BÜCHI Labortechnik AG

- Model B-90 HP - Nano Spray Dryer



Gently processing of the smallest sample amounts into submicron particles with little loss are the key features characterizing the Nano Spray Dryer B-90 HP. The 2nd generation instrument offers enhanced productivity and a better handling. It enables applications in the pharmaceutical industry, in life- and material sciences – whenever small particles make the difference.


  • Controlled and safe production of small particles (0.2-5 µm)
  • Increase of surface contact area by reducing particle size
  • Preservation of molecular activity due to gentle process conditions


  • 2nd generation spray head for optimized productivity and handling  
  • Patented airflow system for gentle solvent evaporation and high recoveries
  • Auto-Stop mode avoids the machine to run empty


  • Process very small volumes (< 2 mL) of sample quickly
  • Low product loss due to efficient particle recovery
  • Easily accessible application database and support


Patented heater module

The Heater Module produce a laminar stream of drying gas and provides an even heat distribution.


User-friendly spray head

The spray head was designed to spray dry small samples (< 2 mL) and to be easy to assemble and to clean.


Efficient collecting electrode

The 17‘000 V tension applied to the collecting electrode allows the efficient recovery (up to 90%) of smallest particles.


Innovative nebulizers

Nebulizers in the sizes small, medium and large allow the finding of the perfect balance between small particles and high throughput (up to 200 mL/h).


Inert Loop B-295

Condenses organic solvents out of the stream of drying gas. For safe and clean handling of organic solvent based samples in closed loop.


Dehumidifier B-296 Nano

For the removal of humidity from the drying gas in open and closed loop mode.

  • Dimensions tall setup (WxHxD) : 580 x 1500 x 550 mm
  • Weight tall setup : 70 kg
  • Operating Voltage: 100-240 VAC ±10%
  • Frequency: 50/60 Hz
  • Power consumption: max. 1500 W
  • Max. temperature input: 120 °C
  • Heating control: Fuzzy logic, control accuracy ± 3°C
  • Spray gas: Compressed air or nitrogen / 200-800 l/h, 5-8 bar
  • Airflow: 80-160 L/min
  • Interface: USB II


Spray Drying & Encapsulation Pharmaceuticals

Active pharmaceutical ingredients, drug delivery, vaccines, inhalable drugs, taste masking.


Spray Drying & Encapsulation Food

Encapsulation of additives, controlled release, nutraceuticals, functional foods, flavors, vitamins, proteins, probiotic bacteria, juice concentrate, milk powder.


Spray Drying & Encapsulation Materials and Nano technology

Nanotechnology, catalysts, fuel cells, batteries, accumulators, ceramics, UV absorbers, pigments and coatings.


Spray Drying & Encapsulation Feed

Encapsulation of additives, flavors, vitamins, proteins, probiotic bacteria, controlled release.


Spray Drying & Encapsulation Others

Cell, bacteria and protein encapsulation, cell transplantation, biotransformation, cosmetics, fragrances, environmental applications.


Spray Drying & Encapsulation Academia

For a wide range of applications in academic education:
Full range of spray drying applications

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