LGK-400HD
LGK-400HD is an industrial heavy-duty plasma cutting system built for the most demanding applications, combining 400A output, 100% duty cycle at 40°C, non-contact arc ignition, and higher efficiency for continuous large-scale cutting performance.
The highest-output plasma platform in this group, intended for extreme production environments where maximum cutting power, reliability, and continuous-duty performance are essential.
LGK-400HD Technical Specifications
Published electrical, cutting, efficiency, and cooling data for the LGK-400HD heavy-duty plasma cutting system.
Maximum heavy-duty plasma output for the toughest large-scale production cutting.
LGK-400HD is positioned at the top end of this plasma family, intended for industrial users who need the highest output, the thickest carbon-steel cutting range, and dependable continuous operation in severe production environments.
400A cutting capacity for the most demanding heavy industrial applications
The official page presents LGK-400HD as a maximum-duty plasma system for large fabrication, shipbuilding, heavy machinery, and industrial manufacturing environments.
100% duty cycle at 40°C supports constant high-load operation
The machine is built for production environments where continuous operation is essential and output stability must be maintained under serious cutting demand.
93% efficiency and 0.92 power factor support optimized operating performance
The published electrical data highlights improved efficiency and power utilization, helping reduce operational losses in large industrial cutting systems.
60 quality cut and 120 severance thickness on carbon steel
Official cutting capacity moves beyond mid-heavy industrial work and into very high-output applications where thicker plate and faster heavy cutting matter.
Non-contact arc ignition with flexible torch cooling for severe-duty use
The combination of non-contact ignition and air- or water-cooled torch options supports reliable starts, longer consumable life, and more adaptable industrial system configuration.
Standard product positioning
- Model: LGK-400HD
- 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 industrial metal fabrication and manufacturing
- Shipbuilding and large maritime construction
- Heavy-duty structural steel work
- Heavy machinery production and repair
Built for extreme-duty air systems and high-volume production lines
LGK-400HD is best suited to facilities with stable three-phase industrial power, 0.5-0.8 MPa compressed air, and continuous cutting operations that justify maximum-output plasma equipment.
Published carbon-steel references
- Quality cut thickness: 1-60
- Severance cut thickness: 120
- Output current adjust range: 60-400
- 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.