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.

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