This manual provides safety instructions, installation steps, operating procedures, specifications and maintenance guidelines for the Huayuan LGK series…
The LGK-100, LGK-120, LGK-160 and LGK-200 are IGBT‑inverter air plasma cutters designed for cutting carbon steel, alloy steel and non‑ferrous metals. They feature high reliability, stable cutting current, overload protection and optional water‑cooled torches.
The document covers user safety precautions, required working environment, detailed specifications, system description, installation, operation, cutting process basics, routine maintenance, troubleshooting and a complete parts list with wiring diagrams. This manual is written in Chinese.
| Rated Input Voltage | 3–380 V / 50 Hz |
|---|---|
| Rated Input Capacity | LGK‑100: 17.8 kVA, LGK‑120: 22.4 kVA, LGK‑160: 32.2 kVA, LGK‑200: 46.7 kVA |
| Rated Output Current | LGK‑100: 100 A, LGK‑120: 120 A, LGK‑160: 160 A, LGK‑200: 200 A |
| Rated Output Voltage | LGK‑100: 120 V, LGK‑120: 128 V, LGK‑160: 144 V, LGK‑200: 160 V |
| Load Duty Cycle | 100 % (continuous operation) |
| Maximum Cutting Thickness (steel) | LGK‑100: 40 mm, LGK‑120: 45 mm, LGK‑160: 55 mm, LGK‑200: 65 mm |
| Typical Cutting Thickness (steel) | LGK‑100/120: 0.3–22 mm, LGK‑160/200: 1–45 mm |
| Cooling Method | Air‑cooled (LGK‑100/120) or Air‑/Water‑cooled (LGK‑160/200) |
| Enclosure Protection Rating | IP21S |
| Weight | LGK‑100: 45 kg, LGK‑120: 46 kg, LGK‑160: 65 kg, LGK‑200: 82 kg |
The cutter’s chassis must be connected to a reliable grounding line or grounding bolt as indicated in the manual before power is applied.
The machine can operate between –10 °C and +40 °C; for transport and storage the allowed range is –20 °C to +55 °C.
The thermal protection activates, the over‑heat indicator lights, the cutter stops outputting current, and it resumes operation only after the temperature falls below the set point and the indicator turns off.