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12-04-2017

Melt Filter ERF350

Throughputs of up to 3800 kg/h

With its newly developed ERF350, Ettlinger Kunststoffmaschinen GmbH, manufacturer of high performance melt filters and injection molding machines for high shot weights, sets new benchmarks in the filtration of contaminated polymer feedstock. It can filter up to 3800 kg of contaminated polymer feedstock per hour.

The new ERF350 boasts high throughputs of up to 3800 kg/h, depending on the screen size and the type and level of contamination in the melt to be cleaned, in combination with ultra-low melt losses (© Ettlinger)

This first model in a new, performance enhanced generation of the ERF series is suitable for processing all standard polyolefins and polystyrenes as well as numerous engineering plastics, for instance styrene copolymers, TPE and TPU. Like all ERF models, it is capable of removing foreign particles such as paper, aluminum, wood, elastomers or high-melting polymer composites containing up to 18% contaminants. And just like all other Ettlinger filter systems in the future, this brand new machine can be very easily integrated into Industry 4.0 environments.

Depending on the type and level of contamination in the melt to be cleaned and the selected screen size, the ERF350 achieves a maximum throughput of 3800 kg/h in combination with the same ultra-low melt losses. It is thus positioned much higher up in the portfolio than the existing ERF250, which has a maximum throughput of 3000 kg/h. This represents an increase of around 28% for the same filtration surface and typical small footprint. Users profit from more productivity when recycling contaminated waste plastics from industrial or consumer sources. Furthermore, experience to date has shown that energy consumption is about as low as that of the ERF250 in spite of the far better efficiency.

Like all ERF and ECO filters built by Ettlinger, the new, self-cleaning ERF350 model works with a rotating, perforated drum, through which there is a continuous flow of melt from the outside to the inside. The screen sizes range from 80 µm to 1300 µm. A scraper continuously removes the contaminants that are held back on the surface and feeds them to an exit screw or discharge shaft. This enables the filter to be used fully automatically and without any disruptions over a period of weeks and months without having to replace the screen. The advantages of this design are the constant melt pressure at the filter outlet leading to more reliable processing, ultra-low melt losses – recognized throughout the industry – and good mixing and homogenizing of the melts.

Company profile

Ettlinger Kunststoffmaschinen GmbH

Messerschmittring 49
DE 86343 Königsbrunn
Tel.: 08231 34352
Fax: 08231 34354

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