When the accuracy requested by your dosing application is not the key point, using volumetric feeders makes the solution more cost-effective.
Depending on the flowability of the product and the value of the Flow rate to ensure, the volumetric feeder can be a motorized discharge gate (MDG range), a belt extractor (VBE range) or a coupling of both pieces of equipment.
An interesting in-between solution is to use together with a volumetric device as an MDG slide gate and an I 410 controller which embedded DGC application software will of course not manage any weighing measurement but will allow to execute and memorize volumetric calibration curve.