Helicoid flighting is a continuous rolled helix formed from flat bar. The cross section of all helicoid flight tapers in thickness from wider on the ID to narrower on the OD due to the flow of steel in the manufacturing process. Helicoid flighting is one continuous length as opposed to sectional flight, which consists of individual turns or segments that need to be welded together.
Therefore, Helicoid flight lessens the amount of splices required in assembly and welding when compared to sectional flight. Due to Rodquin’s unique equipment, we are able to produce helicoid flight and complete screw products with more consistency, tighter tolerances and at a lower cost than other suppliers.
Sectional flights are individual turns, wraps, or segments of wraps formed into a helix. The cross section of sectional auger flight is the same from the OD to the ID. Sectional flighting is often used when the height, or web, of the flight is larger than what can be produced with flat bar in helicoid flight. Sectional flight can be produced to a wide range of sizes, the flight dimensions are generally limited by the formability of the base material, but Rodquin can work with you to overcome these limitations through the use of multi-piece sections.
Rodquin can provide sectional flight with integral spokes, saving our customers assembly time. We also manufacture sectional flight with bolt hole patterns for mounting wear shoes or knives, bolting flight segments to mounting points or attaching segments to each other. Rodquin regularly cuts and forms sectional flighting with slots, notches, saw teeth, tabs and ‘cut and fold’ configurations, or a combination of these features.