Custom Steel Auger Screws
Helical Flights, Shafts and Machined Ends: Custom Auger Screws Made to Your Drawing
We manufacture custom steel auger screws, also called screw conveyor shafts and helical flight assemblies, for industrial machinery. Helical flights are cut, formed and welded onto a steel shaft or tube to your drawing, in diameters up to 880 mm and lengths up to 4 metres. Each auger is finished with sandblasting and paint, and the shaft ends can be machined to fit your bearings, couplings and drive.
One-off replacement augers, small batches and serial production, to your drawing, CAD file, sample part or sketch.
Custom Steel Auger Screws: Technical Overview
Made to your drawing, sample or sketch| Product | Custom welded steel auger screws (helical flight and shaft assemblies) for conveying, feeding, mixing and drilling machinery |
|---|---|
| Flight diameter | Up to 880 mm |
| Overall length | Up to 4 metres (4000 mm). Longer augers can be made in sections that couple together. |
| Construction | Helical flights formed from steel plate and welded to a steel shaft or tube. Continuous or sectional flights, with pitch and flight thickness to your drawing. |
| Material | Carbon steel, stainless steel on request. Wear-resistant plate on request for abrasive material. |
| Shaft ends | Plain, stub or flanged ends, with journals, keyways and splines machined to fit your bearings, couplings and gearbox. |
| Manufacturing | |
| Surface finish | Sandblasted and painted in the colour you specify. Galvanizing and other protective coatings on request. |
| Inspection | Visual and dimensional inspection of welds, straightness and overall length. Dye penetrant testing of welds on request. |
| Production | Replacement augers, prototypes, one-off units, small batches and serial production |
| Industries | |
| Input data | 2D technical drawings, DXF files, CAD data, a sketch with key dimensions, or a worn sample to copy |
| What we need to quote | Drawing or sketch, diameter, length, pitch, shaft details, material, quantity, finish, and delivery location |
Send us your drawing, sketch or sample and we'll come back with a quote.
Request a quoteCustom Steel Auger Screws, Built to Your Specification
An auger screw has one job: move material along a trough, tube or bore, or cut into the ground, under load, for thousands of hours. The helical flight has to keep its shape, the weld between flight and shaft has to hold, and the shaft has to run straight. At Nika Steelworks we manufacture custom steel auger screws and screw conveyor shafts for industrial machinery, in flight diameters up to 880 mm and lengths up to 4 metres, to your drawing, CAD file, sketch or sample part.How an Auger Screw Is Built
A steel auger screw is made of two main parts: the central shaft, which carries the torque, and the helical flight, which does the work. The shaft can be solid bar or heavy tube. The flight is cut from steel plate, formed into a helix to the required pitch, and welded to the shaft. Pitch, flight thickness, shaft diameter and the number of flights are chosen for your material and your duty, whether that is free-flowing grain, wet sludge, abrasive aggregate or drilling spoil.Sizes: Up to 880 mm Diameter, Up to 4 m Long
We make augers from small feeder screws up to large heavy-duty units with flights up to 880 mm in diameter and overall lengths up to 4 metres. For longer conveyors, augers can be made in sections with coupling ends so they join into one continuous line. Tell us the trough or tube size, the shaft diameter, the pitch and the length, and we will propose a construction. If you only have a worn auger, we can work from the sample and reproduce it.Shaft Ends and Machined Details
An auger is only as good as its connection to the drive. Shaft ends can be plain, stub or flanged, with journals for bearings, keyways, splines or drive tangs machined to your drawing on our CNC machines. Bearing seats and coupling fits are checked after welding so the auger turns true in your machine. Straightness and concentricity are important on longer shafts, so we check them before the part is painted.Material and Wear Protection
Carbon steel is our standard material for auger screws. Stainless steel is available on request for food, chemical or corrosive applications. Where the auger moves abrasive material such as sand, gravel, ash or scrap, wear-resistant plate can be specified for the flights. Tell us what the auger will carry and we will recommend a suitable steel.Industries and Applications for Auger Screws
Auger screws are used wherever bulk material has to be moved, mixed, metered or drilled:- Agriculture and feed: grain, feed and fertiliser conveyors, and unloading augers for silos and hoppers.
- Construction: concrete and mortar mixers, batching plants, and earth drilling and piling equipment.
- Mining and quarrying: feeders and conveyors for aggregates, ore and fines.
- Waste, scrap and recycling: screw conveyors and press feeders for shredded material and sludge.
- Food and grain handling: screw feeders and transfer conveyors for dry products.
- Water and wastewater: screw conveyors and dewatering equipment.
- Machine building: OEM augers for feeders, extruders, dosing units and processing lines.
How We Manufacture Steel Auger Screws
- Cutting. Flight blanks and shaft parts are cut by laser or plasma cutting, directly from your drawing or DXF file.
- Forming. The flight blanks are rolled and formed into a helix to the specified pitch (bending and rolling).
- Welding and assembly. Flights are fitted to the shaft and welded to the drawing (welding and fabrication).
- Machining. Shaft ends, journals, keyways and flanges are machined to fit (CNC machining).
- Sandblasting and painting. The finished auger is blasted and painted (sandblasting and paint).
- Inspection and dispatch. Dimensions, straightness and welds are checked before the auger is packed and shipped.
Surface Protection: Paint and Coating
After fabrication, the auger is sandblasted and given a protective paint finish in the colour you specify. Machined surfaces such as journals and bearing seats can be left bare and protected with oil for shipping. For wet, outdoor or corrosive duty, we can arrange galvanizing and other protective coatings.Made to Drawing, Sample or Sketch
We work from 2D technical drawings, DXF files and CAD data, from a simple sketch with the key dimensions, or from a worn part sent as a sample. We make replacement augers, prototypes, one-off units, small batches and serial production, and for repeat orders we keep the setup identical so every auger matches the last.Quality and Inspection
Each auger is checked visually and dimensionally against the drawing, including diameter, pitch, overall length, shaft straightness and weld quality. Dye penetrant testing of welds is available when your specification calls for it. If you need specific inspection documents, mention it when you request a quote and we will confirm what we can provide. You can read more about how we work on our quality page.What to Tell Us When You Ask for a Quote
- Flight (outer) diameter and overall length
- Shaft diameter or tube size, and shaft end details
- Pitch, flight thickness, and left or right hand
- What material the auger will move
- Steel grade, wear protection, and paint or coating
- Drawing, sketch or worn sample
- Quantity and delivery location