The Excellent Enterprises TIG-ARC-250 Three Phase MOSFET Inverter Welding Machine is a production-grade DC TIG + MMA welder for stainless-steel processors, food and pharmaceutical equipment fabricators, precision engineering shops and industrial maintenance teams. Delivering 20–250A on 380V three-phase, it pairs clean DC TIG quality with stick versatility for steel and stainless (for aluminium TIG, see our AC/DC range).
Product Overview
A MOSFET inverter platform delivers fast arc response and controlled heat input for stainless fabrication, thin material and precision assembly. Three-phase input improves power stability, reduces load imbalance and supports continuity through longer production cycles. DC Lift-TIG ignition avoids high-frequency interference; MMA mode handles fabrication and repair.
Key Features
- 20–250A DC TIG + MMA output; three-phase stability.
- DC TIG for stainless/steel (not aluminium) — clean, precise welds.
- Lift-TIG start — no HF interference.
- Electrodes 2.5–4.0mm; 0.93 power factor.
- Hot Start, Arc Force, Anti-Stick.
- 60% duty; full protection.
Benefits
Three-phase stability lifts production consistency over single-phase TIG; clean DC TIG suits hygienic stainless work (food/pharma); MMA versatility covers fabrication and maintenance; 0.93 PF aids efficiency.
Technical Specifications
| Specification | Details |
|---|---|
| Model | TIG-ARC-250 |
| Technology | MOSFET Inverter |
| Processes | DC TIG + MMA |
| Arc Start | Lift TIG |
| Input Voltage | AC 380V ±15% |
| Phase | Three Phase |
| Output Current | 20A – 250A |
| No-Load Voltage | 70V |
| Duty Cycle | 60% (DATA REQUIRED: confirm rated amperage) |
| Efficiency | 85% |
| Power Factor | 0.93 |
| Electrode (MMA) | 2.5mm – 4.0mm |
| Suitable Materials | Carbon Steel / Stainless / Low-Alloy (not aluminium — DC) |
Materials & Construction
MOSFET-inverter enclosure with control panel and TIG gas connection; three-phase power section. (DATA REQUIRED: weight, dimensions, IP, torch.)
Applications
Stainless-steel fabrication; food-processing equipment; pharmaceutical-plant fabrication; precision engineering; pipe & tube welding; EPC maintenance; industrial repair; structural fabrication support; maintenance shutdowns; production welding.
Industries Served
Stainless/food/pharma fabrication · precision engineering · EPC maintenance · industrial repair · production fabrication.
Buying Considerations
- Aluminium? No — DC TIG (steel/stainless); choose AC/DC for aluminium.
- vs TIG-ARC-225: the 250 is the three-phase production step (stability/continuity); the 225 is single-phase for sites without three-phase.
- vs TIG-ARC-400: step up to 400A (IGBT) for heavy/continuous high-amperage work.
- What’s included: confirm TIG torch (+length) + argon regulator (DATA REQUIRED).
Why Choose Excellent Enterprises
ISO 9001:2015-certified, ISI-compliant supplier, 500+ clients since 1997 (29+ years). Genuine, warranty-backed machines, bulk pricing, PAN-India delivery, GST invoicing, OEM/export support, 30-minute quote response — plus tungsten, argon regulators and PPE.
Maintenance
Grind tungsten correctly; check gas for leaks; inspect collet/cap/cup; clear vents; store dry.
Safety Considerations
Auto-darkening helmet, FR clothing, TIG gloves; ventilation; secure argon cylinder; three-phase connection by a qualified electrician; isolate before service. Follow IEC 60974-1.
Frequently Asked Questions
What is the TIG-ARC-250 used for? Three-phase DC TIG + MMA production welding of stainless, carbon and low-alloy steel — stainless/food/pharma fabrication and maintenance — on 380V. Does it weld aluminium? No — DC TIG (steel & stainless). Use an AC/DC machine for aluminium. TIG-ARC-250 or 225? The 250 is three-phase (production stability); the 225 is single-phase for sites without three-phase. TIG-ARC-250 or 400? Step up to the 400A IGBT for heavy/continuous high-amperage work. What is Lift-TIG? A touch-and-lift start with no HF interference. Is a torch/argon regulator included? Confirm at quote (DATA REQUIRED).
Conclusion & RFQ CTA
The TIG-ARC-250 is a production-grade 250A three-phase DC TIG + MMA welder for steel and stainless — from an ISO 9001:2015 supplier with 29+ years’ experience. Request a quote for price, torch/argon-regulator/tungsten and PAN-India delivery.
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