Powder Feeder "U-Trough"

Problem: Conventional feeders cannot reliably meter difficult powders

It is difficult to achieve reliable feeding of powders such as Cabosil®, TiO2 and other sticky and cohesive powders with conventional feeders. These powders create problems such as flooding, or bridging above the feed screw and thus interrupting flow. They can also bind the screw flights and thus damage the equipment and halt production.

Normal adjustable operating range is a 20:1 turndown capability from maximum feed rate. Special ranges are available.

Solution: Patented system that assures reliable metering

The patented Thayer Scale "U-trough" hopper and feed section provides the first practical and economical means for metering difficult powders. The geometry of the trough and agitator effectively de-aerate and contain the powder on initial fill cycle to help prevent flooding. An independently driven agitator maintains optimum material conditioning while screw speed can vary to control flow rate. Material does not build up within the trough or feed tube, preventing binding or erratic feed. In conjunction with a THAYER^® Loss of Weight scale system, the Powder Feeder U-trough provides the most reliable and accurate feed system for difficult powders