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CO₂/MAG/MIG Welding Machine
  • DP500 Discontinued - Product image
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DP500 Discontinued Professional CO₂/MIG/MAG Welding Machines

OTC DAIHEN DP500 Digital Pulse Welder (Discontinued)

⚠️ Important Notice: The DP500 model is discontinued. For a comparable or upgraded replacement, please inquire about the WB-P500. This page is provided for reference for existing users.

The DP500 is a high-performance digital welding machine from OTC DAIHEN, featuring unique IGBT soft-switching inverter technology with an output frequency up to 80kHz. Capacitor discharge enhanced starting ensures 100% instantaneous stable arc ignition. The standard 4‑roll wire feeder with encoder feedback guarantees accurate and stable wire feeding. A built‑in double‑pulse welding program enables high‑quality welding of various materials. Optional pure argon stainless steel welding software addresses special process requirements for stainless steel welding. Equipped with OTC’s exclusive intelligent waveform controller, it achieves stable waveform control and improves weld quality. It exhibits excellent arc stability in low current ranges and high‑speed welding, delivering impressive weld quality on galvanized steel and stainless steel.

✨ Key Technology Advantages

  • Capacitor discharge enhanced starting — 100% instantaneous stable arc ignition.

  • 4‑roll encoder feedback wire feeder — Accurate and stable wire feeding for consistent arc.

  • Double‑pulse welding program — Standard for high‑quality multi‑material welding.

  • Pure argon stainless steel software (optional) — Solves special stainless steel welding challenges.

  • IGBT soft‑switching inverter — 80kHz high frequency for precise control and high efficiency.

  • Intelligent waveform controller — Stable waveform, improved weld quality.

  • Excellent low‑current and high‑speed stability — Stable arc in demanding conditions.

🔧 Primary Applications

Automotive manufacturing, motorcycle frames, steel structures, galvanized steel processing, stainless steel products, pipe welding – especially in automated lines demanding reliable arc starting and high weld quality.

📊 OTC DAIHEN DP500 Technical Specifications & Accessories

* Refer to official OTC DAIHEN datasheet for full details.
Series NameDP500
Power SourceModelDP-500
Input Voltage3-phase, 380V±10%, 50/60Hz
Welding Mode
DC PulseDC
Rated Input CapacitykVA17.8 (16.7kW)23.8 (22.2kW)
Output Current RangeA30~500
Rated Duty Cycle%100 (at 350A)60
Dimensions (W×D×H)mm300×653×595
Weightkg55
Wire FeederModelCMAW-7402CMAW-742
(Aluminum air/water-cooled)(Aluminum water-cooled)
Welding TorchModelWTA300-SDWTCAW-5002
WTAW400-SDWTGAW-5001
Gas RegulatorModelW-50FL-Ar
Welding CableModelBKPT-6002

🛒 Genuine OTC DAIHEN Parts · Professional Support

We are an authorized distributor of OTC DAIHEN welding equipment, supplying genuine machines and spare parts. The DP500 is discontinued; for the replacement model WB-P500 or any OTC parts, please contact us:

📞 Tel / WeChat / WhatsApp: +86 180-9663-1656

📧 Email: ahojotc@gmail.com
           Over 10 years in welding automation — 7×12 hours online, add our WeChat/WhatsApp for technical exchange.