The screw conveyor is one of the oldest methods of conveying materials known to mankind, the original design dating back more than two thousand years. Since the screw conveyor came into general use a little over a century ago for moving grains, fine coal and other bulk material of the times, it has come to occupy a unique place in a growing area of material handling processing. Today, modern technology has made the screw conveyor one of the most efficient and economical methods of moving bulk material.

What are the advantages of a screw conveyor?

• It is compact and easily adapted to congested locations.
• It can be used to control the flow of material in processing operations which depend accurate batching.
• It is versatile and can be employed in horizontal, inclined and vertical installations
• It can be used as a mixer or agitator, to mix and blend dry or fluid ingredients, provide crystallization or coagulant action, or maintain solutions in suspension.
• It can be sealed to prevent the escape of dust or fumes from inside the conveyor or keep dust or moisture from entering the outside of the conveyor.
• It can be made out of a variety of materials to resist corrosion, abrasion, or heat depending upon the material being conveyed.
• It can be outfitted with multiple discharge points.

Many years of experience in the design and practical application of screw conveyors  has resulted in the refinement of conveyor design. This design procedure, outlined in the Engineering Section of this document, makes it possible to accurately calculate size, speed, and the required horse power with a minimum of mathematical calculations.