Industrial Screw Flighting Repair

A customer in the wastewater industry contracted Reinke & Schomann Inc. to repair a screw lift pump. This large part as highlighted below was reconstructed by first removing the fighting’s worn edge, then utilizing our certified welding capabilities to create a replacement bar edge with ASTM A-36 standard steel material. The tightest tolerances of 0.125” were held throughout, and flight width measurements were taken intermittently during the process to ensure proper measurements. We were able to maintain a true and straight outside diameter for this flighting. The part was finished with a paint coating.

Finished dimensions of the screw lift pump were 60” in diameter, 46’ in length, and 9,000 lbs. in weight. 2 lift pumps were overhauled after a turnaround time of 6 weeks, and shipped to the customer in Illinois. Reinke & Schomann has been providing recognized metal craftsmanship since 1929, specializing in metal fabrication, custom screw and ribbon conveyor flights, to conveyor assemblies. For more details about this screw flighting repair project, or our other large scale repair and forming capabilities, please see the table below or contact us directly.


Product Description
Repair of a screw lift pump used in the wastewater industry.
Project Scope
Removing the worn edge of the flighting, welding a replacement bar edge, and maintaining a true and straight outside diameter.
Capabilities Applied/Processes
Sand Blasting
Overall Part Dimensions
Diameter: 60″
Length: 46′
Weight: 9,000 lbs.
Tightest Tolerances
Material Finish
In process testing/inspection performed
Flight width measurements
Industry for Use Volume
Delivery/Turnaround Time
6 weeks
Standards Met
Customer Specifications, 2D CAD Drawing
Product Name
Screw Lift Pump