Dosing accuracy

Dosing accuracy describes the precision with which solids - especially bulk materials - are introduced into a process. It is crucial for product quality, process stability and traceability, both in batch processes and in continuously operating systems.

The faster dosing is required and the poorer the flow properties of the bulk material, the more difficult it is to weigh accurately. This is particularly difficult with moist, sticky or segregation-sensitive powders.

Dosing devices with weight reduction - usually screw feeders on load cells - are an established means of precise, continuous dosing. The decrease in weight of the powder is used as a measure of the actual mass flow.

In many cases, however, batch-based dosing is used, as this enables greater accuracy and traceability.

amixon® supplies continuous powder mixers that mix using the kettle flow method. They can be used for both batch and continuous mixing. These mixers produce extremely high mixing qualities and tolerate minor dosing fluctuations without significantly affecting the homogeneity of the end product. This means that even processes with slightly fluctuating mass flows can be operated reliably and gently.