Loss-in-Weight Feeders

Loss-in-weight feeders are material dosing systems that can be used with a variety of products including dry, bulk materials, liquids and even poorly flowing materials. Loss-in-weight feeders consist of a hopper with a dosing unit—typically a screw or vibrating unit—placed on load cells monitoring the material output during dosing. The dosing-unit hopper can be refilled manually or automatically from a storage hopper without impacting the dosing rate or stopping production. Dosing is typically measured in kilograms per hour and a digital controller adjusts the speed of the dosing unit to match the setpoint, ensuring consistent product flow.