Shafted Screw Conveyors
Shafted screw conveyors are used in thousands of industrial applications every day for efficiently conveying a variety of bulk materials. A shafted screw conveyor’s main function is to transfer bulk materials from one process to another. Shafted screw conveyors are very cost-effective and require minimal maintenance to operate.
Engineering Guide Industry Solutions Screw Conveyor Calculator
Advantages of Using Shafted Screw Conveyors
- Ideal for handling dry to semi-fluid materials – free-flowing to sluggish
- Cost-effective when compared to other conveying devices such as belt, pneumatic or aero-mechanical conveyors
- Efficiently distributes bulk materials to various locations using multiple inlet and discharge points
- Totally enclosed for corrosive or hazardous requirements
KWS Shafted Screw Conveyors are available in many configurations. Shafted Screw Conveyors are designed based on industry standards and are modular in construction providing flexibility for a variety of applications.
Choosing a Shafted Screw Conveyor Component Guide
Available Features / Options
- Custom Engineered For Your Specific Application
- Wide Range Of Construction Materials
– Carbon Steel, Stainless Steel and Abrasion Resistant Alloys - Flight Configurations Available For Mixing and Chopping
- Designs Available For Cooling and Heating Products Utilizing Jacketed Housings
Ask the Experts
- Replacement Screws for WAM Screw Conveyors
- Paddle Screws for Mixing Bulk Materials
- Analyzing Different Types of Screw Conveyor Failures
- How to Install a Hanger in a Screw Conveyor
- Loading Rail Cars Far Away From Storage Silos
- Using a Screw Conveyor with a Fluidizable Material
- Screw Failures
- Seals on Screw Conveyor Covers
- Stellite Sleeved Coupling Shafts and Hanger Bearings
- Waste Pack Seals
- Processing Oil Sands / Tar Sands and Reducing Moisture
- Mechanically Removing Small Plastic Particles Out Of Cooling Tanks
- Product Sticking to Conveying Augers Over Time
- Cooling Calcite Powder with a Screw Conveyor
- Cooling Hot Bulk Materials Using Screw Conveyors
- Designing Inclined Screw Conveyors for Upset Conditions
- Designing an Unloading System Using Screw Feeders and Screw Conveyors
- Fatigue Failures in Screw Conveyors
- Helicoid and Sectional Flighting for Screw Conveyors
- Loading Dumpsters or Trucks
- Material Characteristic Tables in the CEMA 350 Book
- Mechanical Conveyor for Hot, Friable Material
Features and Benefits of Screw Conveyors
- Excluder Rings Stop Bulk Material Leakage
- Batten Bar Hold Downs
- Plug Detectors
- Safety Interlock Switches for Conveyors
- Whirligig Zero Speed Switch
- Shrink Fit Shafts
- Pedestal Trough Ends
- Speed Sensors and Zero Speed Switches
- Split Flanged Gland Seals
- Split Gland Seals
- Split Tubular Housing
- Straightening the Screw
- Stub End Shaft
- Tor-Ri-Flex Intermediate Bearing
- Torque Arm Trough End
- Bulkhead Trough Ends
- Using CEMA Standards for Conveyor Design and Construction
- Direct-Shaft Mount Drive Design
- Discharge Kicker Paddles
- Environmental Shafted Screw Conveyors
- Flanged Gland Seals
- Hard Surfacing
- Large Diameter Pipe
- Manually Actuated Rack and Pinion Slide Gate
Resources for Screw Conveyors
Filter Resources
Dust Collector Screw Conveyors to Convey Lime Kiln Dust for Graymont in Superior, WI
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The new screw conveyors bolted directly to dust collector hopper discharge flanges and collected fine…
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KWS delivered and installed the new screw conveyors 2 days ahead of schedule, saving at least $60,000 in…
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Georgia Pacific needed a unique replacement trough section that was leaking sawdust . Within 3 days, KWS…
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The new KWS screw was redesigned with bolt pads, schedule 80 pipe and thick flighting for reinforcing…
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KWS immediately visited the plant to evaluate Sims. A total of 10 screw conveyors needed replacement with…
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Made-to-Order Solution
The training covered screw conveyor components and assemblies and solutions to major maintenance issues…
Read MoreKWS Saves Plastic Bottle Recycling Plant Over $3,000,000 in Potential Lost Production
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KWS designed, manufactured and delivered 5 screw conveyors in 13 working days to meet the demands of the…
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Made-to-Order Solution
KWS manufactured the new drive shaft using high-strength material to prevent a future failure and…
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Through a strategic partnership with the distributor and KWS, Sibelco received higher quality replacement…
