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Noggerath Rotary Drum Screen RSI-DF

With the Noggerath® Rotary Drum Screen RSI-DF, Aqseptence Group offers you a machine with two revolutionary concepts. With a double filter system it is possible to operate both a pre-filter and a fine sieve. Furthermore, contrary to the conventional technology, the sieve drum and the spiral conveyor are independently driven. This allows a drum design in the inlet area without a suspended rotary arm. The inlet zone is constantly free and offers great benefits not for the incoming solids only, but also for the head loss.

Unique Selling Point

  • Double filter system:
    –    In the same unit a fine and coarse screening sieve
    –    Fine sieve is protected by overloading in case of large solid
    –    Coarse filter with back wash system
    –    Reduction of investment by omission of a separate coarse Screen
  • Double drive:
    –    The rotation of the drum is independent of the rotation of the spiral
    –    Due to the independent drive, the screenings can be run empty in the hopper of the conveyor trough.
  • Open drum inlet Zone:
    –    free inflow of the Screenings
    –    without rotary arm low head loss
    –    no entangling
  • The screw conveyor for capture and transport of the solids retained are equipped with suitable brushes in the sieving zone to clean the drainage area in the conveyor. The brushes are made in segments, bolted on the spiral, allowing an easy replacement of the worn pieces only.
  • Easy and fast maintenance and thus low costs due to bolted main parts of the unit


Noggerath® Rotary Drum Screen RSI-DF is a combined machine consisting of a screen, a spiral conveyor and compactor. The rotary drum is installed at an angle of 35° in the channel.  Solids in the incoming flow larger than the screen opening size collect on the inner surface of the drum, causing a gradual blinding. 
At a predetermined upstream level the screen drum and screw conveyor starts rotating independently. The sedimented solids rotate upwards with the drum, where they drop gravitationally into a conveyor trough located in the center of the drum supported by a spray bar. There they are caught by the spiral and transported up to the press zone. During the rotation the spiral brushes removes the solids from the inner surface of drainage zone. In the press zone the screenings are conveyed, compacted and dewatered prior to disposal or further treatment.

Locations and Contact


Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616



Aqseptence Group GmbH, Bückeburg

Sales Location
Ziegeleiweg 2
31675 Bückeburg

Tel: +49 5722 882 0

Fax: +49 5722 882 282



Aqseptence Group GmbH, Aarbergen

Sales and Manufacturing Location
Passavant-Geiger-Strasse 1
65326 Aarbergen

Tel: +49 6120 280

Fax: +49 6120 28 2182


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