INDUSTRY COMPONENT

Fixed Electrode

Stationary electrode component in spark gap assemblies for controlled electrical discharge applications.

View Specifications

Component Specifications

Definition
A fixed electrode is a precisely manufactured conductive component designed to maintain a stable position within a spark gap assembly, serving as one terminal for controlled electrical discharge processes. It provides consistent electrical contact and gap maintenance for applications requiring precise spark generation, such as in EDM machining, ignition systems, or surge protection devices.
Working Principle
The fixed electrode establishes a controlled gap distance with a movable or opposing electrode. When voltage exceeds the dielectric strength of the gap medium, electrical discharge occurs across the gap, with the fixed electrode providing stable geometry and electrical characteristics for repeatable spark generation.
Materials
High-conductivity copper alloys (C11000, C10100), tungsten-copper composites (WCu10-WCu50), or silver-tungsten alloys for high erosion resistance; surface may feature specialized coatings (chromium, nickel) for enhanced durability.
Technical Parameters
  • Length 10-150 mm
  • Diameter 3-25 mm
  • Hardness 80-120 HB
  • Surface Finish Ra ≤ 0.8 μm
  • Thermal Conductivity ≥ 200 W/m·K
  • Operating Temperature -40°C to 300°C
  • Electrical Conductivity ≥ 90% IACS
Standards
ISO 12100, DIN 8580, IEC 60204

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fixed Electrode.

fixed electrode spark gap electrode EDM electrode stationary electrode electrical discharge component spark gap assembly part Fixed Electrode in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Spark Gap Assembly

A precision electrical component that creates a controlled spark discharge for ignition or timing purposes.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Electrical arcing causing component damage
  • Thermal degradation from repeated discharges
  • Erosion altering gap dimensions
  • Contamination affecting discharge consistency
FMEA Triads
Trigger: Excessive current density
Failure: Localized melting and pitting
Mitigation: Implement current limiting circuits and cooling systems
Trigger: Contaminant buildup on surface
Failure: Unstable discharge characteristics
Mitigation: Regular cleaning protocols and protective enclosures
Trigger: Thermal cycling stress
Failure: Micro-cracking and material fatigue
Mitigation: Use materials with matched thermal expansion coefficients and gradual thermal cycling

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.01 mm dimensional, ±0.005 mm concentricity
Test Method
Coordinate measuring machine verification, electrical resistance testing, spark gap consistency testing per IEC 60060

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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.

Related Components

pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems
Dust Collection Port
A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.
Sensor Element
Core sensing component in industrial smart sensor modules that converts physical parameters into electrical signals for process monitoring and control.

Frequently Asked Questions

What is the primary function of a fixed electrode in spark gap assemblies?

The fixed electrode maintains precise gap distance and provides stable electrical contact for controlled spark generation, ensuring consistent discharge characteristics in applications like EDM machining or electrical protection systems.

How does material selection affect fixed electrode performance?

Material choice determines erosion resistance, thermal conductivity, and electrical properties. Copper alloys offer excellent conductivity, while tungsten composites provide superior wear resistance in high-energy discharge applications.

What maintenance is required for fixed electrodes?

Regular inspection for erosion, cleaning to remove carbon deposits, and verification of dimensional tolerances. Replacement is needed when erosion exceeds 10% of original dimensions or surface degradation affects discharge consistency.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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.

Request Manufacturing Insight for Fixed Electrode

Fixed Die Half (Cover Die) Fixed Jaw