Gravimetric batch systems GRAVI are sum-of-weight equipments employed to realize homogeneous mixtures of several components.

They are available in several configurations to achieve outputs from 20 to 1200 kg/h. Depending on the type of material to be dosed and the dosage percentage of each component, they can be supplied with dosage valves or with single screw dosage units.

They have been designed to provide precise and reliable dosage. The predisposition to a quick disassembly allows easy and fast cleaning.

Dosing screws are inclined for accurate material feed.

The mixer is spherical to avoid material stagnation and for certain types of applications (for instance film extrusion), it is positioned on load cells to calculate the output of the extruder.

Indicated outputs are based on tests with material in granule having BD 0,60 kg/dmc