Tig Welding Machine

Tig Welding Machine About

*TIG 400A WELDING MACHINE* *TIG* = Tungsten Inert Gas Welding A *400A TIG Welder* is a heavy-duty inverter machine for welding thick metals with precision. Used when you need beautiful, strong, spatter-free welds on 6mm to 15mm+ plates. Comes in *2 types 1. *TIG 400 DC* - For MS, SS, Copper, Titanium 2. *TIG 400 AC/DC* - For ALL metals including Aluminum, Magnesium *How It Works* 1. *Non-consumable Tungsten electrode* creates the arc 2. *100% Argon gas* shields the weld pool 3. *High current 400A* melts thick plates in single/multi-pass 4. *Foot pedal/Remote* controls heat while welding 5. *Water cooling* is must at 400A for continuous work *Key Specifications - 400A* - *Welding Current 10A - 400A - *Input Voltage 3 Phase 415V 10%, 50/60Hz - *Duty Cycle 60% @ 400A | 100% @ 310A - *Welding Modes DC TIG, AC TIG _AC/DC model_, MMA/Stick, Pulse, Spot - *AC Frequency 20Hz - 250Hz _AC/DC only_ - *AC Balance 10% - 90% adjustable _AC/DC only_ - *Pulse 0.5Hz - 500Hz. For heat control on thick material - *HF Start High Frequency, non-touch - *Torch WP-20 Water-cooled 400A, 4m-8m. _Air-cooled will overheat_ - *Water Cooler 1HP - 2HP external cooler - _Compulsory_ - *Weight 35kg - 50kg inverter type - *Cooling 3-4 Turbo fans + IGBT overheat protection *Main Components* - *IGBT Inverter Power Source* with digital display - *Water-Cooled TIG Torch WP-20 with gas valve - *External Water Cooler 20L tank - *Foot Pedal / Torch Switch For amp control - *Argon Regulator + Flowmeter 8-15 LPM - *Ground Clamp 400A-500A, 50mm cable - *MMA Cable Can also run stick electrodes 2.5mm - 6.0mm *DC vs AC/DC 400A* TIG 400 DC TIG 400 AC/DC Metals MS, SS, Copper, Ti All metals + Aluminum, Mag Best Thickness 3mm - 12mm 3mm - 15mm Use Fabrication, Pipe, SS tanks Shipyard, Auto, Aerospace, Al fab Price Lower Higher by 30-40% *Advantages* - *High Power* - Weld 10mm - 20mm in 2-3 passes without distortion - *Precision* - Best for critical welds: pressure vessel, pipe, aerospace - *Clean Welds* - No spatter, no slag, no grinding - *All Position* - Can do root pass on thick pipe - *Pulse Control* - Controls heat on long welds. Less warping - *Dual Process* - TIG + MMA in one machine *Applications* - *Heavy Fabrication 10mm - 20mm SS tanks, ducts, vessels - *Pipeline Root + Fill pass on thick carbon steel/SS pipe - *Shipyard Aluminum and SS hull welding - *Aerospace Ti, Al, SS critical components - *Tool & Die Repair and build-up welding - *Pressure Vessel Boiler, heat exchanger welding *Consumables* - *Tungsten Electrode - *Red 2% Thoriated* - DC, 2.4mm, 3.2mm, 4.0mm - *Grey Ceriated/Green* - AC, 3.2mm, 4.0mm - *Filler Rods ER70S-6, ER308L, ER4043, ER5356 - 2.4mm to 4.0mm - *Gas Lens Kit #8, #10, #12 for better gas coverage - *Argon Gas High purity 99.99% *TIG 400A vs MMA 400A vs MIG 400A* TIG 400A MMA 400A MIG 400A Quality Best, clean Good Fast, good Speed Slow Medium 4x Faster Skill High skill needed Medium Low skill Best For Critical, beautiful welds Site, structural Production, thick plate Running Cost Gas + Tungsten Electrode only Wire + Gas *Important Tips* 1. *Water cooler is must* - Torch will burn in 5 min at 300A+ without it 2. *Gas flow 12-15 LPM for 400A to avoid oxidation 3. *Thick Al 10mm AC 320-380A, Freq 100-150Hz, Balance 70% 4. *Thick SS 12mm DC 250-350A, Pulse 1-3Hz, multi-pass *Bottom line Buy *TIG 400 DC* if you only weld steel/SS. Buy *TIG 400 AC/DC* if you do aluminum fabrication or shipyard work.