Gruber Self-Metering Ground Hopper

The Self-Metering Ground Hopper combines a robust ground hopper containing combined with a sophisticated PLC control system that provides touch-screen control of a conveying and metering system to deliver bulk materials to any mixing vessel.

The Self-Metering Ground Hopper that can be calibrated and set to dispense specified amounts of filler in any desired mixing vessel. A touch screen interface allows the user to specify the desired amount of filler to be dispensed or use one of 4 preset amounts.

NOTE: Designed for use for material metering and/or dispensing applications, and are not used with Autocaster casting or Batchmaster batching machines.

Depending upon the user’s requirements, the Self-Metering Ground Hopper can work with either bulk bags (super sacks) or individual bags of filler that have been manually loaded. A Bulk Bag Suspender Frame or a Bulk Bag Gantry can be used to position bulk bags over the Ground Hopper. A Bulk Bag Conveyor (Pallet Conveyor) can be used to easily position pallets of filler under the hoist on Bulk Bag Gantry.


  • 4” tube and durable auger constructed from carbon steel, standard pitch (i.e. pitch = diameter)
  • Standard discharge heights of 10’ to 14’ (other heights available)
  • Sealed dust tight drive and idler bearings with transmission ratio of 20:1
  • Rugged 15 cu. ft. Bin with 12 gauge carbon steel construction
  • Includes screen for helping to prevent bag scraps and other debris from reaching auger
  • Drive mechanism located near the floor for easy maintenance
  • Heavy duty worm gear drive mechanism is sealed in a oil bath
  • Includes chain clamps for securing bulk bag hopper support
  • Dimensions of 57.5” x 42.5” x 45” (146 x 108 x114cm) (LWH) plus auger
  • 1 HP 120/230/460 volt 3-phase motor
  • Pneumatic vibrator for anti-bridging control
  • Minimum 10’ ceiling height required
  • 45 degree incline
  • 50 lb/min standard output rate for typical calcium carbonate blends ; optional up to 600 lb/minute
  • Volumetric metering with +/- 2% accuracy
  • Touch screen user interface
  • PLC controls, 4 presets, alarms
  • Anti bridging and motor sensors
  • Low level alarm

Order Information - Self-Metering Ground Hopper Systems

Self-Metering Ground Hopper - #163519
Mobile Self-Metering Ground Hopper - CALL!
Bulk Bag Suspender Frame - #150160
Bulk Bag Gantry, 4 leg, 10’ - #0831208
Electric Hoist (4000 lb/184kg capacity), 3-Phase - #0831850 (single-phase also available - CALL)
Trolley, 4000 lb (1814kg) capacity - #0831217
Bulk Bag Roller Conveyor, 10’ - #0831216
Bulk Bag Roller Conveyor, 20’
Metering Control Options
Self-Metering Ground Hopper - #CEHOPPER