Application
Gravimetric dosing for packing lines
The problem
On a packing line, an over-dose is raw material given away with every unit sold, and an under-dose is a compliance problem. Both are invisible per batch and only become measurable at the end of the year.
Volumetric dosing makes this worse when the raw material varies: a density difference between lots translates directly into a quantity deviation, even though the machine is doing exactly what it was set to do.
What we deliver
Gravimetric dosing on load cells: mass is weighed, not volume, so a density variation between lots does not change the quantity dosed.
Two-stage dosing — high rate to approach the target, fine rate to land on it — with automatic correction for the material in flight at the moment of stopping.
A weighing report for every batch, with the recipe used, in the format your quality department already works in.
Interchangeable screws for materials with different flow behaviour dosed from the same installation, plus a hopper vibrator or agitator for powders that bridge.
Integration with the existing line automation.
Reference
For a customer in the chemical industry we built a line in which precision gravimetric dosing feeds the packing machine directly, as part of a closed flow from raw material intake to the packed product.
