Testing a Centrifugal Spray Dryer With Your Own Liquid Feed
Buyers should require a trial on their own liquid before accepting a centrifugal spray dryer, agreeing on feed preparation, atomizer speed, temperatures, and what counts as a successful dried product.
Before signing off on a centrifugal spray dryer, ask the supplier to dry a batch of your own liquid rather than a reference material. Your feed's solids content, viscosity, and tendency to settle will shape atomization and drying behavior in ways a demonstration with someone else's slurry cannot reveal.
For the request for quotation, specify the feed volume needed for a meaningful trial and how the liquid will be prepared and kept uniform. Ask which rotary atomizer speed within the 18,000–24,000 rpm reference range the supplier proposes for your material, and why. Request the inlet and outlet air temperature settings they would use, noting that the catalog reference values of 100–280 °C inlet and 60–130 °C outlet are ranges, not promises for your product. Agree in advance on acceptance criteria: moisture content, particle appearance, yield, and wall deposition. During the demonstration, watch whether the atomizer clogs, whether product sticks to the chamber, and whether the powder matches your target.
Before requesting a quote, confirm with the supplier what feed quantity and preparation they need, whether the trial uses the same atomizer and temperature controls as the offered unit, how samples will be tested, and what data from the trial will be documented.