LGK-300HD
LGK-300HD is a high-performance heavy-duty plasma cutting system for severe industrial applications, combining 300A output, 100% duty cycle at 40°C, non-contact arc ignition, and air- or water-cooled torch flexibility for continuous high-load cutting.
A heavy-duty plasma platform for large fabrication lines, shipbuilding work, structural steel production, and industrial users who need maximum output with continuous-duty reliability.
LGK-300HD Technical Specifications
Published electrical, cutting, efficiency, and cooling data for the LGK-300HD heavy-duty plasma cutting system.
Heavy-duty plasma power for the most demanding industrial cutting environments.
LGK-300HD is designed for users who need far more than standard workshop output, delivering stronger section capacity, continuous-duty operation, and more robust ignition and cooling options for serious production use.
300A cutting capacity for demanding structural and production work
The official page positions LGK-300HD for severe industrial environments where 300A output and thicker carbon-steel capacity are required for daily throughput.
100% duty cycle at 40°C for uninterrupted heavy cutting demand
The published duty-cycle rating supports continuous production cutting where high workload and reduced interruption are both critical.
High 92% efficiency with 0.92 power factor for better operating economy
The official electrical data emphasizes improved efficiency and power factor, helping reduce operating losses in high-load industrial applications.
Non-contact arc ignition supports consistent starts and consumable life
Its non-contact arc ignition system is designed for dependable heavy-duty operation while helping reduce wear associated with more aggressive start methods.
Air- or water-cooled torch options expand application coverage
The listed torch-cooling options make the system easier to configure for different duty levels, manual cutting methods, or mechanized industrial setups.
Standard product positioning
- Model: LGK-300HD
- Type: heavy-duty plasma cutting system
- Input: 3~380±15% 50/60
- Arc start: non-contact ignition
- Gas: compressed air
Where this model works best
- Heavy metal fabrication and manufacturing
- Shipbuilding and maritime construction
- Large-scale structural steel work
- Heavy equipment repair and maintenance
Built for industrial air systems and automated cutting integration
LGK-300HD makes the most sense in facilities with stable three-phase input, 0.5-0.8 MPa compressed air, and cutting operations that demand heavy-duty manual or CNC deployment.
Published carbon-steel references
- Quality cut thickness: 1-50
- Severance cut thickness: 100
- Output current adjust range: 60-300
- Gas supply pressure: 0.5-0.8 MPa
Choose built-in compressor, professional IGBT, or heavy-duty HD plasma systems by air supply, output, and continuous-duty demand.
This plasma lineup combines integrated CUT-B machines for mobile cutting and repair with LGK inverter and heavy-duty HD systems for higher-output fabrication, structural work, maintenance, and CNC-ready industrial applications.
All-in-one plasma plus MMA machines for portable service work and workshop flexibility
- CUT-80B prioritizes dual-voltage mobility and lighter plate cutting in a more compact all-in-one format.
- CUT-100B and CUT-120B raise three-phase output for thicker sections while retaining built-in and external air support.
- Choose this group when independent air supply, field deployment, and combined cutting plus stick capability matter most.
External-air industrial plasma cutters for fabrication shops, maintenance teams, and medium to heavy plate work
- LGK-63IGBT covers compact 63A cutting with divided-voltage output options and a smaller 26 kg machine body.
- LGK-120IGBT and LGK-200IGBT extend the range for 100% duty cycle production cutting with higher-quality cut capacity.
- Choose this group when dedicated compressed air, industrial inverter efficiency, and manual or CNC-ready cutting are the main priorities.
Maximum-output plasma platforms for thick carbon steel, longer cycles, and demanding production environments
- LGK-300HD and LGK-400HD deliver 100% duty cycle at 40°C with non-contact arc ignition for severe industrial duty.
- These models support thicker manual or CNC cutting with air- or water-cooled torch options and compressed-air supply.
- Choose this group when thicker plate, continuous operation, and high-output structural or shipyard work are the main requirements.
Verify package scope and application suitability before order confirmation.
Published specifications, standard delivery scope, and accessory ratings are for reference only and may change without notice. Included plasma torch assemblies, work return clamps, air regulators, filters, air hoses, interconnection leads, CNC interface cables, built-in compressor components, water-cooling units, plugs, consumables, and other accessories may vary by model, package, and destination market. Before supply, confirm the required plasma cutting application, any auxiliary MMA function where applicable, input power, output current, duty cycle, air source configuration, torch or lead length, target cut thickness, and applicable local compliance requirements for the intended application.