I. Basic Definition & Core Positioning

A plasma cutting machine is an efficient CNC metal processing equipment based on plasma arc technology. It generates high-temperature plasma flow through ionized gas to achieve fast and precise cutting of conductive metal materials.

- Core Architecture: Composed of a plasma power supply, CNC system, torch assembly, motion platform, workbench, and auxiliary systems, combining the advantages of high-speed cutting and precise control.
- Model Identification: Common models include 1325 (working area 1300mm×2500mm), 1530 (1500mm×3000mm), and 2040 (2000mm×4000mm), where the numbers represent "cutting width × length".
- Technical Value: Solves the pain points of low precision in traditional flame cutting and high cost in laser cutting. Realizes "high efficiency + precision" cutting of medium and thick metal plates, adapting to multi-scenario metal processing needs.
- Industry Position: Suitable for industries such as machinery manufacturing, automotive, shipbuilding, steel structure, and aerospace, covering metal cutting needs from small and medium-sized processing plants to large manufacturing enterprises.

II. Core Working Principle

1. Principle of Plasma Arc Generation

The plasma power supply outputs high-frequency and high-voltage electricity to ionize the gas (commonly compressed air, nitrogen, argon) between the torch and the metal material. The ionized gas forms a high-temperature plasma arc (temperature up to 8000~30000℃), which instantly melts the metal material. At the same time, high-speed airflow blows away the molten metal slag from the cutting surface to form a smooth cutting seam.

2. CNC Cutting Mechanism

- Path Control: The CNC system receives design files (DXF/PLT and other formats) and drives the motion platform to move the torch along the preset trajectory.
- Parameter Adaptation: Adjust plasma current, cutting speed, gas pressure and other parameters according to the metal material (carbon steel, stainless steel, aluminum alloy, etc.) and thickness.
- Precision Guarantee: The servo drive system + precision guide rails ensure the positioning accuracy of the torch, resulting in narrow and neat cutting seams.

III. Core System Components

System Components	Function Description
Plasma Power Supply	Core power source, outputting high-frequency and high-voltage electricity required for stable plasma arc, with power range of 30~200A (adapting to different cutting thicknesses).
CNC Control System	Industrial-grade controller supporting path editing, parameter setting, and cutting monitoring, compatible with multiple design file formats.
Torch Assembly	Includes core components such as electrodes, nozzles, and vortex rings, generating and confining plasma arcs, supporting quick replacement of consumables.
Motion Platform	Gantry or cantilever structure, paired with servo motor + ball screw + linear guide rails to achieve precise X/Y axis movement.
Cutting Workbench	Steel structure table equipped with slag collection grooves and magnetic suction fixing devices, adapting to metal plates of different sizes.
Auxiliary Systems	Including cooling system (cooling the torch), dust removal device (treating cutting fumes), regulated power supply, and safety guardrails.

IV. Key Technical Parameters (Standard Configuration)

Parameter Item	Typical Value Range
Working Area	1300×2500mm / 1530×3000mm / 2040×4000mm (customizable)
Cutting Accuracy	±0.1~±0.3mm/m
Maximum Cutting Thickness	Carbon steel: 1~50mm; Stainless steel: 1~30mm; Aluminum alloy: 1~25mm
Cutting Speed	1~10m/min (adjustable according to material and thickness)
Plasma Power Supply	30~200A (air plasma/fine plasma optional)
Applicable Gas	Compressed air (commonly used), nitrogen, argon, mixed gas
Power Requirement	AC 380V（The voltage can be customized） 50/60Hz, 30~80KW
Equipment Dimensions	Approximately 4000×3200×2000mm (length × width × height, slightly different by model)
Overall Weight	Approximately 1500~4000kg

V. Core Performance Advantages

1. High Cutting Efficiency, Suitable for Medium and Thick Plates
- Cutting speed is 2~3 times that of flame cutting, with particularly outstanding efficiency in cutting medium and thick carbon steel (10~20mm).
- No preheating required, cutting can be started immediately, greatly shortening the single-piece processing time and suitable for mass production.

2. Wide Material Adaptability, Strong Flexibility
- Can cut all conductive metals, including carbon steel, stainless steel, aluminum alloy, copper alloy, titanium alloy, etc.
- Can handle metal sheets as thin as 1mm and medium-thick plates up to 50mm, adapting to multi-specification processing needs.

3. Excellent Cutting Quality, Controllable Cost
- Narrow cutting seam (1~3mm), smooth edges without slag hanging, reducing subsequent grinding workload.
- Equipment procurement cost is only 1/3~1/2 of laser cutting machines, and consumables (electrodes, nozzles) have low costs, making long-term operation and maintenance economical.

4. Easy Operation, Strong Stability
- Visual operation of the CNC system, with preset cutting parameters for various metal materials, allowing new users to get started quickly.
- Sturdy and durable structure, adapting to continuous operation in industrial workshops, with low failure rate and simple maintenance.

VI. Typical Application Scenarios

1. Machinery Manufacturing Industry
- Blank cutting and special-shaped cutting of metal plates for machine tool accessories and engineering machinery parts.
- High-precision cutting of equipment frames and bases to ensure assembly accuracy.

2. Automotive & Shipbuilding Industry
- Mass cutting of automotive frames and chassis parts, adapting to standardized production.
- Medium-thick plate cutting of ship decks and hull structural parts, improving processing efficiency.

3. Steel Structure & Construction Industry
- Large-size metal plate cutting of factory steel structures and bridge components.
- Precision blanking of architectural decorative metal parts and curtain wall keels.

4. Aerospace & Electronics Industry
- Lightweight metal material cutting of aerospace components.
- Precision metal cutting of electronic equipment casings and radiators.

VII. Brief Operation Process

1. Design & Programming: Draw cutting graphics with CAD software, export DXF/PLT format files, import them into the CNC system and optimize the cutting path.
2. Material Preparation: Place the metal plate on the cutting workbench, fix it with magnetic suction or pressing strips to ensure flatness without displacement.
3. Parameter Debugging: Select corresponding cutting parameters (current, speed, gas pressure) according to the material and thickness.
4. Ignition & Cutting: Start the equipment, the torch generates a plasma arc, cuts according to the preset path, and monitors the cutting status in real time.
5. Finished Product Processing: After cutting, clean the small amount of slag on the workpiece surface and check the dimensional accuracy and edge quality.

With "high-temperature plasma arc + CNC precise control" as the core, plasma cutting machines perfectly balance the three core needs of "cutting efficiency, processing quality, and use cost". They have wide material adaptability, easy operation, and strong stability, which can not only meet the multi-variety and small-batch production of small and medium-sized processing plants but also adapt to the large-scale mass production of large manufacturing enterprises. They have become core equipment in the metal processing field and an ideal choice for machinery manufacturing, automotive, steel structure and other industries to achieve efficient digital processing.