Loss-in-weight feeders are a specialised weighing solution, suited to applications where it is necessary to quantify the weight lost during discharging of a weigh bin. That is, rather than measuring what goes in to the weigh bin, the loss-in-weigh feeder measures what comes out.
Loss-in-weight feeders are therefore used in applications where it is necessary to discharge a known amount of product into, say, a mixing bin. Rather than the full amount of product being discharged from the weigh bin, only the required amount is discharged.
Any product can be catered for. The only variables include the size of the weigh bin, and the method of discharge. The system, depicted below, shows a screw feed discharge method and has been used to process waste water sludge.
