WB-W400 AC/DC Pulse Professional CO₂/MIG/MAG Welding Machines

OTC DAIHEN W400 AC/DC Pulse Welder

The Welbee Inverter W400 is a high-performance digital welding machine from OTC DAIHEN, featuring an innovative AC pulse welding method that delivers high-efficiency, high-quality welds on ultra-thin plates. The refined double-pulse technology further reduces defects, resulting in smoother, cleaner beads. Capable of welding aluminum, mild steel, and stainless steel, the W400 handles everything from thin sheets to medium plates. With a 33% increase in output current compared to previous models, it reaches 400A max, easily tackling medium-plate applications.

✨ Key Technology Advantages

• Innovative AC pulse welding — High-quality, efficient welding on ultra-thin plates with precise heat control.

• Refined double-pulse technology — Minimizes porosity and spatter, producing dense, attractive beads.

• Multi-material capability — Perfect for aluminum, mild steel, stainless steel, and more.

• 33% higher output current — 400A max, covering thin to medium plates.

• Wide wire feeder selection — Choose CM-7402 (steel), CMA-7402 (aluminum air-cooled), CMAW-7402 (aluminum water-cooled).

• Diverse torch options — WT3510-SD (steel), WTA300-SD (aluminum air-cooled), WTAW400-SD (aluminum water-cooled).

• Full digital control — Welbee technology ensures arc stability and fine-tuned welding parameters.

🔧 Primary Applications

Automotive lightweight components, motorcycle frames, aluminum boats, rail vehicles, precision sheet metal, general fabrication.

📊 OTC DAIHEN W400 Technical Specifications & Accessories