Vibrating Nodal Membrane Feeder

Thayer Scale’s vibrating tray feeders operate over a very wide feed range (typically 50:1 or greater) and provide exceptionally uniform flow rate with most materials. Unlike standard metallic vibrating trays which encounter material adherence (e.g., TiO2) and buildup, our vibrating feeders promote continuous material flow.

Engineering a Solution to Surface Buildup

Drawing on their deep knowledge of material handling, Thayer Scale’s engineering team developed a solution that employs a mounting design with an elastomeric membrane. This membrane, coupled with the correct vibrating pan frequency, allows for metering of even the most difficult-to-feed materials.

Our patented nodal membrane produces transverse, multiple-node standing (vibration) waves in the elastomeric membrane. The waves shed adhering materials by magnifying the alternating tensile and compressive surface strains at the conveying surface. We have achieved feed rates of as low as two pounds/hour when handling cohesive powders.

Thayer Scale’s patented nodal membrane:

  • Produces transverse, multiple-node standing (vibration) waves
  • Sheds adhering materials by alternating tensile and compressive surface strains of elastomer insert
  • Cleans itself