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CO₂/MAG/MIG Welding Machine
  • WB-P400 Intelligent pulse - Product image
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WB-P400 Intelligent pulse Professional CO₂/MIG/MAG Welding Machines

OTC DAIHEN P400 Digital Pulse MIG Welder

The OTC DAIHEN P400 features ultra-high-speed current/voltage sampling and precise waveform control, delivering high-quality welding on carbon steel, stainless steel, and aluminum. Equipped with OTC's proprietary CBT-EX ultra-low spatter control, it reduces CO₂ welding spatter by approximately 60%, significantly lowering gas consumption and post-weld grinding costs—an ideal upgrade from conventional inverter MAG machines.

Key Features & Benefits

  • ⚡ CBT-EX Ultra-Low Spatter: CO₂ welding spatter approaches MAG levels, minimizing cleanup and saving costs.

  • 🌀 Aluminum Waveform Control: Produces beautiful fish-scale beads comparable to TIG welding.

  • 📈 Vertical-Up Optional Software: Simplifies vertical welding of thick plates.

  • 🔩 Dual Stainless Steel Modes: Standard austenitic + optional ferritic mode for broader alloy compatibility.

  • 💡 Smart Quality Management: USB port for importing/exporting welding conditions and results—full traceability.

  • 🚀 High-Speed Stability: Stable voltage and consistent bead width even at high travel speeds.

  • 🛡️ Robust & Durable: Enhanced dust-proof design extends maintenance intervals in harsh environments.

  • 🧩 Extensive Options: Special material software (high-strength steel, galvanized) and integrated water-cooled cart available.

The P400 integrates seamlessly with OTC robots (e.g., FD series) for automated high-efficiency welding. It is widely used in automotive parts, motorcycle frames, pipe fabrication, metal furniture, and aluminum processing.

Technical Specifications

OTC DAIHEN P400 Standard Package
ModelP400
Power SourceModelWB-P400
Input VoltageV, Hz3-phase, 380V±10%, 50/60Hz
Rated Input CapacitykVA19.1 (17.5kW)
Output Current RangeA30~400
Rated Duty Cycle%60 (DC) / 50 (Pulse)
Dimensions (W×D×H)mm395×710×640
Weightkg60
Wire FeederModelCM-7402CMA-7402
(Steel/SS air-cooled)(Aluminum air-cooled)
TorchModelWT3510-SDWTA300-SD
Gas RegulatorModelW-50FL-Ar / W-198-220V (for CO₂ ultra-low spatter)
Welding CableModelBKPDT-6002

Ordering & Support

We are an authorized OTC DAIHEN distributor. All machines and parts are 100% genuine. For purchasing OTC DAIHEN WB-P400 or any accessories, please contact:

📞 Phone / Whatsapp/WeChat: +86 180-9663-1656