INDUSTRY COMPONENT

Impeller/Blades

Impeller/blades are rotating components in cooling fans that generate airflow through centrifugal or axial motion.

Component Specifications

Definition
Impeller/blades are precision-engineered rotating elements in cooling fans designed to convert rotational energy into kinetic energy of air or gas. They consist of curved vanes mounted on a central hub that accelerate fluid outward (centrifugal) or along the axis (axial), creating pressure differentials for cooling applications in industrial machinery, HVAC systems, and electronic equipment.
Working Principle
Operates on aerodynamic principles: rotational motion imparts velocity to air molecules via blade curvature and angle of attack, creating low-pressure zones that draw in air and high-pressure zones that expel it, enabling continuous airflow for heat dissipation.
Materials
Aluminum alloys (e.g., 6061-T6), engineering plastics (ABS, PBT), stainless steel (AISI 304), or composite materials; selected based on corrosion resistance, weight, and thermal conductivity requirements.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Diameter80-1200 mm
Hub TypeBore, threaded, or keyed
Blade Count3-12 blades
Rotation Speed500-3000 RPM
Static Pressure0.1-2.5 inH₂O
Airflow Capacity10-5000 CFM

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 13349, DIN 24163

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Imbalance causing vibration
  • Fatigue failure from cyclic loading
  • Corrosion in humid environments
  • Material degradation at high temperatures
FMEA Triads
Trigger: Material fatigue from continuous operation
Failure: Crack propagation leading to blade fracture
Mitigation: Implement regular NDT inspections and use fatigue-resistant alloys
Trigger: Improper dynamic balancing
Failure: Excessive vibration damaging bearings
Mitigation: Precision balancing during manufacturing and install vibration sensors

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1 mm for blade profile, ±0.5° for pitch angle
Test Method
Laser Doppler anemometry for airflow verification; modal analysis for vibration testing

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 Impeller/Blades

Manufacturer profiles associated with Impeller/Blades.

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The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.
Shaft Bearing
Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.
Seal Groove
Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What is the difference between centrifugal and axial impeller designs?

Centrifugal impellers redirect airflow perpendicular to the rotation axis for higher pressure, while axial designs move air parallel to the axis for higher volume at lower pressure.

How do blade angle and curvature affect fan performance?

Blade angle determines airflow direction and efficiency; increased curvature enhances pressure generation but may reduce flow rate if overly aggressive.

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.

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