Industry-Verified Manufacturing Data (2026)

Swirler

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Swirler 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 Swirler is characterized by the integration of Swirl Vane and Hub/Centerbody. In industrial production environments, manufacturers listed on CNFX commonly emphasize Nickel-based superalloy (e.g., Inconel) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A component within a gas turbine combustion chamber that imparts a swirling motion to the incoming air or air-fuel mixture.

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Product Specifications

Technical details and manufacturing context for Swirler

Definition
The swirler is a critical component in the combustion chamber of a gas turbine engine. Its primary function is to generate a controlled, high-intensity swirl in the incoming air or premixed air-fuel stream. This swirling motion creates a central recirculation zone (CRZ) that stabilizes the flame by anchoring it and promoting rapid mixing of fuel and air, which is essential for efficient, low-emission combustion.
Working Principle
Air or an air-fuel mixture is forced through angled vanes or passages within the swirler. This imparts angular momentum to the flow, creating a vortex. The resulting low-pressure region in the center of the vortex draws hot combustion products back upstream, creating a stable recirculation zone that continuously ignites the incoming fresh mixture, ensuring flame stability across a wide range of operating conditions.
Common Materials
Nickel-based superalloy (e.g., Inconel), Cobalt-based superalloy, Heat-resistant stainless steel
Technical Parameters
  • Swirl vane angle, a primary design parameter controlling the intensity of the swirl and the size/stability of the recirculation zone. (degrees) Customizable
Components / BOM
  • Swirl Vane
    The primary aerodynamic element that deflects the flow to create the swirling motion. Vanes are typically arranged circumferentially.
    Material: Nickel-based superalloy
  • Hub/Centerbody
    The central structure that supports the inner ends of the swirl vanes and often helps shape the central recirculation zone.
    Material: Nickel-based superalloy
  • Outer Casing/Shroud
    The outer annular structure that contains the swirling flow and interfaces with the combustion liner.
    Material: Heat-resistant stainless steel
Engineering Reasoning
0.5-3.0 bar pressure drop across component, 15-45 m/s axial velocity, 400-800 K inlet temperature
Structural failure at 950°C metal temperature (Ni-based superalloy limit), aerodynamic instability at swirl number >1.2, pressure drop exceeding 4.0 bar
Design Rationale: Thermal fatigue from cyclic heating (combustion chamber 1800K to swirler 800K gradient), creep deformation at sustained temperatures above 900°C, boundary layer separation at Reynolds number <5000
Risk Mitigation (FMEA)
Trigger Fuel nozzle coking deposits (carbon buildup >0.5mm thickness)
Mode: Swirl number reduction from 0.8 to <0.4, causing flame instability and combustion dynamics >200Pa RMS
Strategy: Integrated air-blast cleaning system with 2.0 bar purge cycles every 50 operating hours
Trigger Thermal barrier coating spallation (>10% surface area loss)
Mode: Metal temperature increase from 800K to 950K, leading to creep deformation >1.0mm radial displacement
Strategy: Plasma-sprayed yttria-stabilized zirconia coating with 300μm thickness and bond coat oxidation barrier

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Swirler.

Air Swirler Swirl Vane Assembly gas turbine combustion chamber swirler nickel superalloy swirler component swirl vane air fuel mixer heat resistant stainless steel swirler turbine combustion air swirler assembly

Applied To / Applications

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

Combustion Chamber (for gas turbines)
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 30 bar (435 psi) typical, can exceed 50 bar (725 psi) for specialized designs
flow rate: 0.5-50 kg/s (1.1-110 lb/s) air/fuel mixture, depending on turbine size
temperature: Up to 1500°C (2732°F) for advanced alloys, typical range 800-1200°C (1472-2192°F)
swirl number: 0.6-1.2 typical range for stable combustion
Media Compatibility
✓ Natural gas-air mixtures ✓ Syngas-air mixtures ✓ Kerosene-air mixtures
Unsuitable: High particulate-laden flows (e.g., untreated biomass syngas with ash/slag)
Sizing Data Required
  • Combustor thermal power (MW)
  • Air mass flow rate (kg/s)
  • Required swirl intensity (Swirl Number)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic thermal stress from rapid temperature changes in combustion processes, leading to material fatigue and crack propagation in swirler vanes or housing.
Corrosion and oxidation
Cause: Exposure to high-temperature combustion gases containing corrosive elements (sulfur, chlorine) or oxygen, degrading material integrity and altering aerodynamic surfaces.
Maintenance Indicators
  • Increased combustion instability or pulsation audible as irregular humming or rumbling from the burner/combustor
  • Visible flame pattern distortion or yellow-tipping observed through inspection ports, indicating disrupted airflow
Engineering Tips
  • Implement regular thermographic inspections to monitor thermal gradients and identify hot spots indicative of stress concentrations or blockage
  • Establish a preventive cleaning schedule using approved methods (dry ice blasting, chemical solvents) to remove carbon deposits and prevent airflow disruption without damaging surface coatings

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay) DIN EN 10204 - Metallic Products - Types of Inspection Documents
Manufacturing Precision
  • Bore diameter: +/-0.025 mm
  • Flatness of mounting surfaces: 0.05 mm
Quality Inspection
  • Dimensional verification using CMM (Coordinate Measuring Machine)
  • Material composition verification via XRF (X-ray Fluorescence) analysis

Factories Producing Swirler

Verified manufacturers with capability to produce this product in China

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✓ 92% Supplier Capability Match Found

P Procurement Specialist from United States Feb 20, 2026
★★★★★
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Swirler meets all ISO standards."
Technical Specifications Verified
T Technical Director from United Arab Emirates Feb 17, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Swirler arrived with full certification."
Technical Specifications Verified
P Project Engineer from Australia Feb 14, 2026
★★★★★
"Great transparency on the Swirler components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for Swirler from Thailand (31m ago).

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Frequently Asked Questions

What is the primary function of a swirler in gas turbine engines?

The swirler creates a controlled swirling motion in the incoming air or air-fuel mixture within the combustion chamber, which enhances mixing, stabilizes the flame, and improves combustion efficiency and temperature distribution.

Why are superalloys like Inconel used for swirlers?

Nickel-based superalloys (e.g., Inconel) and cobalt-based superalloys are used because they maintain strength and resist oxidation, creep, and thermal fatigue at the extreme temperatures (often exceeding 1000°C) inside gas turbine combustion chambers.

What are the main components of a swirler assembly?

A typical swirler assembly consists of three key parts: the hub or centerbody, the outer casing or shroud, and the swirl vanes. These work together to direct and impart the swirling motion to the airflow.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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