Screw Feeders are used to control the flow rate of a product from a bin or other source which choke loads (completely fills) the feeder inlet. Advantages of Screw Feeders:
§Completely enclosed, dust tight compact
§Multiple inlets and outlets including open end outlet.
§Continuous open bottom for filling trucks, rail cars, dumpsters or open piles.
§Reversible or can convey two directions simultaneously by using right hand and left hand flights
§Can convey at any angle from horizontal to vertical.
§Can be a feeder and a conveyor in one unit.
§Tubular feeder can be used as a vapor/heat lock by loading 100% full.
§Can be driven at either end.
Mechanical Conveying 
