Product Lines

Dissimilar Speed Double Concentric Auger Metering Mechanism - Models 105/140 Series

Models 105 and 140 Series Dry Solids Volumetric Feeders… with Acrison’s exclusive Dissimilar Speed, Double Concentric Auger Metering Mechanism


Model 105X Metering Mechanism

Acrison’s heavy duty Model 105 and 140 Series of Volumetric Feeders for dry solids feature a unique, dissimilar speed, double concentric auger metering mechanism designed to accurately and reliably meter a very wide variety of dry solid materials. The metering mechanism consists of a large 'conditioning auger' or Intromitter, concentrically mounted around a smaller, slower rotating 'metering auger', operating at dissimilar speeds in a fixed proportion to each other by a single variable speed gearmotor.


  • Unique Dissimilar Speed, Double Concentric Metering Mechanism – conditions material to a very consistent state while efficiently and reliably filling the metering auger from a full 360º
  • Common Drive Network – mechanically links the slower speed 'conditioning auger' with the metering auger via a single, variable speed AC or DC gearmotor.
  • All Steel Construction – provides long-term durability with minimal maintenance requirements
  • Wide Range of Model Sizes – for feed rates from 0.0012 to 3400 cubic feet per hour


  • All contact parts are 304 stainless steel including the feeder’s drive shafts and seal components
  • Variable speed AC or DC gearmotor drive with either a 30:1 or 50:1 speed range


  • Various materials of construction
  • Sanitary construction to comply with USDA and FDA codes and requirements
  • High temperature and pressure construction
  • Quick-disconnect construction for ease-of-cleanout
  • Various AC and DC variable speed motor controllers and control modes 
  • Available as the integral metering mechanisms for certain model Acrison Weight-loss Weigh Feeders