Custom helical auger flighting — carbon, AR400/AR500, or stainless — welded to your shaft spec. Replacement shafts, U-trough housings, replaceable liners, and hanger bearings to match. New screw conveyors from spec or refresh the worn parts of an existing one.
Screw conveyors handle the bulk material that belt conveyors can't — flour, powder, sticky aggregate, hot ash, slurry. They're simpler, dust-tight, and they move material vertically as well as horizontally. But the flighting is the wear part, and once it's worn down, your throughput drops and the trough takes the hit.
A&K cold-rolls helical flighting from carbon, AR-plate, or stainless. Welded to a custom shaft, paired with a U-trough housing and replaceable liners, with intermediate hangers and end-shaft bearing supports. Replace just the flighting and reuse the trough, or build a complete new screw conveyor from spec.

Cold-rolled from a single piece of plate into a continuous helix, then welded to the shaft. Smooth uninterrupted leading edge — best for clean material flow with minimal build-up. Up to ~24" OD per pitch in standard rolling capacity; in carbon, AR400/AR500, or 304/316 stainless.
Individual welded segments — each section laser- or plasma-cut from plate and welded together along the shaft. Right for diameters and material thicknesses that exceed helicoid rolling capacity, plus easier repair of worn sections without replacing the full auger.
Cut Flight (CF) for mixing; Cut & Folded Flight (CFF) for aggressive blending and aeration; Ribbon flight for sticky/wet material that would pack on full flights; Paddle flight for mixing and even feeding; Variable / tapered pitch for compaction or controlled discharge.
Solid auger shafts with stub-shaft ends, keyways, and bolt-pattern couplings machined to fit your drive and bearing housings. CEMA standard pipe-size shafts (2-7/16", 3", 3-7/16", 4") plus custom diameters. Replacement shafts for worn augers — keep the flighting, refresh the shaft.
U-trough screw conveyor housings in carbon or stainless. Variants: flared trough (more capacity), tubular (dust-tight high-pressure), jacketed (steam/cooling), drop-bottom (cleaning access), and rectangular (replaceable flat-pack liners). Top covers in flat, peaked, or domed profiles.
Intermediate hanger bearings — Style 216, 226, 326, 660, and 670 supports, with CEMA letter-code bushings: U (UHMW), NR (natural rubber), W (wood — yes, still spec'd), BR (bronze), B (Babbitt), H (hardened iron), S (stainless), and ceramic for severe abrasive service.
Heavy-gauge spiral flight running directly inside a UHMW or polymer trough liner — no center shaft, no intermediate hangers. The right call for stringy, fibrous, or wet sticky materials (biosolids, sludge, food waste, recyclable fiber) where a center shaft would clog.
For abrasive bulk service (sand, frac sand, ash, slag, taconite). Chrome carbide overlay (CCO / Chromeweld 600) as standard weld overlay; brazed tungsten-carbide tile or HVOF-applied carbide coating for the worst service; Stellite or Colmonoy hardfacing rods where higher temperatures or specific corrosive chemistry rule out CCO.

Two specs drive auger performance: the steel choice (drives wear life) and the pitch (drives material handling behavior — capacity, fill rate, controlled feed, mixing).
Send the worn auger, the screw conveyor model, or the bulk-material spec sheet. We confirm flight OD, pitch, shaft size, and trough geometry.
We recommend material per failure mode — abrasion, corrosion, food-contact. Fixed quote with real lead time.
Helical flighting cold-rolled to pitch, welded to shaft, end-shaft features machined. Optional hard-face overlay applied to flight edges.
Crated and shipped, or installed on-site during your scheduled outage by our service crew.
Yes — this is the most common ask. If the shaft is still straight and the bearing journals are intact, we cut off the worn flighting and weld new on. About 40-60% of the cost of replacing the whole auger.
Helicoid flighting is cold-rolled from a single piece of plate into a continuous helix and welded to the shaft — smooth, uninterrupted leading edge, best for clean material flow. The limit is rolling capacity: above about 24" OD or above heavier plate thicknesses, helicoid isn't practical. Sectional flighting is built from individual plate segments — each laser- or plasma-cut, formed, then welded to the shaft and to each adjacent segment. Both result in welded (not bolted) assemblies. Pick helicoid for clean service and smaller diameters; pick sectional for large diameters, thick plate, or hardfaced flight where individual segments can be replaced as they wear.
Yes — stainless 304 and 316 flighting and shafts, with welded joints cleaned and passivated to food-contact standards. Trough liners in FDA-grade UHMW. Tell us the product and the cleaning protocol (CIP, COP, dry sanitation) and we'll spec accordingly.
For highly abrasive material, yes — 3–10× life increase is typical. The leading edge of each flight is where 90% of the wear happens, so we concentrate the hardfacing there. Three common approaches: Chrome carbide overlay (CCO / Chromeweld 600) is the workhorse — a weld overlay rich in chromium carbides, deposited 1/8"–1/4" thick. Brazed tungsten-carbide tile for the worst single-point wear — small carbide blocks brazed onto the flight edge. HVOF (high-velocity oxy-fuel) tungsten-carbide coating for thinner, smoother coverage. Note: "tungsten-carbide overlay weld" isn't really a thing — tungsten carbide isn't weld-deposited the way chrome carbide is; it's brazed as tile or sprayed as HVOF coating. Trade-off across all three: cost vs life, and harder to re-flute when it does eventually wear.
Standard pitch (pitch = diameter) handles horizontal and inclines up to ~20°. From 20–45°, switch to short pitch (2/3 of diameter) to keep material from falling back between flights. Vertical screws (90°) use half pitch and run at much higher RPM than horizontal — material is held against the trough by centrifugal force, not flight angle. CEMA 350 has full capacity tables. Send us the elevation profile and material density and we'll match the pitch.
The CEMA letter codes (U, NR, W, BR, B, H, S, ceramic) are picked by material being conveyed and the environment. U (UHMW) is the workhorse for dry granular and most general service. NR (natural rubber) for moderate abrasion in moist conditions. BR (bronze) for high-temperature service where polymers would creep. H (hardened iron) for general industrial abrasion. B (Babbitt) for low-RPM heavy-duty. S (stainless) for food and chemical. Ceramic for the worst abrasive service (frac sand, ash, taconite). Style numbers (216, 226, 326, 660, 670) refer to the hanger body itself; we match yours from the worn sample.
Standard carbon-steel flighting: 2-3 weeks (material + rolling + welding). AR plate or stainless adds a few days for material sourcing. Hard-faced augers: 3-4 weeks. Call 904-388-7772 with your spec — we'll give you a real answer before you commit.
UHMW and AR-plate liners for the trough — pair with new flighting to refresh the wear surface end to end.
End-shaft and intermediate-hanger bearing housings — the bearing supports on every auger assembly.
Back to the full overview — idlers, pulleys, scrapers, sprockets, take-ups, and more.
Send us your details — drawings, dimensions, or just a description. We'll get back to you within 48 hours on most quotes. For faster response or lead time questions on jobs, just call.
We respond to most quote requests within 48 hours. For faster responses or lead time questions on specific jobs, call us directly at 904-388-7772.
Based in Jacksonville, FL — we ship finished parts and components throughout Florida, the Southeast, and beyond.
Reach us at 904-388-7772, Mon–Fri 7:00 AM – 3:30 PM (closed Sat–Sun).