KWS Manufacturing

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 Solutions
 
 

Twin Variable Pitch Ribbon Screw Feeder

Screw Feeders & Live Bottoms - KWS Manufacturing

Covers are removed for demonstration purposes only. Equipment must be operated at all times with covers securely bolted or fastened in place to provide fixed guarding.

 

Advantages 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
Screw Feeders & Live Bottoms Benefits
 
 

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.

 
 

Stainless Steel Food Grade Screw Feeder with Hopper

Screw Feeders & Live Bottoms - KWS Manufacturing
 

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
Design Worksheet
 
 
  • 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 9000-2001 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.

 
 

Problem Solvers for Screw Feeders & Live Bottoms

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Compact Screw Feeder to Fit Confined Space for Stillwater Mining in Columbus, MT

Compact Screw Feeder to Fit Confined Space for Stillwater Mining in Columbus, MT - KWS Manufacturing

Engineers from KWS modeled the new shaftless screw feeder and the surrounding area in Inventor 3D to make…

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Screw Feeder to Meter Animal Feed Ingredients for Ridley Block in Ft. Worth, TX

Screw Feeder to Meter Animal Feed Ingredients for Ridley Block in Ft. Worth, TX - KWS Manufacturing

KWS engineers traveled to the Ridley Block plant to view the existing screw feeder and create designs for…

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Inclined Screw Feeder for Metering Food Powders at SensoryEffects in Defiance, OH

Inclined Screw Feeder for Metering Food Powders at SensoryEffects in Defiance, OH - KWS Manufacturing

Engineers from KWS worked together with the SensoryEffects corporate project engineer and plant manager…

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Metering and Conveying Shredded Fiberglass at CTA Acoustics in Corbin, KY

Metering and Conveying Shredded Fiberglass at CTA Acoustics in Corbin, KY - KWS Manufacturing

KWS engineers and local field representatives worked side by side with CTA Acoustics to develop the ideal…

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Screw Feeders for Metering Limestone from Weigh Hoppers at Minova in Georgetown, KY

Screw Feeders for Metering Limestone from Weigh Hoppers at Minova in Georgetown, KY - KWS Manufacturing

The KWS engineering and sales team provided detailed design drawings and 3D models prior to the order so…

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Copper Pellet Leakage Problem Solved at Encore Wire Plant in McKinney, Texas

Copper Pellet Leakage Problem Solved at Encore Wire Plant in McKinney, Texas - KWS Manufacturing

KWS visited the facility and met with Encore Wire’s Maintenance Manager to determine the source of the…

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Screw Feeders and Hoppers for Storing and Metering Silica Sand at Nucor Steel in Plymouth, UT

Screw Feeders and Hoppers for Storing and Metering Silica Sand at Nucor Steel in Plymouth, UT - KWS Manufacturing

KWS provided two heavy-duty screw feeders with hoppers to Nucor Steel. Each screw feeder accurately…

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Twin Screw Feeder for Metering Wood Shavings at American Wood Fibers in Marshall, TX

Twin Screw Feeder for Metering Wood Shavings at American Wood Fibers in Marshall, TX - KWS Manufacturing

KWS designed and manufactured a twin-screw feeder with independent drive units. Each of the twin screws…

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Bi-Directional Screw Feeder for Unloading Rail Cars at Seaboard Foods in Hugoton, KS

Bi-Directional Screw Feeder for Unloading Rail Cars at Seaboard Foods in Hugoton, KS - KWS Manufacturing

Engineers from KWS and TranSystems worked together to design a bi-directional screw feeder to rapidly and…

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Biosolids Cake Handling System for Storage and Truck Load Out at Waterloo, ON WWTP

Biosolids Cake Handling System for Storage and Truck Load Out at Waterloo, ON WWTP - KWS Manufacturing

KWS designed, manufactured, supplied and commissioned an integrated system which required expertise in…

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Stainless Steel Inclined Screw Feeders for Metering Sugar at PIM Brands in Somerset, NJ

Stainless Steel Inclined Screw Feeders for Metering Sugar at PIM Brands in Somerset, NJ - KWS Manufacturing

The bulk bag unloading system provided by KWS included an incline screw feeder with hopper and supports.

