Fan Blade/Impeller: Diameter 80-1200 mm, Noise Level 20-65 dBA

Component Specifications

Definition

A precision-engineered rotating component designed to convert rotational mechanical energy into kinetic energy of air or gas flow. In cooling fan assemblies, it creates pressure differentials to move air across heat exchangers, electronic components, or industrial equipment for thermal management. The blade geometry (pitch, chord, twist) determines airflow characteristics, efficiency, and noise levels.

Working Principle

Operates on aerodynamic principles: as the impeller rotates, blade curvature creates pressure differences between the leading and trailing edges. This generates either axial flow (parallel to rotation axis) or centrifugal flow (radial outward), depending on blade design. The rotational kinetic energy is transferred to air molecules, creating directed airflow for heat dissipation.

Materials

Typically aluminum alloys (6061, 7075), engineering plastics (PBT, PPS, nylon with glass fiber), or stainless steel (304, 316). Material selection depends on required strength, weight, corrosion resistance, and operating temperature range (-40°C to 150°C).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Diameter	80-1200 mm
Blade Count	3-11 blades
Noise Level	20-65 dBA
Airflow Rate	10-5000 CFM
Balance Grade	G6.3 per ISO 1940
Rotation Speed	500-6000 RPM
Static Pressure	10-500 Pa

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 5801, ISO 13347, AMCA 210, DIN 24163

Parent Products

This component is used in the following industrial products

Cooling Fan Assembly

A cooling system component that dissipates heat from critical areas of the foil sealing machine to maintain optimal operating temperatures.

View Product Details

Engineering Analysis

Risks & Mitigation

Imbalance causing vibration damage
Fatigue cracking at blade root
Material degradation from chemical exposure
Erosion from particulate matter

FMEA Triads

Trigger: Material fatigue from cyclic loading
Failure: Blade fracture at hub connection
Mitigation: Implement regular non-destructive testing (dye penetrant or ultrasonic), maintain within 80% of maximum RPM, use fatigue-resistant alloys

Trigger: Foreign object ingestion
Failure: Blade deformation or imbalance
Mitigation: Install protective inlet screens, maintain clean operating environment, implement magnetic separators in airflow path

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm on critical dimensions, ±0.5° on blade pitch angle

Test Method

AMCA 210 airflow performance testing, ISO 1940 balance testing, ISO 5801 aerodynamic testing, salt spray corrosion testing per ASTM B117

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 Fan Blade/Impeller

Manufacturer profiles associated with Fan Blade/Impeller.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What's the difference between axial and centrifugal fan blades?

Axial blades move air parallel to the rotation axis (like propeller fans), while centrifugal blades redirect airflow radially outward using curved vanes, creating higher pressure for ducted systems.

How often should industrial fan blades be inspected?

Visual inspections every 3 months, vibration analysis every 6 months, and full balancing checks annually or after 4000 operating hours, depending on environment and duty cycle.

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.

Fan Blade/Impeller