Spray Drying (logo filling)

Suspension solids concentration too high Decrease suspension solids concentration (if possible)

Atomization air pressure too high Decrease atomization air pressure

Drying air temperature too high Decrease drying air temperature

Spray guns too far from tablet bed Decrease gun-to-bed distance

Poor spray gun design or maintenance Replace or service gun

Turbulent airflow Minimize pan negative pressure

Aeration of coating suspension Optimize suspension preparation to avoid aeration

Process/Equipment