• The assembly of the glass parts is amazingly fast, elegant and simple. The glass cylinder can be inserted with a single manual movement of a locking lever.
• The operating panel displays all the functions in a clear manner. In addition to the settings of the spray parameters, the input- and output temperatures are displayed. The integral nozzle-cleaning device permits automatic or manual cleaning at selected intervals, or allows the manual insertion of a needle through the nozzle to prevent blockages or to remedy them.
• Two different versions of the glass cylinders make it possible to optimize the yield depending on the process. The lateral outlet cylinder is particularly suitable for aqueous products which are difficult to dry, while the second type of cylinder with a vertical outlet geometry is especially useful for work involving organic solvents.
• Variable gas flow control for optimal operation:
  • The standard method of operation for the Mini Spray Dryer B-290 is in a suction mode. The reduced-pressure environment within the system prevents any possible contamination in the case of a leakage. The system can be very easily converted to operate under pressure which prevents the aspirator from being attacked by corrosive media. All parts that come into contact with the product are readily accessible for cleaning
  • The two-fluid nozzle is a superb illustration of what may be achieved by combination of novel design functionality and high precision manufacturing. A ruby with a highly precise aperture is set in the tip of the nozzle cap. This guarantees reproducible and trouble-free spraying over long periods. The nozzle may also be thermostatically controlled

Areas of application

• Spray drying from solutions
• Structure modifications
• Drying of suspensions
• Agglomeration
• Spray crystallization

• Power Rating: 2900 W
• Voltage: 200/230 V, 50–60 Hz
• Evaporative Capacity: 1.0 l/hr H2O, higher for organic solvents
• Air Flow: Max. 35 cu. m./giờ
• Max. Temperature Input: 220 °C
• Spray Gas: Compressed air or nitrogen, 200–1000 l/hr, 5–8 bar
• Possible particle diameter range: 1–25 μm
• Dimensions (L xWxH): 60 x 50 x 110 cm
• Weight: 48 kg

Optional accessories:

• Inert Loop B-295: Closed circulation for safe operation with solvents in association with the B-290 Advanced unit; comprises a cooling unit, pressure control and oxygen monitoring elements, communication cables to the B-290
• Dehumidifier B-296: The ideal instrument for inlet air conditioning, condensing of water in the closed loop or inlet air cooling for the spray chilling operation