... and powder 3.ISO9001 & 2008 Reliable screw feeder machine for continuously operated processesFB screw feeder machine is a kind of measuring equipment ... , coal, ports, ceramics, food, and other industries.The screw feeder has two types:single tube single layer and double tube ... parameters by hand.6. Gravimetric weighing combined with screw convey to realize continuous dynamic measuring.Features:1.Stable ...