The Tomoflow mass flowmeter can measure the mass flowrate of dry solids, thus avoiding the need to have loss-in-weight feeders or needing to interrupt the flow to weigh batches. This novel in-line, non-intrusive flowmeter with no moving parts effectively weighs the product as it flows past – without touching it! The results in the table are taken in a 120mm pipe with a vertical length of about 6m, typical of feed conditions in a production mill.