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Made-to-Order Solution
KWS designs and manufactures equipment to the highest quality standards. The NOV Rolligon screws operate…
Read MoreKWS Provides Domestic Source for Replacement Screws
Made-to-Order Solution
The existing screws utilized weld-in drive and tail shafts with multiple turndowns and threaded sections.…
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Made-to-Order Solution
When a potential repair screw is received by KWS, it is first evaluated with ultrasonic testing to…
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Made-to-Order Solution
The livestock feed provider had a system of steam-jacketed screw conveyors stacked vertically and driven…
Read MoreExpedited Delivery Saves End User $50,000.00 in Downtime
Made-to-Order Solution
The new replacement screw was completely Made-to-Order and had both left and right hand flights with…
Read MoreRedesigned Screws Increase Uptime and Reduce Cost for Honeywell Specialty Materials
Made-to-Order Solution
A team from KWS and Motion Industries visited the Geismar facility and met with the Honeywell Plant…
Read MoreAluminum Bronze Hanger Bearings for Searles Valley Minerals
Made-to-Order Solution
KWS and Searles Valley Minerals researched different materials that would extend bearing life as well as…
Read MoreBroke Thickener Repulper Screw for Georgia Pacific Naheola Mill in Pennington, AL
Made-to-Order Solution
The pulp and paper applications typically require the utmost precision possible. Screw conveyors used in…
Read MoreSplit Bottom U-Troughs for Great River Energy in Underwood, ND
Made-to-Order Solution
The split-trough design increased up-time and productivity for GRE.
Read MoreExpedited Delivery of Screw Conveyors for Concorp in Kansas City, MO
Made-to-Order Solution
Concorp contacted KWS because they were looking for an experienced manufacturer to design and build screw…
Read MoreClose Tolerance Screws for Frac Sand Blender Trucks
Made-to-Order Solution
Frac sand and proppant are abrasive and will wear down the frac blender screws over time. In order to…
Read MoreSpecial Design Screws for Recycled Materials at CP Manufacturing in San Diego, CA
Made-to-Order Solution
KWS met the manufacturing requirements by designing special jigs and fixtures for locating the flanges in…
Read MoreExpedited Screw is Delivered Ahead of Schedule for Lhoist in Calera, AL
Made-to-Order Solution
KWS has streamlined every manufacturing procedure and now provides the shortest lead times in the screw…
Read MoreQuick Delivery Digester Feed Screw for WestRock Containerboard Plant in Hopewell, VA
Made-to-Order Solution
Typical lead time for a special screw of this type would be five weeks from another manufacturer. KWS was…
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Made-to-Order Solution
Engineers from KWS examined some of the failed shafts and coupling bolts. Conveying Trona is very…
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Based on material testing and new calculations, KWS designed the new replacement screw with 3/8-inch…
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Made-to-Order Solution
KWS researched and chose the most abrasion and corrosion resistant ceramic liner material for the…
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Problem Solver
KWS designed a mixing screw conveyor over 28-feet long where no internal bearings were allowed due to…
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KWS screw feeders metered the bulk materials from the individual hoppers to transfer screw conveyors and…
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Read MoreSpecial Screw Conveyor with Ethanol Spray System for Conveying Hemp
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To get the ethanol to evenly cover the whole conveyor, KWS designed a spray system to resist ethanol…
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The KWS grit screws operate in grit tanks about 5-feet deep. The shaftless screenings conveyor troughs…
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KWS designed screw feeders, conveyors and hoppers to meter and convey a wide variety of bulk materials of…
Read MoreFood Grade Screw Conveyors to Distribute Ingredients for Bread Making Process
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The conveyors were constructed from 304 stainless steel and polished to 150-grit finish on all surfaces…
Read MoreSubmerged Grit Screw and Ceramic-Lined Grit Classifier for the East Stroudsburg, PA WWTP
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KWS and the local rep helped the consulting engineer determine a better design that utilized a submerged…
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KWS provided a unique design for the growing pyrolysis industry that met the tight space constraints of…
