What Is a Screw Conveyor?

Screw conveyors, also known as worm conveyors or spiral conveyors, transport material over a flat or inclined plane.

A screw conveyor moves a regulated amount of material from the inlet point to an outlet point. The Material at the inlet is regulated based on the size and horsepower of the conveyor.

Screw conveyors are evaluated based on screw diameter and machine capacity over time. One of their most important tasks is to break down the lumps into the material they are working with.

These conveyors carry a wide range of materials: from dry to wet, from small grains to rocks.

How Do Screw Conveyors Work?

Screw conveyors use flighting, or rotating spiral blades, to carry granular or liquid materials through a trough or tube.

This technology is based on the principle of the Archimedes screw, which has been used for water and other materials for over 2500 years.

Today, a wide range of industries, from agriculture to food processing, use screw conveyors.

Farmers use the modern screw auger with very few moving parts to transport grain to or from bins, grain baskets, or trucks, miners use screw conveyors to transport minerals from dig sites to storage silos for processing while chemical workers use screw conveyors to safely convey toxic substances from one application to another.

10 Advantages of Screw Conveyors

  • Adaptability
  • Efficient Mixer
  • Bi-Directional Flight: Right and Left
  • Easily Reversible
  • Handles High Temperatures
  • Moves Abrasive Materials
  • Flood Loaded to regulate feed downstream
  • Small to Large Lump Size
  • Completely Enclosed
  • Multiple Inlets or Discharges options
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