EREMA Double Disc Technology DD

Many Erema-type plastic recycling applications suffer under problematic feeding influences such as high residual moisture and large density variations in the feed material, as well as too large feeding portions, which typically have a negative influence on the subsequent extrusion process. The extruder has to deal with these “adverses” and shows this in common with reduced or varying output performance, possibly inconsistent melting performance (moisture!), reduced product quality and increased wear, besides reduced overall productivity.

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The new Erema Double Disc process (Erema System 4th Generation) stands for a significant step towards elimination of the above-mentioned processing problems:

By means of the patented configuration of a second disc in the Erema cutter compactor (see picture) in a simple but effective way the separation of the working step “material preparation” (cutting, drying, prewarming, predensifying and homogenising in chamber I) from the step “extruder feeding” from chamber II, which also acts as a storage chamber for pretreated material, has been made possible. Hence it has become widely possible to keep away the above-mentioned negative feeding influences from the extruder and its sensitive intake zone.
The result is an extremely uniformly fed and evenly operating extruder with up to 15% performance increase regardless of detrimental factors as mentioned above.

EREMA-DD System – Separation of material pre-treatment and extruder feeding, with the following advantages

Feeding of larger single portions possible
Higher moisture in feeding material can be processed
Increased output capacity
Reduced melt temperature
Up to 30% specific energy savings compared to standard Erema systems (!) and significantly increased pellet quality, depending on processed material

In some cases, within limits, it is possible to retrofit the DD package to existing Erema plants. Talk to your Erema expert.

Animation:

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