Klik hier voor de Nederlandse versie

Print this page (without menu)

Forward a link to this page in an email

Bulk solids   Mass flow   Core flow   Bridging   Lab equipment  

Mass flow: the whole contents of the silo is moving

Mass Flow

FIFO: first-in, first-out


  • first in - first out.
  • little segregation.
  • steady flow and a well controllable discharge.
  • no ageing or decay.
  • no contamination.
  • fit for HACCP.
  • possibility of "following" product batches.


  • For abrasive products: wear of the wall.
  • Risk of silo quaking.

When mass flow occurs, the whole contents of the silo is moving as soon as product is withdrawn from the silo. For more information on mass flow design see article silo design.

When mass flow does not occur, the flow type in the silo is called core flow , funnel flow or ratholing.


  BSE bulk solids engineering
Kogelerbos 10
NL-7543 GT   Enschede
tel. +31 53 434 45 66