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Continuous: Melt filtration

Wood and paper are very common impurities in plastic recycling. Conventional filter systems using mesh screens are usually unable to cope with even small amounts of such impurities. The continuous CDF-type melt filter separates contamination such as paper, wood, aluminum or rubber as well as unmelted plastics efficiently. A scrapper removes the contamination from the surface of a rotating screen disc. The impurities are discharged continuously from the CDF, while the filtrated melt is forwarded to the pelletizing system. The melt pres- sure in front of the filtration disc controls automatically the function of the Scraper.

Easy maintenance: Filter disc replacement

The filter discs are manufactured from hardened steel. Replacement is very simple as the filter screen is freely accessible once the split housing has been opened. Consequently, the filter screen can be replaced within approximately 40 min using conventional tools.

The CDF melt filters from MAS



CDF 300

CDF 300-D

CDF 500

CDF 500-D

Diameter of filter

1 x Ø 300mm

2 x Ø 300mm

1 x Ø 510mm

2 x Ø 510mm

Filter surface

706 cm²

1384 cm²

1830 cm²

3650 cm²

Filtration finesse

100μm - 750μm

100μm - 750μm

100μm - 750μm

100μm - 750μm

Max. pressure difference

150 bar

150 bar

150 bar

150 bar

Max. pressure

200 bar

200 bar

200 bar

200 bar


300 - 700 kg/h

700 - 1600 kg/h

700 - 1600 kg/h

1300 - 2000 kg/h

Technical design protected by various patents

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