Screw Feeders & Live Bottoms
Screw feeders and live bottoms are one of the most accurate and efficient methods of metering bulk materials. Many processes begin with bulk materials being discharged from hoppers, bins or silos. The inlet area is flood-loaded and designed to meter bulk materials at fixed or variable rates. With our extensive knowledge and experience, KWS will provide a system to meet all of your requirements.
Mass Flow Screw Feeders Industry SolutionsAdvantages of Using Screw Feeders & Live Bottoms
- Ideal for metering a wide variety of bulk materials – from sluggish to free-flowing
- Design flexibility – Can be a single or multiple-screw design depending on hopper design and required feedrate
- Can be designed with variable frequency drives to provide a wide range of feed rates to downstream processes
- Bulk materials are discharged in mass-flow or first-in, first-out with uniform flow – no bridging or rat-holing of bulk materials in hopper
KWS Screw Feeders and Live Bottoms are custom designed for your application. Bulk material characteristics, feed-rate and hopper or silo configurations are considered when designing the proper solution for your application.
Available Features / Options
- Custom Engineered For Your Specific Application
- Wide Range Of Construction Materials – Carbon Steel, Stainless Steel and Abrasion-Resistant Alloys
- Flight Configurations Designed For Material Characteristics – Variable Pitch, Mass-Flow or Tapered Flight
- High Torque Drive Units To Start Up Under Head Load Conditions
- Single Screw Feeders
- Multiple-Screw Live Bottom Feeders
- Shaftless Screw Feeders
- Mass-Flow Screw Feeders
Available Configurations
KWS is the industry leader for designing screw feeders and live bottoms. KWS is an ISO 9001:2015 certified manufacturer. Every component and assembly is manufactured in the USA by highly skilled craftsmen. All KWS welders are certified in accordance with American Welding Society (AWS) Codes. KWS Screw Feeders and Live Bottoms are manufactured to rigid quality standards.
Resources for Screw Feeders & Live Bottoms
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Heavy Duty Screw Feeder for Metering Lime Kiln Dust at Major Lime Supplier in AL
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The KWS screw feeder was designed for the harshest environment and duty of the application and spans…
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The new KWS slide gate and screw feeder were constructed using heavy-duty 304 stainless steel to…
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KWS provided a mass flow bin transition and screw feeder as the most efficient way of metering calcium…
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The KWS variable pitch screw design evenly draws the silica sand from the hopper and avoids rat-holing to…
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By analyzing the existing equipment, KWS determined the root causes of the failures and provided…
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Since glass cullet is very abrasive, inside areas of the bucket elevator and screw feeder were lined with…
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The new KWS screw feeder and bucket elevator were designed for the abrasiveness of the application and…
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KWS designed and manufactured the live bottom screw feeders using 316 stainless steel to eliminate…
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Because KWS provided Nucor with the highest quality equipment and shortest lead time in the industry,…
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Engineers from KWS helped Freemyer redesign the Sand Delivery System to achieve maximum accuracy and feed…
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KWS used its team of engineers to reverse engineer the drums to provide a source that is not only more…
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Read MoreRedesigned Feeder Screw for Metering Powdered Gypsum at Georgia Pacific Mill in McQueeney, TX
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KWS and Motion Industries visited the mill to review the application, determine the exact needs of the…
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KWS manufactured the new 25-foot long screws on 10-inch schedule 120 pipe with a wall thickness of…
Read MoreLive Bottom Bin Replacement Screws
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KWS provides complete Live Bottom Bin Systems or Replacement Screws for Existing Systems.
