To fulfill the demands of domestic grain and feed industry for sack packaging of 50kg bags,an automatic baggerwith twin weighing system has been developed with capacities of 900 bags/h .And this bagger has been invented to increase thepacking speed and automation level.Results showed that 900 bags/h of capacity and ±0.2%of accuracy was reached by usingthe overall unit.Compared with the single weighing system,a 28%-raise was found in the packing seed.Besides,stabilityand reliability were also ...