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In-line fill Aerators

The ability to accurately fill and distribute a uniform density of aerated lump free sand onto the pattern in all molding processes is essential to superior mold quality. Today's molding technology, and mold casting tolerances make it imperative to produce molds with uniform mold hardness, superior mold strength, and exacting pattern prints. The cost to process sand for molding is a critical factor in the cost per ton equation. Empire Systems' In-line fill Aerator improves the foundries ability to consistently produce quality and accurate cast products and ultimately improving a facilities bottom line.

Benefits provided by the ESI Aerator System:
  • Aeration of the sand at the point of fill to overcome pre-compaction effects in the sand transport system.
  • Break up of sand lumps to provide uniform density of the sand delivered to the flask thus decreasing soft areas or voids in the mold.
  • Capability to control fill rate via variation in speed and direction of rotation of the aerator shafts.
  • Independent control of speed and direction of each shaft to assist in the direction of sand into hard to fill areas on the pattern or in the flask.
  • Reduced sand consumption.
  • Improved molding characteristics and improved casting finish.
  • Faster flask filling cycle time resulting in decreased total molding cycle time.
  • Reduce burn in caused by loose sand and soft areas of the mold.
  • Improved mold uniformity and density thus increasing heat absorption rate from casting.
  • Higher sand flowability.
  • Less bond additions needed for same mold strength level.
  • Excess "free" moisture expelled during aeration.