Read MoreStorage Hopper and Mass Flow Screw Feeder for Shredded Polypropylene and Fiberglass
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The new KWS hopper was designed for a usable capacity of 2,600 cubic feet and for mass flow of the…
Read MoreHigh Capacity Screw Feeder for Mississippi Lime in Ste. Genevieve, MO
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The new KWS screw feeder is equipped with a 125-horsepower motor in order to handle full 100-percent…
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The new KWS screw feeder was designed with a large rectangular inlet and mass-flow screw to allow for…
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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 complete system provided by KWS was constructed from 304 stainless steel to provide long life and…
Read MoreBlender Truck Sand Screws for Frac Sand and Proppant
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KWS manufactures several different designs for metering frac sand and proppant. Some units utilize a fold…
Read MoreCustom-Designed Screw Feeder with Hopper to Distribute Dewatered Biosolids to Belt Dryer for…
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The screw feeder and surge hopper were designed to store an exact volume of dewatered biosolids needed to…
Read MoreMetering Dextrose from Super-Sacks for Georgia Pacific Building Products in Fletcher, OK
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A team from KWS visited the facility and met the Georgia Pacific Plant Engineer to determine the exact…
Read MoreCompact Screw Feeder to Fit Confined Space for Stillwater Mining in Columbus, MT
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Engineers from KWS modeled the new shaftless screw feeder and the surrounding area in Inventor 3D to make…
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KWS engineers traveled to the plant to gather critical dimensional information that would be needed to…
Read MoreInclined Screw Feeder for Metering Food Powders at SensoryEffects in Defiance, OH
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Engineers from KWS worked together with the SensoryEffects corporate project engineer and plant manager…
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 Feeders for Metering Limestone from Weigh Hoppers at Minova in Georgetown, KY
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The KWS engineering and sales team provided detailed design drawings and 3D models prior to the order so…
Read MoreCopper Pellet Leakage Problem Solved at Encore Wire Plant in McKinney, Texas
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KWS visited the facility and met with Encore Wire’s Maintenance Manager to determine the source of the…
Read MoreScrew Feeders and Hoppers for Storing and Metering Silica Sand at Nucor Steel in Plymouth, UT
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KWS provided two heavy-duty screw feeders with hoppers to Nucor Steel. Each screw feeder accurately…
Read MoreTwin Screw Feeder for Metering Wood Shavings at American Wood Fibers in Marshall, TX
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KWS designed and manufactured a twin-screw feeder with independent drive units. Each of the twin screws…
Read MoreBi-Directional Screw Feeder for Unloading Rail Cars at Seaboard Foods in Hugoton, KS
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Engineers from KWS and TranSystems worked together to design a bi-directional screw feeder to rapidly and…
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KWS designed, manufactured, supplied and commissioned an integrated system which required expertise in…
Read MoreStainless Steel Inclined Screw Feeders for Metering Sugar at PIM Brands in Somerset, NJ
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The bulk bag unloading system provided by KWS included an incline screw feeder with hopper and supports.
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The KWS screw feeder was designed to be placed inside of a hopper and meter reclaimed foundry sand to…
Read MoreStainless Inclined Screw Feeders for Metering Specialty Phosphates at Innophos Nutrition in…
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KWS designed the screw feeder on a 45-degree incline to allow for the smallest space to be used.
Read MoreMetering Wood Waste to Boilers at Georgia Pacific Dimensional Lumber Mill in Pineland, TX
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KWS Engineers visited the Pineland mill and met with the Georgia Pacific Boiler/Kiln Supervisor to review…
Read MoreScrew Feeder for Metering Crushed Limestone at AEP Coal Fired Power Plant in Hallsville, TX
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KWS saved GEO thousands of dollars by provided engineering, design and manufacturing of the conveying…
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KWS added a 304 stainless steel diverter or モhogbackヤ above the screw feeder to reduce the headload…
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Large diameter screw feeder is designed to meter, mix and retain a combination of grain products and…
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KWS designed and manufactured the screw feeder to be very reliable and exceed the feed rate requirements…
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Engineers at KWS analyzed the problem of product clogging at the discharge of the screw feeders. By…
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KWS and Komline Sanderson worked closely together to develop an efficient solution for converting…
Read MoreSwiveling Screw Feeder to Meter Fungicide for Crop Sciences Company
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KWS engineers designed a special screw feeder for the application. The screw feeder was located on a…
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KWS designed and manufactured triple mass-flow screw feeders to match the existing hopper at the plant.
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KWS worked directly with engineers at Carbonyx to design mass flow screw feeders specifically for the…
Read MoreScrew Feeders for Metering Glass Cullet
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Screw Feeders needed to meter glass cullet from storage silos to the process furnaces.
