Tilting filter dryer – SteriFilt/RFD

Nutsche type pressure filters are extensively used to separate solids from liquids with the added benefit of removing impurities.
When drying is also required or the transfer of wet cakes to a dryer can impact product quality or when it is potentially hazardous to operating personnel, we provide filter dryers that combine pressure filtration and vacuum drying in one unit.
A filter dryer can process a concentrated slurry and discharge a dry powder.

The tilting filter dryer combines the traditional benefits of our filter dryers with added advantages:

  • Automated and complete product discharge, even under strict containment conditions
  • Dust filter not required
  • Improved and reliable cleanability
  • Reduced maintenance

It is specifically designed for processing highly potent active pharmaceutical ingredients (HPAPIs) used in sterile products.

Tilting Filter Dryer Image 2 scaled



Features and options

Show more Show less


  • Filtering surface up to 2,5 m2
  • Design pressure: – 1 barg to + 5 barg
  • Design temperature: – 10°C to + 120°C

Flat bottom

  • Flanged to the cylindrical vessel, secured with:
    • Super clamp

Filter media

  • Monolayer:
    • Synthetic cloth
    • Metal mesh
  • Sintered multilayer metal mesh

Top entry Helix type agitator
Designed to optimise re-slurry, drying and discharge operations

Double mechanical seal

  • Flushed
  • Gas lift off

Discharge port located on the domed top 

  • Pneumatically operated segmented ball valve
  • Pneumatically operated segmented ball valve flush to the vessel wall
  • Pneumatically operated segmented ball valve flush to the vessel wall, with heated segment
  • Butterfly split valve complete with transition chute

Welded waterproof insulation

Chemical, pharmaceutical and sterile versions

Material of contact (MOC) with the product

  • 316L stainless steel
  • Duplex Stainless steel
  • Alloy C 22
  • Titanium

Other materials are available on request.


Show more Show less

Pack-off isolator (up to OEB5)

Temperature control unit (TCU)

  • Steam operated
  • Electrically operated

Vacuum skid

  • Dry running vacuum pump
  • Oil lubricated vacuum pump
  • Liquid ring vacuum pump
  • Pre-condenser
  • Post-condenser
  • Condensate recovery tanks
  • Condensate extraction pumps

Other accessories

  • Inerting systems provided with oxygen analyser on request
  • PLC automation system


Show more Show less

The tilting filter dryer is specifically designed to process highly potent active pharmaceutical ingredients (HPAPIs) in the pharmaceutical industry, but may be applied in other industries as well.
As an alternative, we offer our traditional filter dryer extensively used in different industries from biochemicals to waste recovery.

More about filter dryers

Filter dryers can be provided as standalone units or modular turnkey systems to simultaneously satisfy functional needs and efficiency in project costs and execution time.

More about plants

More about processes

For new or innovative applications or to assess the correct sizing for consolidated processes as well, we provide support to customers with testing operations to study product behaviour, select filtration media, identify the ideal process parameters and support scale-up.

More about R&D

Want to know more about the tilting filter dryer - SteriFilt/RFD?

Contact us