An effective screw feeder must have the inlet filled at all times. The design of the flight pitches under the inlet will control the product draw down in the inlet and subsequent product loading in the conveying portion of the housing after the inlet.

A screw conveyor is the most basic form of conveying, simply moving material from point “a” to point “b”. Screw conveyors commonly handle reasonably dry to sludge type materials. All screw conveyors require that the feed into the inlet be controlled.

A bucket elevator is a very economical way to elevate material, in both large and small quantities. There are several types and styles of bucket elevators. The selection of type and style depends on the material to be conveyed, its qualities and characteristics, the desired capacity and amount of lift.

A drag conveyor is a good way to move material in one direction when a change in elevation is desired. It can also be used as a metering device if the inlet of the drag has a strike off as the material leaves the inlet.

Belt Conveyor (next tab)