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The new KWS screw conveyor was very cost-effective and required minimal maintenance - designed for upset…
Read MoreShafted Biosolids Load-Out System for Ewing-Lawrence Sewage Authority in Lawrenceville, NJ
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The new KWS Environmental biosolids load-out system utilized shafted screw conveyors. Shafted screw…
Read MoreScrew Conveyor Solves Housekeeping Issues for Chromium Production Facility in Castle Hayne, NC
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Chromium paste is very abrasive and the new KWS screw conveyor was designed for the application.…
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KWS Environmental worked very closely with Carollo Engineers and local operators over several years to…
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The KWS sales and engineering teams determined the ideal inclined conveying solution that would satisfy…
Read MoreScrew Conveyors for Conveying Offal at Butterball Turkey Processing Plant in Mount Olive, NC
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The existing screw conveyors in the offal conveying system were worn out and had multiple patches on the…
Read MoreScrew Conveyor to Convey Recycled Wire Waste at Encore Wire in McKinney, TX
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An engineering team from KWS traveled to Encore Wire to gather critical dimensional information from the…
Read MoreScrew Conveyor for Conveying Gelatin Powder for Gelita USA in Calumet City, IL
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KWS professionals collaborated with engineers at Gelita to ensure the ideal solution was being offered to…
Read MoreSpecial Cantilevered Screw Conveyor for Columbia Pacific Bio-Refinery in Clatskanie, OR
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Columbia Pacific Bio-Refinery needed a very special screw conveyor for loading shipping containers. The…
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KWS designed a split, two-piece drive trough end that can be removed to allow access for screw removal…
Read MoreScrew Conveyor for Hog Fuel at Boise Cascade Plywood Mill in Moncure, NC
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Boise Cascade asked engineers from KWS to visit the mill to help solve their problems with the inclined…
Read MoreDust Collector Screw Conveyor for Calgon Carbon in Bay St. Louis, MS
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Every aspect of the new KWS baghouse screw conveyor was designed to minimize maintenance costs while…
Read MoreMetering and Conveying Shredded Fiberglass at CTA Acoustics in Corbin, KY
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KWS engineers and local field representatives worked side by side with CTA Acoustics to develop the ideal…
Read MoreScrew Conveyors to Convey Sawdust at Kingsford Charcoal in Summer Shade, KY
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After reviewing the application, KWS recommended using shafted screws that are close coupled and clocked…
Read MoreGrit Tank Screw for Abington Waste Water Treatment Plant in Abington, PA
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KWS Environmental provided abrasion resistant (AR235) screws capable of long term submersion in a…
Read MoreTandem Screw Conveyors for Conveying Wood Chips and Bark at Biewer Sawmill in Prentice, WI
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Sales and engineering personnel from KWS met with the operations and maintenance staff at Biewer to…
Read MoreHeavy Duty Screw Conveyor for Conveying Clinker Cooler Dust at Holcim Cement, Three Forks, MT
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Designing and manufacturing a screw conveyor to span 30-feet without an internal bearing requires…
Read MoreInclined Screw Conveyor Simplifies Process Layout at Shaw Industries in Dalton, GA
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By visiting the site and discussing the various possibilities with the Shaw management group, KWS…
Read MoreHeavy Duty Screw Conveyors for Stillwater Mining in Columbus, MT
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KWS engineers visited the plant to fully understand operating conditions and offer long-term solutions…
Read MoreInsulated Screw Conveyors for Conveying Sodium Bentonite at Wyo-Ben in Billings, MT
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KWS provided screw conveyors with special insulated troughs and covers. The insulation was protected by…
Read MoreSolving Problems with Inclined Screw Conveyors at Johnson Controls in Florence, SC
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Two engineers from KWS visited the facility to review the application and discuss the problems with JCI…
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KWS designed the new replacement screw conveyor with 1/4-inch thick abrasion resistant (AR235) flights…
