Screw Weigh Feeders utilize a specially designed screw conveyor as the weighing/conveying means that not only provides total product confinement, but also, eliminates the typical problematic environmental difficulties usually experienced with the common variety of weigh belt type weigh feeders.
The Weigh Screw Feeder is rugged, mechanically simple, has only several moving parts and requires an absolute minimal amount of maintenance. The weigh screw and its housing are constructed of all MS / SS; continuously seal welded and ground smooth. The auger is then polished, plated and polished again to achieve an extremely hard and smooth surface capable of resisting adhesion and wear.
The entire weigh auger assembly is mounted on a scale that senses only the net weight of product being conveyed within the weigh screw. Or sometimes a load cell and pivot arrangement is made. This all depends on accuracy requirement.