed.

Energy costs represent the third-largest cost item in the budget of plastics companies and their containment is a necessity to maintain high competitiveness on the market.
Production machinery, plant lighting and heating systems, and industrial refrigeration systems are just some of the items that contribute to raising the load curve, especially when the company has obsolete and inefficient equipment. The extruder is the most important energy-consuming component of a plastics manufacturing company. A malfunctioning system is not only at risk of failure but also consumes more energy

Designed by our team of engineers, the Barrel Induction Heating System is a Bausano technological innovation that allows savings of up to 35% on extruder consumption.

In the process of induction heating, the metal of the barrel is exposed to an alternating electromagnetic field, generated by a current-carrying coil. These coils consist of special cable wounds around a metal core. This non-contact process produces eddy currents in the material, which in turn produce heat.

The principles advantages of introducing the Smart Energy System are:

  • Ease of installation through the opening coil heater
  • Faster heating
  • Maximum energy efficiency thanks to electromagnetic induction, which enables the heaters to achieve savings of up to 35%. This is because the thermal energy generated by electromagnetism is not dispersed into the environment but is concentrated within the element to be heated, without the need for any physical contact with the element itself;
  • Processability of materials at higher temperatures, allowing considerable savings in the processing of those materials that require processing at high temperatures - e.g. PO.

Through constant investment in research and development and continuous technological innovation, Bausano is a partner for the development of a traceable plastics supply chain.

We want to actively participate and transform a currently fragmented production chain (plastics processing chain) into a virtuous circuit and ensure a quality, efficient and cost-effective final production. Our desire is to create a chain of cooperation between those who, like us, are manufacturers of plastic processing machines and those who use our equipment to produce products.

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