Agitation Paddles/Blades: Blade_Count 2 to 6 blades common

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

Parameter	Typical range	Notes & selection driver
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

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 2858, DIN 28131

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

Typical Suppliers & Equivalents

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

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Agitation Paddles/Blades

Manufacturer profiles associated with Agitation Paddles/Blades.

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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.

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.

Agitation Paddles/Blades