Bulk flow measurement on the conveyor belt

The Berthold LB 472 bulk measurement system provides an accurate, non-contacting, and reliable measurement solution for optimising the milling process and reducing costs. Thanks to the measurement principle and the patented stabilisation methods, the measurements remain completely unaffected by external influences such as dust, vibrations, fluctuations in belt tension, temperature, aging, or external radiation.

Measuring principle & function

Radiometric bulk flow measurement with detectors

  • Reliable measurement of bulk materials, throughput, and mass flow on all conveyor systems, even where conventional methods cannot be used
  • Increasing efficiency of the milling process, thereby saving costs and minimising waste
  • Wide application range due to typical measuring range between 100 kg/h and 1000 t/h
  • Reliable adherence to delivery/production quantities
  • No drift, recalibration or cleaning necessary
  • Non contacting and maintenance free

Microwave moisture measurement with horn antennas

  • Known moisture content when tendering / loading bulk material ensures consistently high quality of the products
  • Multifrequency technology for dynamic plausibility control of the raw signal
  • Easy installation, on existing conveyor systems
  • Wear-resistant and maintenance-free due to contactless measurement
  • Reliable long-term measurement without recalibration

Possible applications

  • Flow rate measurement of whole corn, grain or sugar beets by entering the grinding process, allowing operators to adjust the speed and feed rate for optimal efficiency. It also provides real time production numbers for plant managers reports.
  • Flow rate measurement of whole corn, grain or sugar beets to accurately measure the flow rate of ground corn going into the fermentation process, helping optimize the milling process, ensuring accurate proportioning of ingredients, and ultimately reducing costs.
  • Measurement of dried distillers‘ grains (DDG) to measure the flow rate and mass
    produced during ethanol production.
  • Online moisture measurement of ground product or DDG


Berthold's Measurement Solution

DuoSeries LB 472

Bulk measurement system for the precise mass flow determination of solid matter on all kinds of conveyors.

MicroPolar LB 567/568

Mikrowellen Feuchtemessung für alle Schüttgüter einsetzbar – berührungslos, zuverlässig und wartungsfrei