Screw Feeders

Screw Feeder Systems by Thomas Conveyor Co.

Stainless Steel screw feeder by Thomas Conveyor Compnay

Custom Screw Feeder Systems

Screw Feeders move a wide variety of material from bins or hoppers at a constant and controlled rate of flow. One or more tapered or variable pitch screws convey the material at the required rate. Screw feeders are available in a variety of types to suit specific materials and applications.

  • Inlet is always flood loaded
  • 100% trough loading at inlet
  • Volumetric metering device

Difference between a Screw Conveyor and a Screw Feeder

AttributeConveyorFeeder
Purpose Unload and convey materials Meter flow of material
Mode Operates partially full Operates 100% full
Speed Fixed, relatively high speeds Variable, relatively low speeds
Rate Control No Yes

Multi screw feeder by Thomas Conveyor Company

Feeder Varieties

Multi Screw Conveyors are used as screw feeders and may consist of twin, triple, or quadruple screws, side by side. They provide a means of moving a wide variety of material from bins or hoppers at a constant and controlled rate of flow.

Screw feeders are available in a variety of types to suit specific materials and applications. Get in touch so a representative can help you determine the best solution for your application.

Overview

Thomas Conveyor Company
Thomas Conveyor is one of the largest custom screw conveyor manufacturers in North America. As an active member of the Conveyor Equipment Manufacturers Association (CEMA), Thomas Conveyor is always up-to-date with the latest engineering and manufacturing techniques. Our screw conveyor systems are available in a wide variety of materials resistant to corrosion, abrasion, and heat. We offer conveyors for use in horizontal, inclined, and vertical applications. Our screw conveyor systems are designed to meet and surpass all application requirements.

Screw Conveyor Advantages

Extreme Versatility
Several options and parts combinations are available for conveying a wide variety of materials in many different markets.

Mixing
The normal rotation of the screw when conveying material also lifts and tumbles the product, which makes a screw conveyor an efficient mixer.

Simultaneous Conveyance in Two Directions
Combining right-hand and left-hand flights produces bidirectional conveyance.

Ready Reversibility
No need for soft-start units.

High-temperature Materials
Properly applied screw conveyors can handle product at temperatures above 1000 degree F.

Abrasive Materials
Many special materials and hard-coating options are available to extend screw life in extremely abrasive applications.

Flood Loading Capability
Screw feeders are very efficient and reliable in regulating feed to downstream equipment. The screw diameter, pitch combination, pipe size, and flight configuration can be customized to solve specific bin unloading requirements.

Total Enclosure Screw Conveyor Systems
Completely enclosed systems protect the environment from the product being handled (dust-tight) and/or protect the conveyed material from the environment.

Large Lump Size
Within industry guidelines, conveyance of pieces up to 7-1/2” is possible.

Multiple Inlets or Discharges
Intermediate inlets and/or discharges are readily added.

All Thomas Products

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Call us at (281) 350-0550

or email us at info@approtec.com

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