1. An empty bag manually put onto the filling spout and bag clamp, the filling cycle acts ;

2. When the weight close to the target value, the fast feeding screw will stop , meanwhile the slow feeding screw continues filling till it reached the target value , it stops , so that to keep the high packing accurate;

3. When filling complete, the operator is alerted and the bag was detached from the bag clamp and filling spout;

4. Filled bag was transported to next position to sewing or sealing .