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Screw Feeder for Metering Reclaimed Foundry Sand for SandMold Systems

Screw Feeder for Metering Reclaimed Foundry Sand  for SandMold Systems - KWS Manufacturing

The KWS screw feeder was designed to be placed inside of a hopper and meter reclaimed foundry sand to…

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Stainless Inclined Screw Feeders for Metering Specialty Phosphates at Innophos Nutrition in…

Stainless Inclined Screw Feeders for Metering Specialty Phosphates at Innophos Nutrition in North Salt Lake, UT - KWS Manufacturing

KWS designed the screw feeder on a 45-degree incline to allow for the smallest space to be used.

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Metering Wood Waste to Boilers at Georgia Pacific Dimensional Lumber Mill in Pineland, TX

Metering Wood Waste to Boilers at  Georgia Pacific Dimensional Lumber Mill in Pineland, TX - KWS Manufacturing

KWS Engineers visited the Pineland mill and met with the Georgia Pacific Boiler/Kiln Supervisor to review…

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Screw Feeder for Metering Crushed Limestone at AEP Coal Fired Power Plant in Hallsville, TX

Screw Feeder for Metering Crushed Limestone at AEP Coal Fired Power Plant in Hallsville, TX - KWS Manufacturing

Engineers from KWS visited the facility and met the AEP SWEPCO maintenance planner to determine the…

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Loadout System for Offal and Feathers at a Pilgrim’s Chicken Processing Plant in Lufkin,…

Loadout System for Offal and Feathers at a Pilgrim’s Chicken Processing Plant in Lufkin, Texas - KWS Manufacturing

KWS Design Engineers visited the Lufkin facility and met with the Pilgrimメs Plant Manager to identify…

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System for Conveying and Elevating Aluminum Trihydrate at GEO® Specialty Chemicals in Deer…

System for Conveying and Elevating Aluminum Trihydrate  at GEO® Specialty Chemicals in Deer Park, TX - KWS Manufacturing

KWS saved GEO thousands of dollars by provided engineering, design and manufacturing of the conveying…

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Special Screw Feeder for Metering Green Malt at BRIESS Malt in Chilton, WI

Special Screw Feeder for Metering Green Malt at BRIESS Malt in Chilton, WI - KWS Manufacturing

KWS added a 304 stainless steel diverter or モhogbackヤ above the screw feeder to reduce the headload…

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Special Screw Feeder for Metering, Mixing and Processing Grains

Special Screw Feeder for Metering, Mixing and Processing Grains - KWS Manufacturing

Large diameter screw feeder is designed to meter, mix and retain a combination of grain products and…

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Stainless Steel Screw Feeder to Meter Biomass to High Temperature Reactor

Stainless Steel Screw Feeder to Meter Biomass to High Temperature Reactor - KWS Manufacturing

KWS designed and manufactured the screw feeder to be very reliable and exceed the feed rate requirements…

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Stainless Steel Screw Feeders for Baking Ingredients

Stainless Steel Screw Feeders for Baking Ingredients - KWS Manufacturing

Engineers at KWS analyzed the problem of product clogging at the discharge of the screw feeders. By…

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Storage Hopper with Live Bottom Screw Feeder and Thermal Processors for Sludge Drying System at…

Storage Hopper with Live Bottom Screw Feeder and Thermal Processors for Sludge Drying System at Wyomissing Valley Treatment Plant in Reading, PA - KWS Manufacturing

KWS and Komline Sanderson worked closely together to develop an efficient solution for converting…

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Swiveling Screw Feeder to Meter Fungicide for Crop Sciences Company

Swiveling Screw Feeder to Meter Fungicide for Crop Sciences Company - KWS Manufacturing

KWS engineers designed a special screw feeder for the application. The screw feeder was located on a…

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Triple Mass-Flow Screw Feeders and Conveyors for Phosphate Ore

Triple Mass-Flow Screw Feeders and Conveyors for Phosphate Ore - KWS Manufacturing

KWS designed and manufactured triple mass-flow screw feeders to match the existing hopper at the plant.

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Twin Mass Flow Screw Feeders and Material Shut-Off Gates

Twin Mass Flow Screw Feeders and Material Shut-Off Gates - KWS Manufacturing

KWS worked directly with engineers at Carbonyx to design mass flow screw feeders specifically for the…

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Screw Feeders for Metering Glass Cullet

Screw Feeders for Metering Glass Cullet - KWS Manufacturing

Screw Feeders needed to meter glass cullet from storage silos to the process furnaces.

