We offer weight feeders machine. A loss-in-weight feeder is used to precisely dose a product into a process at a desired flow rate or in batches. the feeding device with a hopper containing the product to be fed is placed on a platform scale or suspended on load cells. the product is discharged from the hopper by the metering device and the resultant weight loss per unit of time is determined by the weighing and control system. This actual weight loss per unit time is compared to a desired weight loss per unit time.