Structured Manufacturing Data (2026)

Blade Assembly

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Blade Assembly used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Blade Assembly is characterized by the integration of Blade and Pivot Pin/Bearing. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A set of blades arranged in a frame that controls airflow, light, or visibility in dampers and louvers.

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Product Specifications

Technical details and manufacturing context for Blade Assembly

Definition
The blade assembly is the core functional component within dampers and louvers, consisting of multiple blades mounted in a frame that can be adjusted to regulate airflow, control light penetration, or provide privacy. In HVAC systems, it modulates air volume; in architectural applications, it manages sunlight and visibility.
Working Principle
Blades are mounted on pivots within a frame. Manual levers, motorized actuators, or linkage systems rotate the blades simultaneously to change their angle relative to the airflow or light direction, thereby controlling the passage of air or light through the assembly.
Common Materials
Aluminum, Galvanized Steel, Stainless Steel
Technical Parameters
  • Overall dimensions (width x height) and blade spacing (pitch) (mm) Customizable
Components / BOM
  • Blade Part
    Primary element that physically obstructs or directs airflow/light
    Material: Aluminum/Steel
  • Pivot Pin/Bearing Part
    Allows individual blades to rotate within the frame
    Material: Stainless Steel/Brass
  • Linkage Rod Part
    Connects all blades to ensure simultaneous rotation
    Material: Steel
  • End Frame/Channel Part
    Structural frame that holds the blade assembly together
    Material: Galvanized Steel/Aluminum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Blade Assembly.

industrial damper blade assembly louver blade assembly for airflow control stainless steel blade assembly for dampers aluminum blade assembly with linkage rod galvanized steel louver blade set

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Dampers / Louvers
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Dampers/Regulators
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1.5 bar differential
flow rate: 0-15 m/s air velocity
temperature: -40°C to 150°C
slurry concentration: Not applicable - designed for clean air/gas applications
Media Compatibility
✓ HVAC air handling systems ✓ Industrial ventilation ducts ✓ Clean room environmental controls
Unsuitable: Abrasive particulate-laden environments (e.g., cement dust, sand blasting exhaust)
Sizing Data Required
  • Required airflow volume (m³/h)
  • Available installation space dimensions
  • System static pressure (Pa)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic stress from rotational forces and vibration, often exacerbated by material defects, improper heat treatment, or stress concentrations at blade root or trailing edges.
Corrosion pitting
Cause: Exposure to corrosive environments (moisture, chemicals, salt), inadequate protective coatings, or galvanic corrosion due to dissimilar metals in assembly.
Maintenance Indicators
  • Unusual vibration or imbalance during operation (audible/measurable)
  • Visible cracks, pitting, or material loss on blade surfaces (visual inspection)
Engineering Tips
  • Implement regular non-destructive testing (NDT) like dye penetrant or ultrasonic inspection to detect subsurface defects before catastrophic failure.
  • Optimize operating parameters to avoid resonant frequencies and ensure proper alignment with mating components to minimize stress concentrations.

Compliance & Manufacturing Standards

Reference Standards
ISO 1940-1:2003 - Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state ANSI B94.55M-1985 (R2016) - Specifications for the Design of Industrial Knives and Blades DIN 3962-2:1978 - Tolerances for cylindrical gear teeth; tolerances for tooth thickness and backlash
Manufacturing Precision
  • Bore diameter tolerance: ±0.01 mm
  • Blade edge straightness: 0.05 mm per 100 mm length
Quality Inspection
  • Dye Penetrant Test for surface crack detection
  • Hardness testing (Rockwell C scale) to verify material properties

Factories Producing Blade Assembly

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 materials are available for blade assemblies in machinery manufacturing?

Our blade assemblies are available in aluminum for lightweight applications, galvanized steel for corrosion resistance, and stainless steel for harsh environments.

How do blade assemblies control airflow in industrial dampers?

Blade assemblies consist of multiple blades arranged in a frame that can be adjusted via linkage rods and pivot pins to regulate airflow direction and volume in dampers and louvers.

What components are included in a typical blade assembly BOM?

A complete blade assembly includes blades, end frames/channels for structural support, linkage rods for synchronized movement, and pivot pins or bearings for smooth rotation.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment Manufacturing.

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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