The operation of common feeder technologies

Unlike the volumetric screw feeder, a continuous Loss In Weight Feeder is a gravimetric feeder that directly measures the material’s weight to achieve and maintain a predetermined feed rate that’s measured in units of weight per time.Before operation, an operator programs the controller to discharge material at a predetermined feed rate (or setpoint) measured in units of weight per time (such as lb/hr).

Feeders are typically engineered to address a specific material at a specific discharge rate.Changes in material, operating conditions (such as ambient or material temperatures), plant vibration levels, as well as changes in material characteristics, can all affect feeder performance.Choosing a feeder that can be easily reconfigured in your plant to handle new conditions can help you solve these problems.

For a complex feeder system—such as multiple Loss In Weight Feeders feeding powder and pellets into mixers or extruders—external influences such as vibration, platform stability, and upstream/downstream equipment connections can all affect a feeder’s performance.For a complex feeder system—such as multiple Loss In Weight Feeders feeding powder and pellets into mixers or extruders—external influences such as vibration, platform stability, and upstream/downstream equipment connections can all affect a feeder’s performance.