The valve bag fillers are just machines that fill the product into the bag. In this case the product has been already pre-weight by a net weigher (weigh hopper) above the filler. Technipes manufactures a wide range of valve fillers according to the specific product to pack: - auger filler This versatile system is ideal for products with dusty or floury characteristics, yet is also well suited to granular or pelletized products. Products such as flours, sands, feeds, chemicals, may all be packed with this machine.  - combined impeller+auger filler The system is specifically designed to package floury type products such as flour, yeast, and gluten. - belt filler Equipped with a filling system of the lot powered belt, this, through a calibrated channel, directs and accelerates granular, free-flowing, without altering the particle size of the material. It is suitable for products such as sugar, rice, wheat and cereals in general, plastic granules, granular fertilizers, etc ... - gravity filler The system is designed to work exclusively with granular, free flowing products, but is more advanced than the standard ITG model’s system in that product is accelerated to a significantly higher velocity.The machine is ideal for products such as granular fertilizers, sugar, plastics, seeds, pellets, and sands