Weight loss type feeding machine is automatic production equipment intelligent computer, electronic and mechanical technology development. The biggest feature is that after the material is sent out, the real weight loss rate is measured, and it is compared with the weight loss rate (set value) required.. Its system using inverter or servo motor, using weight feedback speed control, through the screw (pump), on a variety of materials to achieve uniformly accurate feeding.

　　By hopper, feeder (single and double screw feeder), the weighing system and the regulator type feeding machine in weightless, in operation, hopper, a material and a feeder common continuously were weighed.