The Model 0002 fluid bed system for R&D applications is now available with integrated ultrasonic spray technology for superior performance in fluid bed coating, granulation, drying, and spray drying.
Ultrasonic atomization creates a fine mist of extremely small droplets capable of coating small granules or even powders in a fluid bed process. Unique Spraying Systems Co. technology enables the ultrasonic nozzle to operate in the higher temperatures of a fluid bed system while conveying the coating material in an upward direction towards the fluidized product.
The ultrasonic system delivers consistently-sized droplets across a wide flow range from 500 uL/min to 10 mL/min. The lack of high pressure atomizing air eliminates disturbances to fluidization that can occur with air-atomized nozzles.
The numbers don’t lie. These are the hard-sought answers to equations for precision lances, capacious volume bowls, and even the very range of a droplet size.
Ultrasonic Fluid Bed Specifications
|Ultrasonic Air Atomizing Lance||0002|
|Nozzle Orifice Diameter||0.03" (0.762 mm)|
|Droplet Size Range:||10-90µm|
|Connections (shaping/cooling air inlets and exhaust)||1/8" NPTF|
|Hygienic Liquid Inlet Connection||1/2"|
|Lance||316SS with Titanium Ultrasonic Horn|
|Elastomers||Choice of FDA VITON or EPDM|
|Model 0002 Fluid Bed System||--|
|Ultrasonic Bowl Volume (L)||1/2|
|System Height (inches/mm)||72/1829|
|System Width (inches/mm)||32/813|
Fluid Air fluid bed systems are designed to maintain critical scale-up factors from one unit to the next. Starting with our Model 50 to our largest available units, each system operates with nearly identical bed depths, air velocities, and air ratios (quantity of air per cubic foot of product), greatly simplifying the scale up of product from one unit to the next.
The conical shape of the expansion chamber reduces the velocity of the air in the filter chamber by 50%. The reduction in velocity helps to keep the smaller or fine particles out of the upper filter region and below the spray nozzles when granulating. A secondary benefit is a reduction in the total height of the expansion chamber.