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Volumetric and gravimetric dosing screws

The manufacture of quality products requires even dosing within extremely narrow tolerances. Leave it to us to achieve this, even with materials with the most problematic bulk properties.

Free-flowing powders and granulates are dosed very precisely and purely volumetrically. The desired flow volume is set or changed by the screw speed. Gravimetrically controlled dosing is, however, essential for documenting dosing quantities.

Differentialdosierwaage für Kunststoffstabilistatoren
Differential dosing scale for plastic stabilisers

Product features

  • Dosing screw troughs designed for optimum flow
  • Dosing spirals and screws specifically adapted to the product
  • Separately driven loosening agitator to guarantee even fill level
  • Dosing capacity adaptation via frequency converter or servo-controlled drives
  • Gravimetrically controlled dosing for the following applications:
  • dosing of batches, discharge according to target specification, differential dosing according to fixed target specification, differential dosing to variable and continuous target specification
  • Control components with standard PLC components
  • Process adjustment or continuous controller adjustment
  • Complicated process control via several sequentially connected PID controllers
  • Continuous process documentation

Product advantages

  • Dosing screw troughs designed for optimum flow
  • Dosing spirals and screws specifically adapted to the product
  • Gravimetrically controlled dosing

Application areas

  • Dosing of materials with even the most problematic bulk properties
  • Batch dosing
  • Discharge to fixed target specification
  • Differential dosing to fixed, variable and continuous target specification