INDUSTRY COMPONENT

Electrode

Cutting torch electrode for plasma arc initiation and maintenance in metal fabrication.

Component Specifications

Definition
A consumable electrode component in a plasma cutting torch that initiates and sustains the plasma arc by conducting electrical current to the workpiece, typically made of high-temperature resistant materials to withstand extreme thermal and electrical conditions during metal cutting operations.
Working Principle
The electrode creates an electrical circuit with the workpiece through a pilot arc, which ionizes gas to form a plasma jet for cutting. It transfers high-frequency current to initiate the arc and maintains conductivity while resisting erosion from high temperatures and plasma gas flow.
Materials
Copper alloy with hafnium or tungsten insert, silver-plated for enhanced conductivity, with ceramic insulator housing.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Length25-50 mm
Diameter3-6 mm
Insert TypeHafnium/W2% Thorium
Thread TypeM5-M8
Voltage Range100-400 V DC
Cooling MethodGas or liquid
Current Rating20-200 A

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 9013, DIN 2310, AWS C5.2

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Electrical shock hazard
  • Thermal burns from hot components
  • Arc flash exposure
  • Toxic fume inhalation from material vaporization
FMEA Triads
Trigger: Overheating due to insufficient cooling
Failure: Electrode melting or premature wear
Mitigation: Monitor coolant flow and maintain proper gas pressure settings
Trigger: Contamination from moisture or oils
Failure: Unstable arc or failure to initiate
Mitigation: Use dry, clean gases and handle electrodes with clean gloves

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1 mm diameter, ±0.5 mm length
Test Method
Arc initiation test per ISO 9013, electrical resistance measurement, visual inspection for defects

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 Electrode

Manufacturer profiles associated with Electrode.

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Frequently Asked Questions

How often should cutting torch electrodes be replaced?

Replace electrodes every 50-200 cutting hours or when visible erosion exceeds 2 mm, depending on material thickness and amperage settings.

What causes premature electrode failure?

Common causes include incorrect gas pressure, excessive amperage, poor alignment, moisture contamination, or using incompatible consumables.

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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