In industrial processes, as soon as the level of accuracy becomes lower than +/- 1 % and down to 0.25%, only a gravimetric feeder can match your expectations. Regular feeders are based on strain gauges load cells in order to offer the most cost-effective solution.
In blending application, the achievable accuracy with volumetric feeders is not easy to estimate: to help with this situation, PM range integrates an original model of volumetric belt extractor (VBE) which can be twisted in a glance into a weighing extractor (WBE) by the simple addition of an external weighing frame.