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Polished Food-Grade Stainless Steel Screw Feeder for Metering Thickening Agent for Specialty…

Polished Food-Grade Stainless Steel Screw Feeder for Metering Thickening Agent for Specialty Chemical Company - KWS Manufacturing

KWS is the industry leader when providing solutions to difficult applications and excels in manufacturing…

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Shafted Live Bottoms and Transfer Screw Conveyors for Handling Biosolids for the City of San…

Shafted Live Bottoms and Transfer Screw Conveyors for Handling Biosolids for the City of San Diego - KWS Manufacturing

KWS used proprietary design calculations and Autodesk 3D Inventor software to design the live bottoms,…

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Shafted Screw Conveyors for Transferring Biosolids for City of Holland, MI

Shafted Screw Conveyors for Transferring Biosolids for City of Holland, MI - KWS Manufacturing

KWS Environmental designed the shafted screw conveyors to be reliable with minimal maintenance downtime…

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Small Diameter Stainless Screw Feeders to Meter Metal Catalyst

Small Diameter Stainless Screw Feeders to Meter Metal Catalyst - KWS Manufacturing

KWS worked very closely with both BASF and Control & Metering to supply screw feeders to meet the demands…

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Mass Flow Screw Feeder for Metering Waste Plastic

Mass Flow Screw Feeder for Metering Waste Plastic - KWS Manufacturing

KWS engineers designed and manufactured a "mass-flow" cone screw feeder specifically for their…

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Mechanical Conveying System Replaces Pneumatics at Durcon, Inc. in Taylor, Texas

Mechanical Conveying System Replaces Pneumatics at Durcon, Inc. in Taylor, Texas - KWS Manufacturing

Professional engineers at KWS designed a support structure that provided the needed lateral support for…

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Metering and Conveying Raw Materials for Making Glass

Metering and Conveying Raw Materials for Making Glass - KWS Manufacturing

Engineers from KWS worked closely with GE engineering personnel to understand the application and design…

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Metering and Conveying Spent Brewer’s Grain

Metering and Conveying Spent Brewer’s Grain - KWS Manufacturing

KWS also provided all of the structural supports for the conveyor and feeder, inlet and discharge…

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Polished Stainless Steel Mass-Flow Screw Feeders for Cereal Fines

Polished Stainless Steel Mass-Flow Screw Feeders for Cereal Fines - KWS Manufacturing

KWS provided internal plugs inside the center pipe of the screw so the product being conveyed could not…

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Polished Stainless Steel Screw Feeders for Metering Snack Products

Polished Stainless Steel Screw Feeders for Metering Snack Products - KWS Manufacturing

One of the worldメs largest producers of cereals, dairy products, snacks and numerous other food…

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Portable Inclined Tubular Screw Feeder for Carbon and Iron Oxide Powder

Portable Inclined Tubular Screw Feeder for Carbon and Iron Oxide Powder - KWS Manufacturing

KWS created a design with a non-split tubular housing and a screw that fit closely inside the housing to…

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Portable Screw Feeder for Metering Fracking Additive

Portable Screw Feeder for Metering Fracking Additive - KWS Manufacturing

Working together, KWS and Halliburton developed a lightweight, portable screw feeder to meter chemical…

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Railcar Unloading System for Sugar

Railcar Unloading System for Sugar - KWS Manufacturing

KWS was able to modify some of the existing equipment design specifications to provide a more efficient…

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Hopper and Live Bottom Feeder to Store and Meter Natural Wood Glue Additive

Hopper and Live Bottom Feeder to Store and Meter Natural Wood Glue Additive - KWS Manufacturing

KWS designed a screw feeder with several pitch changes, a tubular profile, and a precise speed to meter…

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Hoppers with Live Bottom Mass Flow Screw Feeders for Storing and Metering Crystalline Silica…

Hoppers with Live Bottom Mass Flow Screw Feeders for Storing and Metering Crystalline Silica Powder - KWS Manufacturing

KWS recommended the mass flow screw design as the most efficient way of discharging the bulk material…

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Horizontal and Vertical Screw Conveyors for Conveying Ready-Mix Joint Compounds

Horizontal and Vertical Screw Conveyors for Conveying Ready-Mix Joint Compounds - KWS Manufacturing

