TIG Welding Machine

OTC DAIHEN DT315P Digital Inverter DC TIG/Stick Welder

The DT315P is a fully digital DC TIG/stick welder from OTC DAIHEN, featuring IGBT soft‑switching inverter technology with an incredible control speed of 80kHz for precise arc control. The power source stores 100 welding condition sets with key‑lock protection, ensuring repeatability and comprehensive weld data management. A wide selection of waveforms delivers excellent arc starting performance, stable arc, easy operation, and precise bead formation with reduced heat input. Dual arc starting methods — HF start and touch start — allow touch start without high‑frequency voltage, eliminating electromagnetic interference. Significantly smaller and lighter (only 30kg), it offers enhanced operability and visibility, making it ideal for precision welding and on‑site work.

✨ Key Technology Advantages

• IGBT soft‑switching inverter — 80kHz high‑speed control, precise and stable arc.

• 100 job memory — On‑board storage with key‑lock, easy parameter management.

• Rich waveform selection — Adapts to various processes, excellent arc starting.

• Dual arc starting — HF / touch start, touch start with no EMI.

• Compact & lightweight — Only 30kg, easy to move, good visibility.

• Wide current range — TIG 4-315A, stick 10-250A (3‑phase).

• 3‑phase / single‑phase selectable — Adapts to different site power conditions.

🔧 Primary Applications

Precision instruments, mold making, stainless steel fabrication, pipe welding, maintenance – DC TIG welding of stainless steel, carbon steel, alloy steel, copper, titanium, and stick welding.

📊 OTC DAIHEN DT315P Technical Specifications