The “gross weight” weighing machines, used for low-medium production, dose the product directly into the bag. The weight is recorded by electronic load cells, usually connected to the filling spout.

They are characterised by the reduced amount of parts in contact with the product, allowing easy access for inspection and cleaning. As for the net weight weighing machines, different types of dosing systems can also be used for the gross weight weighing machines, depending on the products that are to be handled.

The use of gross weight weighing systems becomes necessary each time products with a high degree of fluidity must be packaged, which tend to absorb a lot of air during the dosing and filling phases.