The ESAB Aristo Tig 400 is an inverter TIG power source for alternating and direct current, with a welding current of 400 A at a 60% duty cycle and 300 A at a 100% duty cycle. The supply is 400 V, the cooling is liquid, and it has HF ignition, pulse and micropulse.
What this machine is for
Alternating current takes aluminium and its alloys, because it breaks up the layer of oxides on the surface. Direct current goes under stainless and mild steel. The 300 A in continuous work holds long runs without breaks, and 400 A gives a reserve on thicker joints, so the source goes both onto repairs and onto a production station.
HF ignition starts the arc without touching the material with the electrode, so the tungsten and the start of the weld stay clean. Pulse and micropulse control the amount of heat in the material: pulse puts the pool in order on thicker parts, micropulse works at a higher frequency and focuses the arc, which helps on thin sheet and at the root.
Features and equipment
- TIG AC/DC. Alternating current for aluminium, direct current for stainless and mild steel.
- HF ignition. A start without touching the material with the electrode, with no contamination of the tungsten.
- Pulse and micropulse. Control of the heat in the material and a focused arc on thin sheet.
- Liquid cooling for long runs.
Technical data
| Brand | ESAB |
|---|---|
| Type of power source | inverter |
| Process | TIG |
| Type of current | AC/DC |
| Welding current at a 60% duty cycle | 400 A |
| Welding current at a 100% duty cycle | 300 A |
| Supply voltage | 400 V |
| Cooling | liquid |
| Functions | HF ignition, pulse, micropulse |
What you get
- used ESAB Aristo Tig 400 power source
- TIG torch 8 m for 400 A
- earth clamp about 3 m
- power supply cable about 3 m
What to watch out for
The 400 V supply needs a three phase socket. HF ignition can disturb the controllers of machines standing next to it, take that into account when you set up the station. The TIG torch is 8 m long, with a bundle like that the drop on the lead is larger, so run the pack without sharp bends.
With liquid cooling the coolant level and the flow through the hoses decide the life of the torch, check them before the start. You also need tungsten electrodes, gas nozzles and argon for the work, and the record does not list them. The record gives no weight.
This unit is sold
This machine has already gone to a customer. Similar units are listed below, and if you want the same model, leave your contact details in the form and we will let you know when the next one arrives.












