These valve bag packers feature a vertically oriented impeller (horizontal axis) to move product from its infeed chute and fire it into the awaiting bag. This filling system is especially suited for building materials such a portland cement, mortars, grouts, stuccos, gypsum, lime, talc and clay. Technipes has improved on traditional impeller design for extended life and ease of maintenance. Controls feature VDF impeller drive as standard to ensure the best possible speed and accuracy as standard.