The Excellent Enterprises AC/DC TIG-315 is a 315-amp three phase industrial inverter welder supporting AC TIG, DC TIG, AC-Pulse TIG, DC-Pulse TIG and MMA. AC TIG with adjustable balance welds aluminium and its alloys; DC and pulse TIG deliver precision, low-distortion welds on stainless steel, carbon steel, copper and titanium. Best for production fabrication and code-quality work — pressure vessels, aerospace, pharma/food-grade stainless, heat exchangers and titanium. Not required if you weld only on single phase or only need light-duty TIG (consider the single-phase TIG-200 instead).
Product Overview
The AC/DC TIG-315 is the flagship of the Excellent Enterprises professional TIG range, engineered for environments where precision, material versatility, process control and production-grade reliability are mission-critical. Running on a three phase 380 V supply, it delivers a stable 5–315 A output and full digital process management, so fabricators can hold tight, repeatable parameters across long production runs and demanding, inspection-grade joints.
It is built for aerospace component fabricators, pressure-vessel and heat-exchanger manufacturers, pharmaceutical and food-equipment OEMs, titanium and exotic-alloy specialists, and precision-engineering facilities handling aluminium, stainless, carbon steel, copper and titanium where ordinary welders cannot deliver the required process flexibility or weld integrity.
Key Features
- Five-mode multi-process output — AC TIG, AC-Pulse TIG, DC TIG, DC-Pulse TIG and MMA in one platform.
- Adjustable AC balance — tune the ratio of oxide cleaning to penetration for different aluminium grades and thicknesses.
- Pulse TIG (AC & DC) — peak/background current modulation for controlled heat input, low distortion and superior thin-material and root-pass results.
- Pre-gas / post-gas timing — protects the weld pool and extends tungsten life.
- Up-slope / down-slope control — smooth arc initiation and clean crater fill.
- 2T / 4T torch modes — handheld and long-run production welding.
- Lift-arc start — controlled ignition without damaging nearby electronics.
- Water-cooled torch compatibility — supports sustained high-amperage TIG.
- Industrial protection — over-voltage, over-current, over-heat and phase-loss protection.
Benefits
For a production or code-fabrication shop, the TIG-315 replaces several specialist machines, standardises parameters across operators (reducing variability and rework), and extends what the shop can quote — from thin aluminium and titanium to thick stainless and pressure-grade joints. Pulse control reduces distortion and consumable use; three-phase power and water-cooled-torch support sustain output through long runs; and digital control supports the consistency that inspection and code work demand.
Technical Advantages
AC TIG uses square-wave alternating polarity: on the electrode-positive cycle, surface oxides are stripped (cathodic cleaning); on the electrode-negative cycle, penetration is delivered — the basis of clean aluminium welding. Adjustable AC balance lets the operator bias toward cleaning (oxidised/dirty aluminium) or penetration (thicker sections). Pulse TIG alternates a high peak current with a low background current; the peak achieves fusion while the background lets the pool cool, cutting heat input, distortion and burn-through on thin or heat-sensitive metals and improving root-pass control. Lift-arc start avoids HF emission, protecting nearby electronics and automation.
Material & Construction
The TIG-315 is housed in a rugged industrial enclosure with a protected digital control panel and high-capacity cooling sized for sustained three-phase duty; water-cooled-torch compatibility further supports high-amperage runs. Inverter-grade switching and thermal design support the rated 60% duty cycle and 85%+ efficiency. ⚠️ ASSUMPTION — confirm: net weight ≈ 20–30 kg; dimensions; ingress rating ≈ IP21S/IP23; VRD; insulation class; whether the water-cooler unit is included or optional, and the supported torch model (e.g. WP-18 water-cooled). Replace with verified figures.
Performance Advantages
- Code-quality precision — pulse + slope + gas timing for inspection-grade welds.
- Widest material range in the range — aluminium, stainless, carbon steel, copper and titanium.
- Production endurance — three-phase power, high duty cycle and water-cooled-torch support.
- Low distortion & low consumable use — pulse control on thin and heat-sensitive work.
- Repeatable, operator-independent results — full digital parameter management.