Read MorePolished Food-Grade Stainless Steel Screw Feeder for Metering Thickening Agent for Specialty…
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KWS is the industry leader when providing solutions to difficult applications and excels in manufacturing…
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 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…
Read MoreSmall Diameter Stainless Screw Feeders to Meter Metal Catalyst
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KWS worked very closely with both BASF and Control & Metering to supply screw feeders to meet the demands…
Read MoreMass Flow Screw Feeder for Metering Waste Plastic
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KWS engineers designed and manufactured a "mass-flow" cone screw feeder specifically for their…
Read MoreMechanical Conveying System Replaces Pneumatics at Durcon, Inc. in Taylor, Texas
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Professional engineers at KWS designed a support structure that provided the needed lateral support for…
Read MoreMetering and Conveying Raw Materials for Making Glass
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Engineers from KWS worked closely with GE engineering personnel to understand the application and design…
Read MoreMetering and Conveying Spent Brewer’s Grain
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KWS also provided all of the structural supports for the conveyor and feeder, inlet and discharge…
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KWS provided internal plugs inside the center pipe of the screw so the product being conveyed could not…
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One of the worldメs largest producers of cereals, dairy products, snacks and numerous other food…
Read MorePortable Inclined Tubular Screw Feeder for Carbon and Iron Oxide Powder
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KWS created a design with a non-split tubular housing and a screw that fit closely inside the housing to…
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Working together, KWS and Halliburton developed a lightweight, portable screw feeder to meter chemical…
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KWS was able to modify some of the existing equipment design specifications to provide a more efficient…
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KWS designed a screw feeder with several pitch changes, a tubular profile, and a precise speed to meter…
Read MoreHeavy-Duty, Large Capacity Hoppers and Mass-Flow Screw Feeders to Meter Gypsum and Bottom Ash
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KWS excels at heavy-duty bulk material applications.
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KWS recommended the mass flow screw design as the most efficient way of discharging the bulk material…
Read MoreHorizontal and Vertical Screw Conveyors for Conveying Ready-Mix Joint Compounds
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KWS provided both horizontal screw feeders and vertical screw conveyors to Freeman Products for an…
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Since granulated sugar is a food product, KWS designed and constructed the screw feeders from 304…
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KWS was able to furnish a redesigned screw feeder that was tailored to fit Balchemメs precise…
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KWS designed and manufactured an inclined screw feeder with heavy-duty carbon steel construction due to…
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KWS engineers designed a system that could meter and convey the different capacities of raw and finished…
Read MoreLoading Shredded Rubber into Super Sacks
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Genan wanted to eliminate the need for a truck ramp so the hopper could be loaded from ground level. KWS…
Read MoreLow Profile Multi-Screw Feeder
Problem Solver
KWS designed and manufactured a one of a kind, low profile multi-screw feeder as the perfect solution.
Read MoreFood Grade Reversible Screw Feeder
Problem Solver
KWS provided a reversible screw feeder with a central inlet, which proved to be the ideal solution.
Read MoreHeavy-Duty Mass-Flow Twin Screw Feeders and Bucket Elevators for Ground Rubber
Problem Solver
KWS designed and manufactured twin mass-flow screw feeders to match hoppers supplied by Hoover Conveyor.
Read MoreHeavy Duty Tri-Braze™ Construction Screw Feeder for Metering Perlite Fines
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KWS worked with Nestle Purina and a consulting engineering firm to develop an excellent solution for…
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BRPG contacted KWS after meeting with our local sales representative and requested an engineered solution…
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KWS engineers designed a tapered trapezoidal storage bin with two lump-breakers to break up bales and…
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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 for Dewatering, Mixing, and Drying Oilfield Drill Cuttings
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KWS designed and manufactured every piece of the drill cuttings disposal system.
Read MoreDesign-Build System for Prototype Gasification Process
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KWS designed and manufactured every piece of mechanical equipment on the project from the initial feed…
Read MoreDesign-Build System Utilizing Live Bottom Screw Feeders, Vertical Screw Conveyor & Hoppers…
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KWS designed a special live bottom hopper with a unique bridge breaker and screw feeder to meter the raw…
Read MoreBiosolids Load-Out Facility for Kitchener, Ontario, Canada
Problem Solver
KWS provided fully redundant systems from the centrifuges to the truck loading bays with two distribution…
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