INDUSTRY COMPONENT

Blades/Paddles

Blades/paddles are rotating components in paddle wheels that transfer energy to fluids through hydrodynamic action.

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Component Specifications

Definition
Blades or paddles are the primary working elements of paddle wheels, designed to displace, mix, or propel fluids (liquids or gases) by converting rotational motion into fluid motion. These components feature specific hydrodynamic profiles optimized for efficiency, wear resistance, and minimal cavitation. They are critical in applications requiring controlled fluid movement, agitation, or energy transfer in industrial machinery.
Working Principle
Blades/paddles operate on hydrodynamic principles: as the paddle wheel rotates, the angled surfaces of the blades push against the fluid, creating displacement and momentum transfer. The design ensures optimal fluid contact, minimizing drag while maximizing thrust or mixing efficiency. Energy conversion occurs from mechanical rotation to fluid kinetic energy, governed by blade geometry, rotational speed, and fluid properties.
Materials
Common materials include stainless steel (e.g., AISI 304/316 for corrosion resistance), carbon steel (for strength), aluminum alloys (for lightweight applications), engineered plastics (e.g., polypropylene, PTFE for chemical resistance), and composite materials. Coatings like ceramic or polymer layers may be applied for abrasion resistance.
Technical Parameters
  • Thickness 3-20 mm
  • Blade Width 50-200 mm
  • Blade Length 100-500 mm
  • Mounting Type Bolted, welded, or keyed
  • Fluid Compatibility Water, chemicals, slurries, gases
  • Rotation Speed Range 10-500 RPM
Standards
ISO 5199, DIN 28100

Industry Taxonomies & Aliases

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

paddle blades industrial paddles fluid mixing components paddle wheel parts hydrodynamic blades mixing equipment industrial engineering Blades/Paddles Blades/Paddles in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Paddle Wheel

A rotating component with blades or paddles used to move, mix, or convey powdered materials within a feeding system.

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Engineering Analysis

Risks & Mitigation
  • Blade fatigue failure
  • Corrosion damage
  • Cavitation erosion
  • Imbalance causing vibration
  • Material incompatibility with fluids
FMEA Triads
Trigger: High cyclic loading and stress concentration
Failure: Crack propagation and blade fracture
Mitigation: Use fatigue-resistant materials, regular inspection, and stress-relief designs
Trigger: Exposure to corrosive fluids
Failure: Material degradation and reduced structural integrity
Mitigation: Apply corrosion-resistant coatings or select compatible alloys

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm on critical dimensions, surface finish Ra ≤ 3.2 μm
Test Method
Hydrodynamic performance testing per ISO 5199, material certification, and non-destructive testing (NDT)

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 are the main functions of blades/paddles in paddle wheels?

They primarily displace or mix fluids, transfer energy, and propel materials in applications like agitators, mixers, or water wheels.

How do I select the right material for blades/paddles?

Consider fluid corrosiveness, abrasion, temperature, and hygiene requirements. Stainless steel is common for corrosive environments, while plastics suit chemical resistance.

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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