Factory Acceptance Checks for a Centrifugal Spray Dryer
Define pass or fail checks for a centrifugal spray dryer FAT around atomizer speed, inlet and outlet air temperature, and liquid feed, using catalog values only as reference points.
Before signing off a centrifugal spray dryer, decide how the factory acceptance test will prove the atomizer and air temperatures work together on your liquid. A practical approach is to agree a short run at a stated feed rate and record rotary atomizer speed, inlet air temperature, and outlet air temperature at the same time, rather than accepting a single spot reading.
Ask in the request for quotation how the supplier will demonstrate the atomizer reaching and holding speed across its range, and whether the test liquid resembles your product. Catalog reference values list inlet air temperature of 100–280 °C, outlet air temperature of 60–130 °C, and rotary atomizer speed of 18,000–24,000 rpm; treat these as reference ranges, not guarantees for a supplied model. For the acceptance test, define pass or fail as stable readings within agreed tolerances for an agreed duration, plus a check that the feed system and atomizer respond predictably when settings change. Ask what instrumentation is used and how readings are logged.
Before requesting a quote, confirm with the supplier which test liquid will be used, how atomizer speed and both air temperatures are measured and recorded, what tolerances and run duration define pass or fail, and which acceptance records will be provided.