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.

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
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Heat Transfer Screw Processors Advantages, Features and Options

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

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

Heat Transfer Screw Processors Resources & Downloads

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.


The American Society
of Mechanical Engineers

National Board of Boiler and
Pressure Vessel Inspectors

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