Model 820 GWC II Impeller Packer 

The 820 GWC II impeller packer is extremely accurate and very productive. Field tests results have surpassed a weighing accuracy of +/- 1 ounce at 2 stigma with some products. It is ideal for handling finely divided fluidizable inorganic solids. The design and high quality components ensure reliable, continuous production.


  • Strain gauge load cell and amplifier
  • Air operated, bulk and dribble pinch tube cut-off & bag clamp
  • Air filter and pressure regulator
  • Filling tube swirl air-blast clean-out, inflatable bag sealer & bag inflating circuit
  • Braided rope packed shaft seals
  • 4" OD dust collection duct
  • Manifold pneumatic controls & exhaust silencers
  • High pressure fluidizing air bleed to nozzle & housing
  • Properly sized filling components and appropriate adjustable speed belt/sheave assembly
  • Bag chair post for up to 34" long bags
  • 7 1/2 HP 230/460 vac, 3PH, 60 Hz motor, 1760 rpm
  • Patented flexure weigh system and bag chair post for up to 34" long bags
  • GWC II (Graphic Weight Controller)
  • 166 Mhz Pentium computer with power supply
  • VGA Color video display
  • Dust light enclosures
  • Communications and I/O control computer & I/O modules
  • Rollout chassis on heavy-duty ball bearing slides

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