INDUSTRY COMPONENT

Auger Screw

A helical screw component used in auger conveyors to move bulk materials through rotation.

Component Specifications

Definition
An auger screw is a precision-engineered helical component that forms the core of screw conveyors and feeders. It consists of a central shaft with a continuous helical flighting (blade) that rotates within a tube or trough to transport granular, powdered, or semi-solid materials axially. The design parameters—including pitch, diameter, flight thickness, and helix angle—determine its capacity, efficiency, and application suitability. It operates by converting rotational torque into linear material displacement, making it essential for controlled, continuous flow in industrial processes.
Working Principle
The auger screw operates on the Archimedes' screw principle: as the helical flighting rotates, material trapped between the flights is pushed forward along the axis due to friction and gravitational forces. The rotation creates a positive displacement action, where material is conveyed from the inlet to the discharge point without backflow, enabling precise metering and mixing in applications like feeding, dosing, or extrusion.
Materials
Typically made from carbon steel (e.g., AISI 1045), stainless steel (e.g., 304 or 316 for corrosion resistance), or hardened alloys. Coatings like zinc plating or polymer linings may be applied for wear resistance or food safety. Material selection depends on factors like abrasion, corrosion, temperature, and regulatory compliance (e.g., FDA for food contact).
Technical Parameters
  • Pitch 0.5-1.5 times diameter
  • Length 1-20 meters
  • Capacity Up to 500 m³/h
  • Diameter 50-500 mm
  • Rotation Speed 10-200 RPM
  • Power Requirement 0.5-50 kW
Standards
ISO 7119, DIN 15262

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Auger Screw.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Material jamming due to improper sizing
  • Wear from abrasive materials
  • Corrosion in humid environments
  • Imbalance causing vibration and failure
FMEA Triads
Trigger: Excessive abrasive material load
Failure: Premature flighting wear leading to reduced efficiency
Mitigation: Use hardened materials or coatings; implement regular inspection schedules
Trigger: Misalignment during installation
Failure: Increased vibration and shaft fatigue
Mitigation: Ensure precise alignment per manufacturer specs; use vibration monitoring systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm on diameter, ±1° on helix angle
Test Method
Dimensional inspection per ISO 2768, material testing per ASTM A370, performance testing under simulated load conditions

Buyer Feedback

★★★★☆ 4.9 / 5.0 (19 reviews)

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"The technical documentation for this Auger Screw is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Food Manufacturing environments. No issues with the Auger Screw so far."

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Frequently Asked Questions

What is the difference between an auger screw and a standard screw?

An auger screw is designed for conveying bulk materials with continuous helical flighting, while standard screws (e.g., fasteners) are for joining parts. Auger screws have specific pitch and diameter ratios optimized for flow efficiency.

How do I select the right auger screw material?

Choose based on application: use carbon steel for general use, stainless steel for corrosive or hygienic environments (e.g., food processing), and hardened alloys for high-abrasion materials. Consider coatings for added durability.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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