TIG Welding Machine

OTC DAIHEN AVP360 / AVP500 Dual-Inverter AC/DC Pulse TIG Welders (Discontinued)

The AVP360 and AVP500 are high-performance dual-inverter AC/DC pulse TIG welders from OTC DAIHEN. Dual-inverter high-speed control produces an ideal square wave AC current with exceptional arc stability. Multiple current waveforms are available: AC sine wave, AC square wave, DC, and AC/DC hybrid wave, catering to various materials and processes. The wide pulse frequency range (low 0.5-15Hz, mid 10-500Hz) ensures adaptability. Broad application scope covers diverse materials (aluminum, magnesium, stainless steel, titanium alloys), thicknesses, and joint types. Although discontinued, their technology set the foundation for later models.

✨ Key Technology Advantages

• Dual‑inverter high‑speed control — Ideal square wave AC, extremely stable arc.

• Multiple waveform selection — AC sine, AC square, DC, AC/DC hybrid.

• Wide pulse frequency range — Low 0.5-15Hz, mid 10-500Hz for diverse processes.

• Broad applicability — Various materials, thicknesses, joints; high‑quality welding.

• Rugged & durable — Classic inverter technology for harsh environments.

🔧 Primary Applications

Aerospace, rail transportation, automotive manufacturing, pressure vessels, pipe welding, precision instruments – TIG welding of aluminum alloys, magnesium alloys, titanium alloys, stainless steel, copper, and alloy steels.

📊 OTC DAIHEN AVP360 / AVP500 Technical Specifications Comparison