Auger Screw: Capacity Up to 500 m³/h, Diameter 50-500 mm

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 7119, DIN 15262

Parent Products

This component is used in the following industrial products

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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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Auger Screw

Manufacturer profiles associated with Auger Screw.

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Auger Screw