Paddle dryer – Steridry ES

Drying is a common process step required after a solid-liquid separation. Vacuum drying is the most efficient and effective means to obtain this for most pharmaceutical and chemical products, facilitating the processing also thermal sensitive substances as well.
Our agitated vacuum dryers ensure homogenous mixing of the product, improving the heat exchange factor and, as a final result, further reducing the drying time.

The ES dryer combines optimum drying performances with a very efficient horizontal agitator enabling the continuous removal of the product from the walls for improved mixing and easy discharge.
Easy accessibility to internal areas, via a hinged side cover, minimises product loss and improves cleaning and inspection operations.
It is particularly suitable for the pharmaceutical industry.

All operations are conducted without exposing operators to the products and without contaminating the product itself, ensuring safety and quality at the same time.
We provide special solutions to keep the process fully contained also during the product filling and discharge phases.


Features and options

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  • Total volume up to 3.500 L
  • Design pressure: – 1 barg to atm
  • Design temperature: – 25°C to + 200°C

Horizontal axis cylindrical body

Two side flat bottom

  • One welded
  • One movable, secured with:
    • Tie rods
    • C-clamps
    • Swing bolts
    • Super clamp
    • Hydraulic bayonet

Side entry heated paddle type agitator

Double mechanical seal

  • Flushed
  • Gas lift off

Lip seal

Top mounted dust filter

  • Textile synthetic dust bags
  • Metal multilayer cartridges

Bottom product discharge valve

  • Actuated ball valve
  • Actuated segmented ball valve

Cleaning-in-place (CIP) system
The following options are used to wash the internal surfaces in contact with the product:

  • Dust filter spray balls
  • Dust filter spray nozzles
  • Discharge valve spray nozzles

Welded waterproof insulation

Chemical and pharmaceutical versions

Material of contact (MOC) with the product

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

Other materials are available on request.


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Side mounted lump breaker

Pack-off isolator (up to OEB5)

Temperature control unit (TCU)

  • Steam or water 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 analysers on request
  • PLC automation systems


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Our dryers are effectively used in multiple applications across the following different industries:

  • Biochemicals
  • Crop protection
  • Flavours & fragrances
  • Food & beverage
  • Pharmaceutical
  • Polymers
  • Precious and technology metals
  • Waste recovery

Depending on the product and/or application, different kinds of agitators or dryer shapes can be designed and drying can also be combined with filtration in a single unit, for even higher efficiency and product containment, as ensured by our pressure filter dryers.

More about filter dryers

Dryers or 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 even for consolidated processes, we provide support to our customers with testing operations to study product behaviour, identify the ideal process parameters and support scale-up.

More about R&D

Want to know more about the paddle dryer - Steridry ES?

Contact us