KWS provided both horizontal screw feeders and vertical screw conveyors to Freeman Products for an…

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Inclined Screw Feeders for Metering Granulated Sugar

Inclined Screw Feeders for Metering Granulated Sugar - KWS Manufacturing

Since granulated sugar is a food product, KWS designed and constructed the screw feeders from 304…

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Inclined Screw Feeder for Sludgy Chemicals

Inclined Screw Feeder for Sludgy Chemicals - KWS Manufacturing

KWS was able to furnish a redesigned screw feeder that was tailored to fit Balchemメs precise…

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Inclined Screw Feeder to Meter Glass Powder for Coating of Water Heater Tanks

Inclined Screw Feeder to Meter Glass Powder for Coating of Water Heater Tanks - KWS Manufacturing

KWS designed and manufactured an inclined screw feeder with heavy-duty carbon steel construction due to…

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Limestone Conveying System

Limestone Conveying System - KWS Manufacturing

KWS engineers designed a system that could meter and convey the different capacities of raw and finished…

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Loading Shredded Rubber into Super Sacks

Loading Shredded Rubber into Super Sacks - KWS Manufacturing

Genan wanted to eliminate the need for a truck ramp so the hopper could be loaded from ground level. KWS…

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Low Profile Multi-Screw Feeder

Low Profile Multi-Screw Feeder - KWS Manufacturing

KWS designed and manufactured a one of a kind, low profile multi-screw feeder as the perfect solution.

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Food Grade Reversible Screw Feeder

Food Grade Reversible Screw Feeder - KWS Manufacturing

KWS provided a reversible screw feeder with a central inlet, which proved to be the ideal solution.

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Heavy-Duty Mass-Flow Twin Screw Feeders and Bucket Elevators for Ground Rubber

Heavy-Duty Mass-Flow Twin Screw Feeders and Bucket Elevators for Ground Rubber - KWS Manufacturing

KWS designed and manufactured twin mass-flow screw feeders to match hoppers supplied by Hoover Conveyor.

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Heavy Duty Tri-Braze™ Construction Screw Feeder for Metering Perlite Fines

Heavy Duty Tri-Braze™ Construction Screw Feeder for Metering Perlite Fines - KWS Manufacturing

KWS worked with Nestle Purina and a consulting engineering firm to develop an excellent solution for…

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Custom-Engineered Bulk Material Handling System for Zein Corn Protein Plant

Custom-Engineered Bulk Material Handling System for Zein Corn Protein Plant - KWS Manufacturing

BRPG contacted KWS after meeting with our local sales representative and requested an engineered solution…

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Custom Engineered Storage, Metering and Conveying System for Steamed Tobacco Stems

Custom Engineered Storage, Metering and Conveying System for Steamed Tobacco Stems - KWS Manufacturing

KWS engineers designed a tapered trapezoidal storage bin with two lump-breakers to break up bales and…

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Design-Build System for Feeding and Conveying Wood Chips for enviraPAC in Monticello, AR

Design-Build System for Feeding and Conveying Wood Chips for enviraPAC in Monticello, AR - KWS Manufacturing

The KWS inclined screw feeders and conveyors were designed to operate 24 hours per day, 7 days per week…

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Design-Build System for Dewatering, Mixing, and Drying Oilfield Drill Cuttings

Design-Build System for Dewatering, Mixing, and Drying Oilfield Drill Cuttings - KWS Manufacturing

KWS designed and manufactured every piece of the drill cuttings disposal system.

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Design-Build System for Prototype Gasification Process

Design-Build System for Prototype Gasification Process - KWS Manufacturing

KWS designed and manufactured every piece of mechanical equipment on the project from the initial feed…

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Design-Build System Utilizing Live Bottom Screw Feeders, Vertical Screw Conveyor & Hoppers…

Design-Build System Utilizing Live Bottom Screw Feeders, Vertical Screw Conveyor & Hoppers for Nuway Tobacco in South Windsor, CT - KWS Manufacturing

KWS designed a special live bottom hopper with a unique bridge breaker and screw feeder to meter the raw…

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Biosolids Load-Out Facility for Kitchener, Ontario, Canada

Biosolids Load-Out Facility for Kitchener, Ontario, Canada - KWS Manufacturing

KWS provided fully redundant systems from the centrifuges to the truck loading bays with two distribution…

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