KWS Manufacturing

Vertical Screw Conveyors

Vertical screw conveyors are a very efficient method for elevating a variety of bulk materials at very steep inclines or completely vertical. The compact design allows for the vertical screw conveyor to fit into almost any plant layout. With a minimum number of moving parts, the vertical screw conveyor is a cost-effective and dependable component of any bulk material handling process.

Engineering Guide Industry Solutions
Vertical Screw Conveyor - KWS Manufacturing

Advantages of Using Vertical Screw Conveyors

  • Ideal for handling dry to semi-fluid materials – free-flowing to sluggish
  • Capacities available up to 6,000 cubic feet per hour
  • Ability to elevate bulk materials up to 30-feet without use of internal bearings
  • Totally enclosed design for dust and vapor-tight requirements
Vertical Screw Conveyor Benefits

KWS designs and supplies vertical screw conveyors to meet the needs of many industries, such as Chemical, Minerals Processing, Food, Wood Products and Wastewater Treatment. For example, our unique shaftless vertical screw conveyor design is used in many Wastewater treatment facilities for elevating dewatered biosolids.

KWS Vertical Screw Conveyors are available in many configurations. Inlet sections can be offset to either side or can be in-line. Horizontal feed conveyors are required to accurately meter bulk materials directly to the vertical conveyor’s inlet for maximum efficiency.

Choosing a Screw Conveyor Component Guide

Shaftless Vertical Screw Conveyor Inlet Section

Vertical Screw Conveyor - KWS Manufacturing

Available Features / Options

  • Wide Range Of Construction Materials – Carbon Steel, Stainless Steel and High-Nickel Alloys
  • Split Tubular Housings For Easy Access
  • Horizontal Feed Conveyors
  • Multiple Tail and Drive Arrangements Available
Design Worksheet
  • Shafted Screw – for free-flowing bulk materials
  • Shaftless Screw – for semi-fluid and sluggish bulk materials

Available Configurations

Vertical screw conveyors are designed based on proven technology and allow for efficient elevation of bulk materials without any restriction to product flow. 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 Vertical Screw Conveyors are manufactured to rigid quality standards.


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