Read MoreFood Grade Screw Conveyor for Beef Processing Plant in Central Michigan
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Screw conveyors designed to convey ground beef that is intended for human consumption, require special…
Read MoreScrew Conveyor for Conveying Pork By-Products at John Morrell & Company in Sioux Falls, SD
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The screw conveyor to be replaced was 90 feet long and there were problems with insufficient torque as…
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KWS redesigned the new screw conveyor using abrasion resistant materials for the screw flights and trough…
Read MoreInclined Screw Conveyor for Conveying Wood Ash at West Fraser Lumber Mill in Leola, AR
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An engineer from KWS visited the facility and met with the Boiler Room Superintendent to determine the…
Read MoreInclined Screw Conveyor System for Signode Plastic Recycling Plant in Florence, KY
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After careful review of the restrictions and requirements, KWS recommended a piggyback design using two…
Read MoreBiosolids Load Out System for Chelford City Municipal Utility District in Houston, TX
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KWS Environmental designed, manufactured, supplied and commissioned a biosolids load out system that…
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The KWS screw conveyor was supplied as dust-tight with fully enclosed cover and shaft seals to contain…
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KWS designed, manufactured, supplied and commissioned an integrated system which required expertise in…
Read MoreWeigh Belt Spillage Screw Conveyor for Fertilizer Additive
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Thayer Scale and KWS have had a long standing relationship and worked on many successful projects…
Read MoreBiosolids Load Out Screw Conveyor for Oakmont Water Authority in Allegheny County, PA
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KWS Environmental provided a reversible ribbon screw conveyor, rack and pinion slide gate and three…
Read MoreStainless Steel Screw Conveyor for Conveying Coarse Sugar at Ferrara Candy in Bellwood, IL
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The KWS screw conveyor was designed with the drive unit on the inlet end, locating the drive unit outside…
Read MoreAerated Grit Tank Conveyance Upgrade at Cox Creek Water Reclamation Facility in Curtis Bay, MD
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KWS Environmental provided a complete grit conveyance system including grit screws, structural supports,…
Read MoreScrew Conveyor Eliminates Dust Problem at Lehigh White Cement in Waco, Texas
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KWS designed the new screw conveyor with a special flared trough to fit the width of the belt feeder…
Read MoreLoadout System for Offal and Feathers at a Pilgrim’s Chicken Processing Plant in Lufkin,…
Problem Solver
KWS Design Engineers visited the Lufkin facility and met with the Pilgrimﾒs Plant Manager to identify…
Read MoreScrew Conveyor for Conveying Wet Sugarbeet Pulp at Amalgamated Sugar in Paul, ID
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KWS Engineers visited Amalgamated Sugar, which was experiencing fatigue failures of screw conveyors made…
Read MoreJacketed Screw Conveyors for Cooling Copper Oxide at Major Copper Producer in Montana
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KWS jacketed troughs are designed and manufactured in accordance with the ASME Boiler and Pressure Vessel…
Read MoreSpecial Stainless Steel Conveyor for Mixing and Conveying Dusting Agent for Plastic Colorant
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Coperion K-Tron and KWS have worked together on many successful projects. They knew they could count on…
Read MoreStainless Screw Conveyor for Transferring Sugar at Wyoming Sugar in Worland, WY
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The compact design allowed Wyoming Sugar maintenance personnel easy means of installation without…
Read MoreStore and Transport Residuals From Hamilton, ON Wastewater Facility
Problem Solver
KWS designed and manufactured an integrated design of all components and assemblies which required…
Read MoreTriple Mass-Flow Screw Feeders and Conveyors for Phosphate Ore
Problem Solver
KWS designed and manufactured triple mass-flow screw feeders to match the existing hopper at the plant.
Read MoreTubular Inclined Screw Conveyors Feeding Boilers for Lumber Mill Power Generation
Problem Solver
KWS designed an inclined screw conveyor system to move the waste wood product from the hopper to the…
Read MoreTwin Screw Conveyor for EPDM Rubber
Problem Solver
Twin screw conveyor for conveying EPDM (ethylene-propylene-diene terpolymers) rubber particles.
