Industry-Verified Manufacturing Data (2026)

Rotating Anode (Target)

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Rotating Anode (Target) used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Rotating Anode (Target) is characterized by the integration of Anode Disc/Target and Rotor. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tungsten (W) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A rotating metal target in an X-ray tube that generates X-rays when bombarded by electrons.

Product Specifications

Technical details and manufacturing context for Rotating Anode (Target)

Definition
The rotating anode (target) is a critical component within an X-ray tube, typically made of tungsten or a tungsten-rhenium alloy. It serves as the focal point where high-energy electrons from the cathode collide, producing X-rays through bremsstrahlung and characteristic radiation. Its rotation distributes heat over a larger surface area, allowing for higher power loads and longer tube life compared to stationary anodes.
Working Principle
The anode is mounted on a rotor and spins at high speeds (typically 3,000-10,000 RPM). When electrons from the cathode filament strike the angled target surface (the focal track), their kinetic energy is converted into X-rays (approximately 1%) and heat (approximately 99%). The rotation spreads the intense electron bombardment over a circular annulus, preventing localized overheating and melting.
Common Materials
Tungsten (W), Tungsten-Rhenium alloy (W-Re), Molybdenum (Mo) for the rotor/stem
Technical Parameters
  • Target diameter, typically ranging from 70mm to 200mm for medical and industrial tubes. (mm) Per Request
Components / BOM
  • Anode Disc/Target
    The metal disc (usually tungsten) that emits X-rays upon electron impact.
    Material: Tungsten or Tungsten alloy
  • Rotor
    The rotating assembly, often made of copper and molybdenum, that spins the anode disc via magnetic induction from the stator.
    Material: Copper, Molybdenum
  • Stem
    Connects the anode disc to the rotor, providing thermal and mechanical support.
    Material: Molybdenum
  • Focal Track
    The specific ring-shaped area on the anode disc where electrons are focused and X-rays are generated.
    Material: Tungsten-Rhenium alloy
Engineering Reasoning
3000-10000 RPM (rotational speed), 40-150 kV (electron acceleration voltage), 0.1-1.0 mm² (focal spot area)
Melting point of tungsten-rhenium alloy (3695 K), centrifugal stress exceeding 250 MPa at 12000 RPM, anode surface temperature exceeding 2000°C
Design Rationale: Thermal fatigue from cyclic heating (electron bombardment) and cooling (radiation/convection), creep deformation at high temperatures, electron backscatter erosion at >150 kV
Risk Mitigation (FMEA)
Trigger Insufficient bearing lubrication causing increased friction coefficient >0.15
Mode: Rotational speed drop below 2800 RPM leading to localized melting
Strategy: Forced oil circulation system with 0.5 L/min flow rate and temperature monitoring at 60°C threshold
Trigger Electron beam defocusing due to magnetic field interference >5 mT
Mode: Non-uniform heat distribution creating thermal stress gradients >500 MPa
Strategy: Mu-metal shielding with 10 mm thickness and active field cancellation coils

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rotating Anode (Target).

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: High vacuum (10^-4 to 10^-7 Torr)
other spec: Rotation speed: 3000-10000 RPM, Electron beam power: 10-150 kW
temperature: Ambient to 1500°C (operating surface temperature)
Media Compatibility
✓ High vacuum environments ✓ Medical X-ray imaging systems ✓ Industrial non-destructive testing equipment
Unsuitable: Atmospheric pressure with oxygen exposure (causes oxidation and rapid degradation)
Sizing Data Required
  • Required X-ray energy spectrum (keV range)
  • Maximum continuous power dissipation (kW)
  • Required focal spot size (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Repeated rapid heating and cooling cycles during X-ray generation cause differential thermal expansion between the tungsten target surface and copper substrate, leading to stress concentration and crack initiation at grain boundaries.
Target surface roughening and pitting
Cause: Electron bombardment during operation causes localized melting and vaporization of tungsten material, exacerbated by poor vacuum conditions or contaminants that accelerate material loss through sputtering and evaporation.
Maintenance Indicators
  • Audible arcing or popping sounds during operation indicating vacuum degradation or electrical discharge
  • Visual inspection reveals dark spots, discoloration, or visible cracks on the anode surface through inspection ports
Engineering Tips
  • Implement controlled ramp-up and cool-down procedures to minimize thermal shock, using manufacturer-specified power curves and ensuring proper cooling system operation before and after high-load cycles.
  • Maintain optimal vacuum integrity through regular leak testing and proper handling procedures, ensuring all seals and gaskets are in specification and using appropriate vacuum-compatible materials during maintenance.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASTM E1251-17a - Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry CE Marking - Directive 2014/35/EU (Low Voltage Directive)
Manufacturing Precision
  • Bore diameter: +/-0.01 mm
  • Surface roughness (Ra): 0.4 μm maximum
Quality Inspection
  • Dimensional verification with CMM (Coordinate Measuring Machine)
  • Ultrasonic testing for internal defects

Factories Producing Rotating Anode (Target)

Verified manufacturers with capability to produce this product in China

✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Feb 15, 2026
★★★★★
"Found 44+ suppliers for Rotating Anode (Target) on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Project Engineer from Canada Feb 12, 2026
★★★★☆
"The technical documentation for this Rotating Anode (Target) is very thorough, especially regarding technical reliability. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Feb 09, 2026
★★★★★
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Rotating Anode (Target) so far."
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.”

10 sourcing managers are analyzing this specification now. Last inquiry for Rotating Anode (Target) from India (59m ago).

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Frequently Asked Questions

What are the primary materials used in rotating anode targets?

Rotating anode targets are primarily made from tungsten (W) or tungsten-rhenium (W-Re) alloys for the anode disc/target, with molybdenum (Mo) commonly used for the rotor and stem components to withstand high thermal and mechanical stress.

How does a rotating anode improve X-ray tube performance?

The rotating design distributes electron bombardment across a larger focal track area, reducing localized heat buildup and allowing higher power operation, longer tube life, and more stable X-ray output for precision manufacturing applications.

What industries use rotating anode X-ray tubes?

Computer, electronic and optical product manufacturing relies on rotating anode X-ray tubes for quality control, material analysis, semiconductor inspection, and non-destructive testing where high-resolution imaging is critical.

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.

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