Pneumatics - Solid Transport and Separator Types

Separator types used in pneumatic solids transport systems - and their minimum suitable particle size

In a pneumatic transport system, solids as dust, flour, sugar, sand and many other products, are transported in high speed air flows.

The table below can be used as an indication of minimum particle sizes recommended for the different types of separators.

Separator Principle	Minimum Particle Size (micron, 0.001 mm)
Gravity	200
Inertial	50-150
Centrifugal, large diameter cyclone	40-60
Centrifugal, small diameter cyclone	20-30
Fan type	15-30
Filter	0.5
Scrubber	0.5-2,0
Electrical	0.001-1.0