Read MoreScrew Conveyor Used to Pour Concrete for Bridge in New Orleans
Problem Solver
The KWS screw conveyor was mounted in a structural frame that was part of the concrete pouring, leveling…
Read MoreScrew Feeder and Transfer Screw Conveyor for High Temperature Cement Kiln Dust
Problem Solver
Screw Feeder and Transfer Screw Conveyor Incorporated into a High Temperature Cement Kiln Dust
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Problem Solver
KWS Environmental designed and manufactured both shaftless and shafted screw conveyors for all types of…
Read MoreShafted Live Bottoms and Transfer Screw Conveyors for Handling Biosolids for the City of San…
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KWS used proprietary design calculations and Autodesk 3D Inventor software to design the live bottoms,…
Read MoreShafted Screw Conveyor for Conveying Biosolids at Egan WRP (Chicago)
Problem Solver
KWS supplied a shafted screw conveyor with KWS Tor-Ri-Flex sealed intermediate bearing assemblies.
Read MoreShafted Screw Conveyors for Conveying Dried Sludge at Jones Island WWTP in Milwaukee, WI
Problem Solver
The KWS Environmental screw conveyors were designed with a number of special features to meet the unique…
Read MoreShafted Screw Conveyors for Transferring Biosolids for City of Holland, MI
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KWS Environmental designed the shafted screw conveyors to be reliable with minimal maintenance downtime…
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Engineers from Andritz and KWS worked together to design a cantilevered screw conveyor for the…
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Professional engineers at KWS designed a support structure that provided the needed lateral support for…
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KWS also provided all of the structural supports for the conveyor and feeder, inlet and discharge…
Read MoreMixing Abrasive Fly Ash and Water
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KWS provided a mill-duty pugmill as the solution. A pugmill is a twin counter-rotating paddle mixer that…
Read MoreQuintuple Baghouse Inlet Takeaway Screw Conveyor to Convey Diatomaceous Earth
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KWS designed and manufactured the screw conveyor based on the unique characteristics of the material.
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KWS was able to modify some of the existing equipment design specifications to provide a more efficient…
Read MoreReversible Shafted Screw Conveyor for Biosolids Handling at Terminal Island Waste Treatment…
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KWS exceeded the design and operating requirements of the specifications by providing a shafted screw…
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The equipment would need to be extremely heavy-duty for long life and of stainless steel construction.…
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KWS provided heavy-duty screw conveyors constructed from 304 stainless steel for corrosion resistance.
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A special screw conveyor for conveying, tumbling and classifying the components of waste incandescent and…
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Horizontal screw conveyor and vertical screw conveyor for collecting, transferring, and elevating a…
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KWS provided a horizontal screw feeder and vertical screw conveyor for elevating peanut shells back into…
Read MoreInclined Screw Conveyors & Truck Load-Out Conveyors to Convey Offal Meat & Feathers at…
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KWS designed two inclined screw conveyors to transfer the offal material up to two horizontal screw…
Read MoreJacketed Trough Screw Conveyor
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A special screw conveyor for conveying, tumbling and classifying the components of waste incandescent and…
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KWS engineers designed a system that could meter and convey the different capacities of raw and finished…
Read MoreFood Grade Screw Conveyor System for Cookie Toppings
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The engineers at Keebler and KWS developed an excellent solution for their snack production process.
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KWS engineers took into account the existing plant machinery and layout and the Customer's concerns,…
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KWS engineers analyzed the existing plant machinery and layout to fully understand the Customer's…
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KWS and RP Masiello worked together to develop a layout that seamlessly incorporated the rows of rabbit…
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KWS carefully studied the specifications and application to develop a long-term and cost-effective…
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KWS provided approval drawings within days of receiving an order by utilizing their extensive Autodesk…
Read MoreHeavy Duty Screw Conveyors for Conveying Calcinated Gypsum
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KWS designed and manufactured the screw conveyors to exceed the requirements of the project.
