A screw flight is the spiral or helical metal blade welded around a central pipe or shaft in a Screw Conveyor or auger to push, pull, or mix bulk materials.

Key Design Parameters

• Outer Diameter (OD): The total width of the screw helix, which determines the outer boundary inside a trough.

• Inner Diameter (ID): The size of the inner hole that fits snugly over the central shaft or pipe.

• Pitch: The axial distance from one flight crest to the next, equal to the travel distance of material per full rotation.

• Thickness: The gauge or width of the metal plate, chosen based on load and wear resistance.