Measuring the mass flow of wood chips or bark

The main advantage of Berthold's bulk flow meter when compared to conventional weighing systems, is that it does not need to be recalibrated, and provides reliable results over many years of operation. The system can be installed on all conveyor types, e.g. belt conveyors, drag chain conveyors, and screw conveyors. Adding a meter onto existing boiler feeding lines is very feasible.

Graphic radiometric screw conveyor

Typical measurement arrangement on a screw conveyor.

Graphic radiometric belt weigher to measure the flow of recycled pape

Radiometric belt weigher measures the mass flow without contact. The results are stable over many years and frequent recalibrations are not necessary.

Customer benefits

  • Online, real-time process information
  • Optimised boiler operation
  • Ideal balancing of boiler feedstock
  • Reliable from start to finish


  • Contactless measurement of wood chips or bark
  • High repeatability, no need for recalibrations
  • Virtually no operational expenses
  • Excellent measurement stability
  • Not affected by varying belt tension, vibrations, or bumps 


Bulk flow and throughput measurement Product brochure

English | PDF | 1.8 MB

Solutions for pulp and paper production Industry brochure

English | PDF | 2.1 MB

Berthold's Measurement Solutions

DuoSeries LB 472

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