Applications
Aerospace component fabrication; pressure-vessel and boiler fabrication; heat-exchanger manufacturing; pharmaceutical and food-grade stainless fabrication; titanium process welding; aluminium marine and structural fabrication; railway and heavy-engineering precision welding; and OEM advanced-manufacturing lines.
Industries Served
Aerospace · pressure-vessel manufacturing · pharmaceutical plant fabrication · food-processing equipment · titanium & exotic-alloy fabrication · marine aluminium · heat-exchanger manufacturing · railway fabrication · heavy engineering · OEM production.
Why Choose Excellent Enterprises
Excellent Enterprises is an ISO 9001:2015 certified, ISI-compliant supplier serving 500+ businesses across India since 1997 (29+ years). For a capital purchase like the TIG-315, that means warranty-backed equipment, PAN-India delivery and service, GST invoicing, OEM/private-label capability, export support (HS code 8515) and a 30-minute quote response. We supply not just the machine but the consumables and PPE around it, so you can equip a complete TIG cell from one trusted source.
Buying Considerations
- Power & installation: requires a stable three-phase 380 V supply; confirm rated input current/KVA for cabling and breaker sizing.
- Cooling: for sustained high-amperage TIG, a water-cooled torch is recommended; confirm whether the cooler is included or quoted separately.
- Material range: titanium and thin aluminium benefit most from pulse + AC balance — confirm the parameter ranges meet your process spec.
- Duty cycle: rated 60% — suited to production cycles; for continuous max output, discuss derating with our team.
- What’s included & warranty: confirm in-box accessories (torch, regulator, work lead, clamp), warranty term and commissioning support.
Maintenance Tips
Keep cooling intakes and (if fitted) the water-cooler reservoir/coolant clean; check coolant level and flow before high-amperage runs. Replace tungsten, collets, gas lenses and cups as they wear to maintain arc and gas coverage. Inspect three-phase input cabling, lugs and the earth connection regularly. Clear conductive dust from the enclosure with dry, oil-free air and keep airflow unobstructed to preserve the duty cycle.
Safety Considerations
Use a TIG-rated auto-darkening helmet, FR clothing and gloves; provide fume extraction for stainless, titanium and coated metals. Ensure correct three-phase connection and earthing by a qualified electrician, maintain argon pre/post-flow, and keep flammables away from the arc. Follow IEC 60974-1 and your facility’s electrical-safety and hot-work permit procedures, especially for code and confined-space fabrication.
Frequently Asked Questions
What is the AC/DC TIG-315 used for? It’s used for precision, multi-material industrial welding — aluminium fabrication, stainless and carbon-steel welding, titanium and copper work, pressure-vessel and aerospace fabrication, and pulse-controlled thin-material welding — from a single three-phase platform.
TIG-200 vs TIG-315 — which do I need? Choose the single-phase TIG-200 for workshop/mobile aluminium and multi-metal TIG without three-phase power. Choose the three-phase TIG-315 for higher output (315A), pulse control, water-cooled-torch support and production/code-quality work.
Can it weld titanium and aluminium? Yes. DC and pulse TIG handle titanium with controlled heat input, while AC TIG with adjustable balance welds aluminium and its alloys. Use proper argon coverage (and purging for titanium). Confirm pulse/balance ranges from the datasheet.
What does Pulse TIG do? Pulse TIG alternates peak and background current to reduce heat input and distortion, improve thin-material and root-pass control, and give a cleaner weld appearance — essential for code-quality and heat-sensitive fabrication.
Is a water-cooler required? For sustained high-amperage TIG, a water-cooled torch is recommended to protect the torch and operator comfort. Confirm whether the cooler/torch is included or quoted as an add-on.
Does it support MMA/stick welding? Yes. It includes MMA functionality for structural, maintenance and general fabrication alongside its TIG modes.
Is it suitable for production and is export/OEM available? Yes — 315A output, three-phase power, digital process control and industrial protections suit production environments, and OEM/private-label and export pricing are available on request.
Conclusion
The Excellent Enterprises AC/DC TIG-315 is a production-grade, three-phase AC/DC pulse TIG platform for fabricators who weld aluminium, stainless, titanium and code-quality joints to a consistent, inspection-ready standard — supplied and supported by an ISO 9001:2015 company with 29+ years of experience. Request a quote or full datasheet for pricing, water-cooler options, OEM/export terms and PAN-India delivery and service.
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