• PULP & PAPER products
  • Pulp production
  • Mechanical pulp
  • Thickening


ANDRITZ offers different thickeners for higher throughput and consistencies

ANDRITZ Disc Filter, Drum Thickener, Hydro Drain, MicraScreen and HydraScreen

ANDRITZ Disc Filter

ANDRITZ Drum Thickener

Disc filter DF: flexible operation

The ANDRITZ Disc Filter is a vacuum-assisted thickening machine with rotating discs. High equipment availability is achieved due to the disc filter’s ability to clean the face wire during operation. An open filter deck prevents deposits from accumulating, extends the life of the filter cloths, and reduces overall maintenance costs. The sector design and its low volume speed up drainage, increasing capacity and dryness of the fiber mat.

Benefits of the ANDRITZ Disc Filter DF

  • High equipment availability
  • Low-volume sectors to speed up the drainage for increased capacity and dryness of the fiber mat
  • Integrated feed box for perfect mixing of the feed stock
  • Advanced center core to maintain constant vacuum levels with minimum pressure loss
  • Proven, reliable sector design
  • Designed-in flexibility – filtrate splits are possible during operation

Drum Thickener PRS: reliable thickening and dewatering of pulps

The performance of the gravity drum thickener is based on 50 years of pulp dewatering experience. The Drum Thickener PRS is a simple, cost efficient, and reliable filter for dewatering stock and broke (virgin and recycled fibers) in a consistency range of 0.5–5.0%.


Features and benefits of the ANDRITZ Drum Thickener PRS

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

ANDRITZ HydroDrain

ANDRITZ MicraScreen

HydroDrain HYD: gravity-based, ultra-compact disc thickener

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

Benefits of the ANDRITZ HydroDrain

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

MicraScreen MS: economical solids/filtrate separation

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 ANDRITZ MicraScreen

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

HydraScreen HS: 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 ANDRITZ HydraScreen

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

Find out more ...

Automation for the pulp and paper industry

Optimization, data analysis, augmented reality

Read more

Our service

Comprehensive service to support customer processes: from replacement parts to complete mill maintenance...

Learn more about our service
Contact us
Pulping and Fiber
  • pp-pulprecycled-thickening-discfilter.pdf
    ANDRITZ disc filter

    Disc Filter - Thickening and Fiber Recovery

    PDF : 260 KB
  • ANDRITZ HydroDrain

    HydroDrain Thickening

    PDF : 230 KB
  • ANDRITZ MicraScreen

    MicraScreen - Economical solids/filtrate separation

    PDF : 234 KB
  • ANDRITZ HydraScreen

    The ANDRITZ HydraScreen is a static bow screen for various dewatering and cleaning purposes in the pulp and paper industry.

    PDF : 376 KB
  • Pilot plant Graz

    Fiber preparation pilot plant, for customer trials, research and development

    PDF : 938 KB
  • Stock testing laboratory Foshan

    ANDRITZ China - Stock testing laboratory

    PDF : 310 KB