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TIG Welding Machine

TIG Welding Machine

T500P DC Pulse

OTC DAIHEN T500P Intelligent Inverter DC Pulse TIG Welder

The T500P is an intelligent DC pulse TIG welder from OTC DAIHEN, featuring Welbee inverter technology. With a maximum output of 500A, it achieves high-efficiency welding while maintaining excellent stability in the low current range. The wide 2-500A output range allows a single power source to handle everything from ultra-thin sheets to thick plates. The built‑in welding setup navigation function automatically matches welding conditions, and the welding management function detects abnormalities early to ensure weld quality. Ideal for demanding applications in aerospace, pressure vessels, and pipe welding.

✨ Key Technology Advantages

  • 500A high output — High-efficiency welding for thick plates.

  • 2-500A wide current range — One machine covers ultra-thin to thick plates.

  • Welding setup navigation — Automatically matches welding conditions, simplifying setup.

  • Welding management function — Real-time monitoring, early abnormality detection.

  • Welbee full digital inverter technology — Precise arc control for superior weld quality.

  • 60% duty cycle — Suitable for long-duration continuous operation.

  • Compact & lightweight — Dimensions 395×710×640mm, weight only 61kg.

🔧 Primary Applications

Aerospace, pressure vessels, pipe welding, heavy machinery, stainless steel products, precision instruments – DC TIG welding of stainless steel, alloy steel, titanium alloys, copper, and other materials.

📊 OTC DAIHEN T500P Technical Specifications

* Refer to official OTC DAIHEN datasheet for full details.
Series NameWelbee Inverter T500P
Power SourceModelWB-T500P
Input Voltage380V
Rated Input CapacitykVA19.3 kVA 17.2 kW / 18.2 kVA 15.9kW
Rated Duty Cycle%60
Rated Output CurrentA500A / 400A
Rated Load VoltageV30V / 36V
Output Current RangeA2~500A / 10~400A
Max. No‑Load VoltageV70 / 77
Operating Temperature-10 ~ 40
Dimensions (W×D×H)mm395×710×640 (without eyebolt)
Weightkg61
Cable Lengthm4
Gas Flow RegulatorModelW-25FL-Ar
Rated Gas FlowL/min25

🛒 Genuine OTC DAIHEN Parts · Professional Support

We are an authorized distributor of OTC DAIHEN welding equipment, supplying genuine machines and spare parts. For inquiries about the T500P 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 for technical exchange.