PrimeFilterD CCBaglessSectors inner View


Highly efficient thickening for any fiber processing application

ANDRITZ offers a range of thickeners with different machine concepts in order to meet highest demands as to consistency, throughput and availability. Our thickeners are perfectly suited for the processing of virgin and recycled fibers, broke as well as mechanical pulp.

PrimeFilter D disc filter

Technically superior performance with less maintenance

With over 600 units in operation, the vacuum-assisted ANDRITZ DiscFilter is regarded as key equipment when it comes to handling most demanding thickening applications. A series of technical innovations have been incorporated into the new ANDRITZ PrimeFilter D to deliver superior throughput and operation with reduced energy costs:

  • HHw technology for advanced feeding and optimum flow conditions within the filter
  • CC bagless sectors offering significant improvements in terms of operation and maintenance
  • Two-level shaft sealing is easy to accessible and ensures improved reliability at superior filtrate quality
ANDRITZ PrimeFilterD DiscFilter closed

Benefits of the PrimeFilter D

  • Superior throughput – production increase per disc area of up to 20%
  • Superior operation
  • Less energy, less water needed
  • Improved maintenance

Drum Thickener

Reliable thickening and dewatering of pulps

The performance of the gravity drum thickener is based on decades of experience in thickening. The ANDRITZ Drum Thickener is a simple, cost efficient, and reliable filter for applications in a consistency range of 0.5–5.0%.

Drum thickener PRS

Benefits of the ANDRITZ Drum Thickener

  • Excellent runability
  • Easy start-up and shut-down procedures
  • Self-adjusting operation
  • Low maintenance costs
  • No drop leg required – easy to install


Ultra-compact, gravity-based disc thickening

The ANDRITZ HydroDrain is a compact gravity thickener, insensitive to changes in process conditions such as throughput and inlet consistency.

HydroDrain HYD

Benefits of the HydroDrain

  • Compact design
  • Efficient and reliable dewatering
  • Large dewatering area with a small floor footprint
  • Low maintenance requirements
  • Fully assembled for minimum site erection


Economical separation of solids and filtrate

The ANDRITZ MicraScreen is a versatile, pressure-fed bow screen for various separation and fractionation applications in the pulp and paper industry. It can be used for fiber recovery, thickening, solids removal, fractionation, and fiber/filler separation.


Benefits of the MicraScreen

  • Cost-effective solids/filtrate separation for various applications
  • Simple, reliable operation
  • Automatic screen plate washing and feed slice flushing
  • Compact, closed design
  • Wide screen plate selection
  • Pressurized feed – high capacity


Static bow screen for dewatering and cleaning

The ANDRITZ HydraScreen is a static bow screen for various dewatering and cleaning purposes. It can be used for fiber and solids recovery, thickening process and waste waters, dewatering of chips, washing, and barker drum water.

Benefits of the HydraScreen

  • High capacity in relation to required floor space
  • Minimum control and maintenance
  • Automatic screen surface washing
  • Low investment and operating costs
  • Wide screen plate selection

Find out more ...

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Paper, Fiber and Recycling Division
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