Read MoreHeavy Duty Screw Conveyors for Conveying Corn Stover for Biofuel Plant
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DuPont and KBR were seeking an experienced screw conveyor manufacturer to design and build multiple…
Read MoreHeavy-Duty Tubular Incline Screw Conveyor to Convey Extremely Abrasive Alumina for Major…
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DuPont and KBR were seeking an experienced screw conveyor manufacturer to design and build multiple…
Read MoreHigh Temperature Kiln Injection Screw Conveyor
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KWS worked closely with engineers at Alstom Power for over a year to design cantilevered screw conveyors…
Read MoreConveying Egg Shells at Egg Processing Facility
Problem Solver
The new KWS screw conveyor was designed to effectively quadruple the capacity of the original screw…
Read MoreConveying Size Reduced Rubber at Tire Recycling Facility
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KWS was able to perform calculations and redesign the inclined screw conveyor to eliminate all of the…
Read MoreConveying Wet Starch Cake with Ribbon Screw Conveyors
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The combined experience and knowledge of the National Starch and KWS engineering teams provided a…
Read MoreCustom-Engineered Bulk Material Handling System for Zein Corn Protein Plant
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BRPG contacted KWS after meeting with our local sales representative and requested an engineered solution…
Read MoreCustom Engineered Storage, Metering and Conveying System for Steamed Tobacco Stems
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KWS engineers designed a tapered trapezoidal storage bin with two lump-breakers to break up bales and…
Read MoreDesign-Build System for Feeding and Conveying Wood Chips for enviraPAC in Monticello, AR
Problem Solver
The KWS inclined screw feeders and conveyors were designed to operate 24 hours per day, 7 days per week…
Read MoreDesign-Build System Utilizing Live Bottom Screw Feeders, Vertical Screw Conveyor & Hoppers…
Problem Solver
KWS designed a special live bottom hopper with a unique bridge breaker and screw feeder to meter the raw…
Read MoreDewatered Sludge Handling, Storage and Truck Load Out System at Fred Hervey Water Reclamation…
Problem Solver
The KWS Environmental conveying system provided for El Paso Water Utilities had many features that offer…
Read MoreDumpsters with Leveling Screws for Acrylic Dust
Problem Solver
KWS based the leveling screw design around existing dumpsters.
Read MoreExpedited Delivery of Screw Conveyors for Conveying Perlite Fines
Problem Solver
KWS utilized their extensive inventory of stock screw conveyor components to provide the quickest…
Read MoreFlanged Tail Shaft Redesign for OCI Chemicals in Green River
Problem Solver
The new tail shaft was designed to bolt to the screw with a flanged disc eliminating the use of CEMA…
Read MoreBiomass Screw Conveyors and High Pressure, High Temperature Reactors
Problem Solver
The design difficulties were to maximize the residence time within the transfer/mixing device while…
Read MoreBiosolids Load-Out Facility for Kitchener, Ontario, Canada
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KWS provided fully redundant systems from the centrifuges to the truck loading bays with two distribution…
Read MoreBiosolids Loadout Screw Conveyor for Jessamine Creek WWTP, Nicholasville, KY
Problem Solver
KWS Environmental supplied a shafted screw conveyor made from heavy duty carbon steel construction.
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As part of the biosolids load out system, KWS Environmental provided an integral-leg ribbon shafted screw…
Read MoreBiosolids Load Out System for Glenmore WTP in Calgary, Canada
Problem Solver
KWS Environmental designed and engineered the complete system utilizing Inventor 3D modeling so that the…
Read MoreBiosolids Load Out System Utilizing Flex-Wall Belt Conveyor and Screw Conveyors for Bloomsburg…
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Engineers at KWS Environmental worked closely Gannett Fleming to design every element of the load out…
Read MoreBiosolids Storage and Load Out for Galt Waste Water Treatment Plant in the Region of Waterloo,…
Problem Solver
The KWS Environmental load out system was designed for simplicity and rapid load out of trucks.
Read MoreBiosolids Truck Loading System for Cedar Falls, IA WWTP
Problem Solver
KWS designed and manufactured a shafted screw conveyor and five electrically operated slide gates that…
Read MoreCeramic-Lined Screw Conveyors for Conveying Abrasive Coal
Problem Solver
Existing screw conveyors were showing signs of wear due to the abrasiveness of the coal. KWS proposed new…
Read MoreComplete Residuals Handling System for Stickney WWTP
Problem Solver
The application at Stickney WWTP required a unique layout in order to fit the new KWS residuals handling…
Read More
