Preci-Tech Weighing Systems offers Automatic Bagging and Weighing cum Stitching Machine. Preci-Tech Weighing Systems is an ISO 9001-2000 certified company. The Automatic Bagging and Weighing cum Stitching Machine is a bagging and stitching system with slat conveyor that is designed to simplify bagging, weighing and stitching operations. These machines are custom made and come with portable stackers, bucket elevators, vibratory screws, magnetic separators, etc.