MULTIBELT Multi-Idler Belt Weighers


  • - Continuous bulk solids measurement in belt  conveyor systems 
  • - Suitable for flow rates up to  20,000 t/hr 
  • - Accuracy up to ± 0.25 % 
  • - Also legal-for-trade version 
  • - Suitable for IEC belt widths



Multi-Idler Belt Weighers are used for continuous acquisition of flow rates and totalized amounts. They are especially designed for integration into continuously operating belt conveyors and enable accuracies of up to ± 0.25% to be achieved.

They can be employed for a whole variety of tasks:

  • - Throughput and consumption measurement in production plants
  • - Accountability of stored and retrieved amounts
  • - Load limit alarm
  • - Batching, in load-out stations
  • -  Legal-for-trade weighing
  • - Prefeeder control.

Their rugged design ensures ahigh degree of reliability and availability. Our product range is as varied as the demands of our customers. For SingleIdler Belt Weighers, see separate Spec Sheet.



The standard multi-idler belt weigher comprises:

  • - Weighing platform for accommodating user´s idler sets
  • - Overload-protected load cell(s)with high degree of protection
  • - Cable junction box forconnection of sensors, and
  • - All fixing elements required for mounting.

For speed measurement, various speed transducers e.g. friction wheel tachometers, are available as options.







Operating Principal

Belt Weighers are used to acquire continuous material flows of varying amounts.

Load cells acquire the weight of load on particular belt sections.The longer the belt section is, the less the measuring result is affected by external influences. In addition to belt load acquired by load cells, belt speed is measured by a speed transducer. The product of these two variables is the current flow rate. Integration of flow rate determines the totalized amount of material.



Specified accuracies refer either to nominal (maximum) flow rate or to the corresponding actual flow rate in the range of 20 to 100 %.

The accuracy specified for the 2BMP/BMC types refers to corresponding actual flow rate in the range of 30 to 100 %. Specified accuracies assume that the variant is installed in a suitable belt conveyor and that the measuring station
is installed and calibrated in accordance with our installation and calibration instructions.

For optimum planning-in of your belt weigher(s), see Spec Sheet F9151e ‘Recommendations for the Installation Planning of Belt Weighers’.


Special Requirements

Should you have specialrequirements, e.g.

  • - Legal-for-trade variant
  • - Belt speed out of specified range
  • - Meter for varying belt angle
  • - Prefeeder control
  • - Special belt widths
  • - Special belt conveyors,

please let us know.


Ordering Data

For us to be able to handle your order smoothly and quickly, please let us have the data below in addition to the ordering number:

  • - „ Belt width …………[mm]
  • - Flow rate …………[t/h]
  • - Belt rise …………[°]
  • - Belt speed …………[m/s]
  • - Accuracy …………[%]
  • - Nominal flow rate ( )
  • - Actual flow rate ( )


Multi-Idler Belt Weigher Variants

BMP 500 – 2000
Belt weigher with weighing platform, IEC belt widths from 500 to 2000 mm
2BMP 500 – 1400
Belt weigher with weighing platform, IEC belt widths from 500 to 1400 mm
BMC 500 – 2000
Belt weigher with weighing platform, IEC belt widths from 500 to 2000 mm



FGA 24 A
Speed measurement system, Namur switch with perforated disc
Speed measurement system; friction wheel with rockerand support
Speed measurement system;  friction wheel with rockerand support in stainless steel design
FGA 53 K
Speed measurement system for belt speeds from 3.5 m/s onward, with coupling for connection to shaft end