LGK-400IGBT Inverter Air Plasma Cutter

You are here: Home > Product > Inverter Air Plasma Cutting Machine > LGK-400IGBT Inverter Air Plasma Cutter

LGK-400IGBT Inverter Air Plasma Cutter

Inverter Air Plasma Cutting Machine

Inverter air plasma cutting machine LGK-400IGBT. Three-phase 380 V supply. Functions: Cut / Grid / Marking / Gouge. Design features - 100% duty cycle, suited to heavy industrial work - Current ramp-up technology that reduces torch consumable wear - Wide supply-voltage tolerance - Engineered dust-proof layout for high machine reliability - Compact, low-volume and lightweight construction, mountable on a CNC machine - Uses low-cost compressed air as the cutting gas, keeping running cost low - Accurate stepless presetting of cutting current - Plasma gas pressure detection and indication, plus a gas-test function for easy pressure setting - Automatic protection against over-temperature, over-voltage, under-voltage and phase loss Applications For manual and machine cutting of carbon steel, alloy steel and non-ferrous metals. Widely used in boiler and chemical plant construction, pressure-vessel fabrication, industrial power-plant installation, metallurgical and chemical construction, aerospace, automotive manufacturing and repair, and building decoration, and across all industries involving metal cutting. Why 400 A 400 A is the top of the LGK range, built for the thickest plate an air plasma system is asked to cut and for continuous gouging. It is a fixed installation: three-phase supply, a high-capacity compressor, water cooling and fume extraction are all part of the specification. Typical applications are heavy plate preparation, foundry and steel-mill maintenance, and shipbuilding.

« Back to Product Center

Key Features

Highest output in the LGK-IGBT range for the thickest air-plasma plate cutting
IGBT inverter main circuit designed for sustained maximum current
100% duty cycle on three-phase supply for continuous heavy industrial duty
Stepless current preset with ramp-up technology protecting torch consumables
Wide supply tolerance for demanding industrial power conditions
Plasma gas pressure detection and indication with gas-test function
Automatic over-temperature, over-voltage, under-voltage and phase-loss protection
Engineered dust-proof layout for harsh workshop environments

Typical Applications

Extra-heavy plate and special member cutting
Heavy machinery, mining and metallurgical equipment
Underwater cutting and large structural dismantling
Emergency rescue, demolition and large-scale scrap recovery

Selection & Setup Notes

400 A is our flagship air plasma class, aimed at extra-heavy plate, underwater cutting and large-scale dismantling. Such duties normally need a high-flow compressor, water-cooled torch and dedicated fixturing together — contact our engineers for a complete line package. See Contact and the full model range.

Standards & Further Reading

External reference: ISO 9013 — Thermal cutting classification — ISO 9013 defines the quality classes for thermal cut surfaces (perpendicularity, bevel, dross).

Frequently Asked Questions

Can the 400 A do underwater cutting?

Yes, with a dedicated underwater torch, insulation and safety measures, operated by trained personnel. A specific safety assessment must be completed first.

Will it cut 80 mm in one pass?

80 mm is around the top of the quality-cut band and needs ample pierce dwell, stable gas pressure and correct speed. For thicker sections, evaluate flame cutting or another process.