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Reifenhäuser Launches REIfill Technology to Save Raw Materials in Thermoforming Sheet Extruders

SpecialChem / Aug 31, 2011

Producers whose Reifenhäuser thermoforming sheet line is equipped with a REItruder can reduce their raw material costs by more than 40 percent by adding mineral fillers. The REIfill technology required for this process is not a new development, but was obviously ahead of its time when it was introduced some years ago. However, against the background of continuously rising raw material prices, the interest in this sophisticated technology is noticeably increasing. Over the past few months, Reifenhäuser EXTRUSION has sold several REIfill lines with a production capacity of more than 1500 kg/h per line. Great interest in this technology exists in Southern Europe, Russia, Asia and the Arab countries.

Processors can replace up to 40 percent of polypropylene and polystyrene with cost-effective mineral fillers such as calcium carbonate and talc by using the REIfill technology. The savings potential is enormous since the price of calcium carbonate is just one fifth of the current polystyrene price. While the resulting price advantage is eliminated in part with conventional single-screw extruders able to process expensive compound material only, the REItruder allows to fully utilize this advantage since fillers in powder form can directly be fed into the co-rotating twin-screw extruder.

In addition to cost-related aspects, the adding of mineral fillers according to the application of the end product is also of interest with regard to the product properties: filled polypropylene and polystyrene films have a higher stiffness compared to pure polypropylene and polystyrene films with identical wall thicknesses an ideal prerequisite for the production of disposable dishes. Producers whose products do not require such enhanced stiffness's may reduce the film thickness resulting in further raw material and costs savings. Furthermore, filled thermoforming sheets can be produced in many cases depending on the end product at increased cycle rates.

About Reifenhäuser Extrusion

As of July 1st, 2006, the film activities were consolidated into the newly established Reifenhäuser Extrusion GmbH & Co. KG. Today, the company is divided into the Cast Film business unit and the Extrusion Center. It comprises the product ranges thermoforming sheet, cast film / coating, components and customer service.

The Cast Film business unit develops and produces for its customers complete cast film and thermoforming sheet lines, polishing stack and coating systems as well as individual components such as dies and winders. The films are mainly used for packaging applications in the food industry. Reifenhäuser Extrusion employs about 200 people at its Troisdorf site.

About Reifenhäuser Group

The Reifenhäuser Group is one of the worldwide market leaders in extrusion line manufacturing. In the business year 2010/11, the company generated over 400 million Euros in total turnover with its more than one thousand employees at three sites. The Reifenhäuser family enterprise established in 1911 is managed for the third generation by brothers Bernd, Klaus and Ulrich Reifenhäuser.

Source: Reifenhäuser Group


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