The Shakti TIG-300AS delivers 300 A of single-phase TIG output with pulse capability, enabling precise stainless steel and critical pipe welds beyond what the 200A TIG-200A achieves — Multi Trade Combines stocks it in Guwahati, price on request.
The Shakti TIG-300AS is a step up from the TIG-200A in both output capacity and process capability. At 300 A rated output, it handles heavier-wall stainless steel pipe, duplex stainless components and thick mild steel plate in TIG mode without approaching the machine's thermal duty cycle limits — allowing longer continuous welding passes than the 200A model. The pulse function is the defining additional capability: it opens access to thin-material and heat-sensitive alloy welding that requires precise, controlled heat input.
The single-phase power supply (240 V input) means the TIG-300AS can be run from domestic or light industrial single-phase supply — a practical advantage at construction sites, maintenance workshops and smaller fabrication units in Northeast India where three-phase supply is not always available. The Shakti brand's established service network and Multi Trade Combines' Guwahati stocking make replacement parts and consumables (tungsten electrodes, back-purge fittings, TIG torches) readily available.
Food and dairy processing plant fabricators in Guwahati who manufacture stainless steel vessels, piping and CIP (clean-in-place) circuit welds specify TIG welding for root passes and full-penetration butt welds. Pharmaceutical and chemical plant maintenance teams in Assam use TIG for welding hygienic-grade fittings to process vessels. Pipe-welding contractors on GAIL and IGGL gas-pipeline projects in Assam use TIG for open-root passes on high-pressure carbon steel pipe before MMA fill-and-cap. Sheet metal fabricators producing aluminium enclosures for electronics and telecom shelters in Guwahati use the higher amperage for 4–6 mm aluminium plate.
The TIG-300AS is used with a high-frequency TIG torch (WP-17 or WP-26 series for 300 A rated duty), a gas flow meter set for argon shielding (15–18 L/min typical for 300 A TIG), and a back-purge gas assembly when welding stainless pipe. Multi Trade Combines stocks ESAB and Shakti TIG consumables alongside the machine. Auto-darkening welding helmets from our range give the clear view of the TIG puddle during ignition and a protected view at full arc brightness — important for the fine arc-control that pulse TIG demands.
| Brand | Shakti |
|---|---|
| Category | Welding Machines |
| Key specs | 1-PH · 300 A · pulse-ready |
| Max output | 300 A |
| Input supply | Single-phase, 240 V |
| Process | TIG (GTAW) with pulse |
| Availability | In stock — price on request |
More from our Welding Machines range
Pulse TIG alternates the welding current rapidly between a peak value (where the arc penetrates the joint) and a background value (where the weld pool solidifies slightly). This pulsing action gives the welder much finer control over heat input — critical when welding thin stainless sheet, duplex stainless pipe or heat-sensitive alloys where overheating causes distortion or sensitisation. The TIG-200A delivers steady DC current without pulse; the TIG-300AS adds this pulse mode, making it the choice for pharmaceutical-grade stainless pipework, food-processing vessels and hydrogen-service piping — all growing applications in Northeast India's expanding processing and infrastructure sector.
Aluminium TIG welding in GTAW practice requires AC output (alternating current) rather than DC to achieve the oxide-cleaning action that breaks up aluminium's tenacious surface oxide layer. The TIG-300AS spec should be confirmed with our team regarding AC capability — many Shakti TIG models at this amperage support both AC and DC output. DC TIG on aluminium is not recommended for production work. If your application involves aluminium, mention it when enquiring so we can confirm the output modes and recommend the correct tungsten and filler wire for your material thickness.