INDUSTRY COMPONENT

Agitation Paddles/Blades

Agitation paddles/blades are rotating components designed to create fluid motion, mixing, or material transport in industrial processes.

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Component Specifications

Definition
Agitation paddles or blades are mechanical components mounted on a rotating shaft within a vessel or chamber. They impart kinetic energy to fluids, slurries, or granular materials, inducing flow patterns that achieve homogenization, suspension, heat transfer, or chemical reaction enhancement. Their design directly influences mixing efficiency, power consumption, and process outcomes.
Working Principle
The working principle involves converting rotational mechanical energy from a drive shaft into fluid kinetic energy. As the paddle rotates, it pushes against the medium, creating shear forces, turbulence, and bulk flow. The specific flow pattern (axial, radial, or tangential) depends on the blade geometry, angle, and rotational speed, which are engineered to meet specific process requirements like blending, solids suspension, or gas dispersion.
Materials
Common materials include stainless steel (AISI 304, 316, 316L for corrosion resistance), carbon steel, alloy steels, or specialized coatings/plastics (e.g., PTFE-lined, polypropylene) for chemical compatibility. Selection depends on factors like fluid corrosivity, abrasion resistance, temperature, and hygiene standards (e.g., food/pharmaceutical grades).
Technical Parameters
  • Diameter Typically 50-80% of vessel diameter
  • Tip_Speed 1-10 m/s depending on application
  • Blade_Angle 45-90 degrees relative to shaft
  • Blade_Count 2 to 6 blades common
  • Power_Requirement Function of viscosity, density, and speed
Standards
ISO 2858, DIN 28131

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Agitation Paddles/Blades.

agitation paddle mixing blade industrial agitator impeller design fluid mixing slurry agitation chemical reactor food processing mixer Agitation Paddles/Blades Agitation Paddles/Blades in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Agitator/Feeder Mechanism

A mechanical component within a sorting hopper that agitates materials to prevent bridging and feeds them consistently to downstream processes.

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Engineering Analysis

Risks & Mitigation
  • Inefficient mixing leading to product inconsistency
  • Mechanical failure from corrosion or fatigue
  • Cavitation at high speeds damaging blades
  • Contamination from material degradation
FMEA Triads
Trigger: Corrosion or erosion from aggressive chemicals/abrasives
Failure: Blade thinning, cracking, or complete detachment
Mitigation: Use corrosion-resistant alloys (e.g., Hastelloy), apply protective coatings, implement regular thickness inspections via NDT.
Trigger: Improper installation or shaft misalignment
Failure: Vibration, unbalanced loads, premature bearing failure
Mitigation: Follow precise alignment procedures during installation, use dynamic balancing, and monitor vibration levels with sensors.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 2768-m, surface finish Ra ≤ 0.8 μm for hygienic applications
Test Method
Performance testing per ISO 9101 for mixing efficiency; material certification per ASTM A240 for stainless steel

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between a paddle and a turbine blade?

Paddles are typically larger, slower-moving blades for gentle mixing or high-viscosity fluids, while turbine blades are smaller, high-speed designs that generate high shear and intense turbulence for rapid dispersion or gas-liquid mixing.

How do I select the right agitation blade for my process?

Selection depends on fluid viscosity, desired mixing intensity (blending vs. dispersion), solids content, corrosion requirements, and vessel geometry. Consulting performance curves (power number vs. Reynolds number) and material compatibility charts is essential.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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Additives (e.g., Flow Agents) Agitator (if equipped)