By combining the measured conveyer load with a velocity signal, accurate information of the bulk flow can be achieved. Using Berthold’s bulk flow measuring systems, the mass flow of solids on conveyors can be measured continuously by means of contactless technology. The measurement performance remains very stable over years of operation. Thus, frequent recalibrations are not required.


Customer benefits

  • All-time control over current load and throughput due to real-time information
  • Ideal solution for process optimization
  • Without major modifications to the conveyor
  • Wear-resistant and maintenance-free as measurement is contactless




  • Not affected by varying belt tension, vibrations or bumps
  • No need for frequent recalibrations
  • No moving parts
  • Non-contacting and non-intrusive measurement
  • High accuracy with very good reproducibility
  • Excellent measurement stability over many years


Berthold's measurement solution

DuoSeries LB 472

The LB 472 bulk measurement system for the precise measurement of solid material mass flow on all types of conveyors.

Measurement solutions for the mining industry

Industry brochure

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