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We've been moving these units into heavy for years now, and the first thing you'll notice is the duty cycle—it's 60% across the board, which means you can run the 400P model at 400 amps for six minutes out of ten without tripping thermal overload, and that's real-world tested, not just a spec sheet number.
Input voltage is your call between 220V and 380V single-phase, but honestly, if you're in shipbuilding or petrochemical, you're almost always on 380V anyway, and the input capasity climbs from 8.7 KVA on the TIG-200P up to 34.9 KVA on the 630P—roughly 53 amps at full draw, so make sure your shop's electrical service can handle the peak load or factor in a breaker upgrade.
The high-frequency pulse is what sets this apart for pipe welding and nuclear work, where you need that tight arc control on aluminum and stainles, and we've seen buyers push the AC frequency adjustment and clean width to dial in oxide removal without burning through thin-walled sections—it's basically a TIG-315P or TIG-400P that most shops go with for that kind of precision.
Cooling is forced air on the smaller units up to the 400P, but once you step to the 500P or 630P, you'll want water cooling (usually model comes with a water-cooled torch option, but check the order specs), and the insulation class H rating means the windings can take 180°C continuous without breaking down, which matters when you're welding in a refinery turnaround where ambient temps hit 40°C.
One thing buyers don't always ask about is the output no-load voltage—it's 58V on the 220V models and 62V on the 380V versions, and that's important for arc starts on dirty or painted surfaces in pipeline installations, but it also means you need to follow standard arc flash safety protocols, as the open-circuit voltage can give a nasty bite if you're not careful.
We usually have stock on the TIG-200P and TIG-315P, but the 500P and 630P are built to order in about 20 days or so—just confirm lead time when you send the RFQ, and include whether you need CCC or CE certifcation stamped on the COA, because we can supply either depending on your destination port.
All models have a 60% duty cycle at rated current, so for heavy production runs you'll want to let them cool a bit between long passes. For most shipbuilding tasks, that's plenty—just don't expect to weld non-stop for hours at max amps.
Yes, the larger models like TIG-400P and up support water cooling, and we can supply a separate water cooler unit if needed. The TIG-630P typically ships as forced air cooling by default, but you can request the water-cooled version.
Our standard MOQ is 5 units per model, but if you're combining different models in one order we can flex that down to 3 each. Just let us know the exact breakdown and we'll confirm.
Every machine comes with CCC, CE, ISO, and ROHS certs included in the shipment—no extra request needed. You'll get physical copies in the packing box along with the test reports.
Yes, the TIG-315P is available in both 220V and 380V versions. For 380V, typical lead time is 25-30 days after order confirmation. Stock units are usually 220V, so custom voltage adds a bit of time.
