KWS Manufacturing

Heat Transfer Screw Processors

During the processing of many bulk materials, there is a requirement to cool, heat, or maintain a specific product temperature while conveying the product. The desired temperature fluctuations must be calculated and engineered into the system to accomplish the preferred objectives. KWS Heat Transfer Screw Processors are the perfect solution for these applications.

Engineering Guide Industry Solutions

Twin Hollow Flight Screw Processor for Cooling Hot Ash

Heat Transfer Screw Processors - KWS Manufacturing

Common Applications for Thermal Processors

  • Cooling fly ash from boilers at coal-fired power plants
  • Heating lime for asphalt shingle operations
  • Maintaining a specific temperature for food products
  • Cooling drill cuttings from a rotary dryer

KWS Heat Transfer Screw Processors indirectly transfer heat to or from bulk materials by introducing a heat transfer medium such as cool water, hot oil or steam through a special trough jacket and/or center pipe and hollow flights. Cooling or heating a bulk material to a desired exit temperature is accomplished by the surface area of the screw processor and designing the system flow to match the heat load requirements of the application.

KWS Heat Transfer Screw Processors are very cost-effective when compared to other methods of heat transfer. KWS designs and manufactures Heat Transfer Screw Processors to meet the needs of many industries, such as Chemical, Minerals Processing, Food, Power and Wastewater Treatment.

Heat Transfer Screw Processors are referred to by many different names:

  • Ash Coolers
  • Screw Coolers
  • Screw Heat Exchangers
  • Cooling Screws
  • Hollow Flight Screws

Independent Drive Units for Twin Hollow Flight Screw Processor

Heat Transfer Screw Processors - KWS Manufacturing

Available Features / Options

  • Available Construction – Carbon Steel, Stainless Steel and High-Nickel Alloys
  • Unique Hollow-Flight Design For Maximized Surface Area and Heat Transfer
  • Totally Enclosed Construction For Dust and Vapor-Tight Requirements
  • Flight Configurations Available For Mixing and Agitating
  • Custom Engineered For Your Specific Application
  • Single Screw Processors
  • Multiple-Screw Processors – Twin and Quad Screw
  • Hollow Flight and Non-Hollow Flight Designs

Available Configurations

As a screw conveyor manufacturer, KWS is unique because we are certified by ASME to build and repair coded pressure vessels. All KWS Heat Transfer Screw Processors are manufactured in accordance with the ASME Boiler and Pressure Vessel Code. In addition, every component and assembly is manufactured in the USA by highly skilled craftsmen in an ISO 9001:2015 certified facility.


News & Articles

Heat Transfer Screw Processors Resources

Problem Solvers for Heat Transfer Screw Processors

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Hollow Flight Thermal Processor for Cooling Activated Carbon for ADA Carbon in Coushatta, LA

Hollow Flight Thermal Processor for Cooling Activated Carbon for ADA Carbon in Coushatta, LA - KWS Manufacturing

KWS designed the thermal processor with the ability to handle the heat load while meeting capacity…

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Special Thermal Processor for Cooling Activated Carbon

Special Thermal Processor for Cooling Activated Carbon - KWS Manufacturing

ADA Carbon Solutions needed a solution for conveying and cooling high temperature activated carbon.

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Stainless Steel Thermal Screw Processors for Cooling and Conveying Wood Biomass Char

Stainless Steel Thermal Screw Processors for Cooling and Conveying Wood Biomass Char - KWS Manufacturing

KWS designed a special screw feeder with hopper large enough to handle multiple batches. The screw feeder…

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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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Shaftless Screw Conveyors and Thermal Processor for Elevated Temperature Gasification Project

Shaftless Screw Conveyors and Thermal Processor for Elevated Temperature Gasification Project - KWS Manufacturing

KWS utilized temperature-resistant alloys to maintain high yield strengths and corrosion resistance at…

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Hollow Flight Cooling Screw

Hollow Flight Cooling Screw - KWS Manufacturing

KWS engineers were able to use information provided by the Customer and design hollow flight screws that…

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Cooling Food Product with Thermal Screw Processor

Cooling Food Product with Thermal Screw Processor - KWS Manufacturing

Solazyme, one of the leading global innovators in the industry of renewable oils, needed a solution for…

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