Bulk Material Handling Equipment for Conveying, Feeding, Elevating, and Flow Control

Improve Material Flow | Increase Reliability | Reduce Downtime

We help identify and implement the right KWS Manufacturing solution for bulk material conveying, screw feeding, bucket elevating, drag conveying, slide gates, live bottoms, hoppers, bins, and custom engineered material handling systems. From food ingredients and chemicals to cement, aggregates, agriculture, mining, wastewater, recycling, and other dry bulk materials, KWS equipment helps manufacturers improve material flow, increase production efficiency, and maximize process reliability.

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Screw Conveyors • Screw Feeders • Bucket Elevators • Vertical Screw Conveyors • Live Bottom Feeders • Slide Gates • Hoppers • Bins • Silos

KWS Shaftless Screw Conveyors

Convey sticky, wet, or difficult bulk material.

Discuss My Application Shaftless Conveyor Brochure PDF Design Worksheet PDF Product Details

Convey sticky, wet, or difficult bulk material.

Is your material wrapping, sticking, or struggling to move through conventional equipment?

A shaftless spiral removes the central shaft and internal hanger bearings from the conveying path. KWS designs these conveyors for difficult materials such as dewatered biosolids and sticky process byproducts.

Typical application
Move dewatered cake from a centrifuge or filter press to collection.

Also known as: Shaftless augers, spiral conveyors, sludge conveyors.

Materials & industries

Wet, sticky and sluggish materials from centrifuges, filter presses and mixers. Applications include dewatered biosolids, food byproducts and selected chemical or mineral duties.

KWS application example

Conveying biomass in a gasification process

KWS supplied shaftless conveyors for a biomass gasification project. The equipment handles the feedstock and connects with a thermal processor used to cool the resulting char.

Shaftless conveyor supplied for the biomass gasification project.

Process installation associated with the KWS biomass project.

Application photos: KWS Manufacturing. Read the full KWS case study >>

What this equipment can help you do

Open spiral centre

Review a conveying path without a central shaft.

Difficult-material handling

Assess sticky or high-moisture feeds.

Liner selection

Match the wear liner and spiral to the operating conditions.

How the process works

Receive the material

Define discharge conditions from the upstream process.

Move with the spiral

The shaftless spiral conveys material along the lined housing.

Deliver to collection

Route material to storage, a container, or the next process.

Configuration & selection

Feed condition: Moisture, consistency, lump size, and upstream discharge pattern.
Wear review: Spiral, liner, abrasion, temperature, and replacement access.
Layout: Length, incline, discharge points, and drive access.

Options to discuss

Spiral and liner materials
Carbon or stainless construction
Inclined configurations
Discharge and service-access arrangements

Share your material, moisture, consistency, throughput, conveyor route, and upstream equipment. Include a drawing or photos when available.

Plan your application review

Is shaftless always better than shafted?

Selection depends on the material and duty. Share the actual handling problem so RTS can compare the two designs instead of assuming one is the better fit.

What should I send for an initial recommendation?

Start with the material, operating conditions, capacity, installation dimensions, and the problem you want to solve. RTS will review the requirements with KWS and identify missing information before a final selection.

Can you review an existing installation?

Send the equipment model or serial number, photos, drawings, and a description of the issue. We can discuss replacement equipment, parts, or an application review.