Conventional bagging plants employ bagging scales with knife edge supported weigh beam systems. Accuracy of such system is about 250 g /50 kg bag. The modernization of these machines with load cell based system improves the accuracy of system to less than 30 g / 50 kg bag. Load cell outputs linear milli volt (mv) signals proportional to the applied load with accuracy better than 0.03%. The modernization can be carried out online with inhouse support. The article gives in detail the  modernization of existing bag filling systems inexpensively to realize yearly recurring savings.