Cutting Torch for CNC Plasma Cutting Systems

Product Specifications

Technical details and manufacturing context for Cutting Torch

Definition

This cutting torch is a precision-engineered component of a heavy-duty CNC plasma cutting machine. Its primary function is to generate, constrict, and direct the high-temperature plasma arc used to cut through conductive materials. The torch houses the electrode, nozzle, and gas distribution system, which work together to create a focused plasma stream for precise material separation. The torch is designed for use in fabricated metal product manufacturing, where it enables accurate and efficient cutting of various metals. It is available in a range of configurations to suit different cutting applications, with parameters such as rated current, duty cycle, gas pressure, cooling flow rate, torch length, weight, maximum cutting thickness, cutting tolerance, operating temperature, IP rating, torch body material, and insulation voltage. These parameters are provided as reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The torch is constructed from materials including copper alloy, tungsten, ceramic, and stainless steel, ensuring durability and performance in demanding industrial environments. The torch body is typically made of aluminum alloy 6061-T6 for effective heat dissipation. It operates within a temperature range of -10°C to 50°C and has an IP rating of IP54 to IP65, depending on the environment. The insulation voltage is rated at 1000 V, withstanding high-frequency ignition. The cutting tolerance is ±0.5 mm for straight cuts on mild steel, and the maximum cutting thickness ranges from 25 to 50 mm, depending on current and gas. The torch length varies from 150 to 300 mm, and the weight ranges from 0.8 to 1.5 kg. The rated current is 100–200 A, with a duty cycle of 60–100% at rated current, lower for continuous heavy use. Gas pressure should be maintained at 0.4–0.6 MPa to ensure a stable arc, and cooling flow rate should be 1.5–2.5 L/min to prevent electrode overheating. These specifications are critical for achieving optimal cutting performance and longevity of the torch components. Always consult the manufacturer's documentation for exact values and compliance with relevant standards such as IEC 60974-7, IEC 60974-1, ISO 9013, IEC 60529, and ASTM B211.

Working Principle

Electrical energy ionizes compressed gas (typically air, oxygen, nitrogen, or argon-hydrogen mixtures) between the electrode and nozzle, creating a plasma arc at temperatures exceeding 20,000°C. This superheated plasma jet melts and blows away material along the programmed cutting path. The torch's design ensures precise constriction and direction of the arc, enabling clean and accurate cuts. The gas flow also serves to cool the torch components and remove molten metal from the cut zone.

Common Materials

Copper alloy, Tungsten, Ceramic, Stainless steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Current	100–200 A	Determines cutting thickness capabilityIEC 60974-7
Duty Cycle	60–100 %	At rated current; lower for continuous heavy useIEC 60974-1
Gas Pressure	0.4–0.6 MPa	Too low causes unstable arc
Cooling Flow Rate	1.5–2.5 L/min	Insufficient cooling shortens electrode life
Torch Length	150–300 mm	Affects reach and maneuverability
Weight	0.8–1.5 kg	Heavier torches may require counterbalance
Max Cutting Thickness	25–50 mm	Depends on current and gas
Cutting Tolerance	±0.5 mm	For straight cuts on mild steelISO 9013
Operating Temperature	-10–50 °C	Outside range may affect seals and electronics
IP Rating	IP54–IP65	Higher rating for dusty or wet environmentsIEC 60529
Torch Body Material	6061-T6	Aluminum alloy for heat dissipationASTM B211
Insulation Voltage	1000 V	Withstands high-frequency ignitionIEC 60974-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Electrode Part
Generates electrical arc and emits electrons to ionize gas

Material: Tungsten or hafnium
Nozzle
Constricts and focuses plasma arc, controls gas flow

Material: Copper alloy
Swirl Ring Part
Creates vortex gas flow for arc stabilization and nozzle protection

Material: Ceramic or high-temperature plastic
Retaining Cap Part
Secures nozzle and provides electrical insulation

Material: Ceramic or high-temperature plastic
Torch Body
The head itself: holds the consumables, carries the gas and current, and sets the arc geometry.

Applied To / Applications

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

Heavy-Duty CNC Plasma Cutting Machine

View system integration details

Manufacturers of Cutting Torch

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Frequently Asked Questions

What materials are used in the cutting torch?

The torch is constructed from copper alloy, tungsten, ceramic, and stainless steel. The torch body is typically made of aluminum alloy 6061-T6 for heat dissipation.

What is the maximum cutting thickness?

The maximum cutting thickness ranges from 25 to 50 mm, depending on the current and gas used. This is a reference range; consult the manufacturer for specific model capabilities.

What gas pressure is required for stable operation?

Gas pressure should be maintained between 0.4 and 0.6 MPa. Too low pressure can cause an unstable arc.

What is the duty cycle of the torch?

The duty cycle is 60–100% at rated current, but it may be lower for continuous heavy use. This indicates the percentage of time the torch can operate at rated current within a 10-minute period.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 120 psi (8.3 bar) gas supply pressure
flow rate:	30-150 SCFH (standard cubic feet per hour) for plasma gas, 10-50 SCFH for shield gas
duty cycle:	60-100% continuous duty at rated output
arc voltage:	90-200 VDC depending on material thickness and cutting speed
temperature:	Ambient to 60°C (operating), -20°C to 80°C (storage)

Cutting Torch

Product Specifications

Applied To / Applications

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards