Separating materials of similar grain size

Do your inputs have similar grain sizes and therefore cannot be separated with a sieve?

RITEC density tables can solve your problem.

Our density tables enable the precise separation of the heavy and light fractions of dry bulk materials.

This is achieved by a combination of several methods:

  • Vibration of an inclined grid
  • Creation of an upward air flow that fluidises light particles
  • Extraction of fibres and dust by a cyclone/filter

How does it work ?

It is the difference in density and surface area of the bulk materials that allows for highly efficient separation. The mixture to be treated is fed onto the grate and fluidised, the heavy elements rise and the light elements are discharged through the lower part of the machine.

Industrial efficiency first and foremost

The table is completely closed.

Separation is optimised and air and energy consumption is reduced to a minimum.

The motors are equipped with an electronically controlled damper.


The capacity is easy to adapt, the system is fully modular and very flexible. All operating parameters are adjustable when the system is in operation.

Maintenance is reduced to a minimum, the table is built to operate 24 hours a day.



The densimetric table is suitable for a wide range of applications in the separation of fractions, foreign bodies, impurities and other materials in the chemical, mineral and recycling industries.

Thus, our densimetric tables are used in processing lines for :

  • Quartz, limestone, feldspar, mica,
  • metal particles,
  • fertiliser granules
  • plastics