SSimder TIG-250AC 6 in 1 AC Pulse TIG Welder
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A 250A AC/DC TIG welder that welds real aluminum — six processes, full pulse control, and a synergic mode that sets the parameters for you.
AC TIG breaks up the oxide layer on aluminum while you weld; DC TIG lays precision beads on stainless, titanium, carbon steel, and copper. Stick mode with ARC FORCE and HOT START handles thicker, dirtier stock. Start in synergic (SYN) mode as a beginner, or dial in every pulse parameter by hand as a pro. Runs on 110V or 220V, with foot pedal support for hands-free heat control.
At a Glance
Every number below comes from the official spec sheet — the same figures we publish on Amazon.
| Processes | 6-in-1: AC TIG, AC Pulse TIG, DC TIG, DC Pulse TIG, Stick — plus SYN (synergic) mode |
|---|---|
| Max output | 250A TIG / 200A Stick |
| Voltage | Dual 110V / 220V |
| Aluminum | Yes — AC TIG mode is made for it (see FAQ) |
| TIG torch | WP26 included — runs standard WP17-series consumables |
| Controls | Pulse frequency / width / slope / background current, pre & post flow, 2T/4T/SPOT, ARC FORCE, HOT START, SYN/manual switch |
| Foot pedal | Supported — sold separately |
| Included | WP26 TIG torch, electrode holder, ground clamp, gas tube, 220V conversion cord (US/CA) |
Built for
- ✓Aluminum repair & fabrication — AC TIG with balance control cleans the oxide layer as you weld.
- ✓Precision thin work — DC pulse TIG on stainless, titanium, and copper down to foil-thin.
- ✓Beginners — SYN mode auto-matches parameters while you learn the torch.
- ✓Professionals — full manual control of every pulse and gas-timing parameter, foot pedal ready.
Not built for
- ✕MIG welding — this is a TIG/Stick machine. For 10-in-1 MIG + plasma, see the SD-4050 Pro.
- ✕Plasma cutting — pair it with a CUT-50 Pro or the SD-4050 Pro.
How It Compares
Most TIG welders in this class are DC-only. Here is what the AC in AC/DC buys you.
| TIG-250AC | Typical DC-only TIG 2-in-1 |
SD-4050 Pro 10-in-1 flagship |
|
|---|---|---|---|
| Processes | 6-in-1 | 2-in-1 | 10-in-1 |
| AC TIG (aluminum) | ✓ | ✕ | DC TIG only |
| Pulse TIG | ✓ AC + DC, full parameters | Basic or none | ✓ |
| Synergic mode | ✓ SYN one-knob | ✕ | ✓ MIG synergic |
| Stick output | 200A | Typically lower | ✓ |
| MIG welding | ✕ | ✕ | ✓ Pulse MIG |
| Plasma cutting | ✕ | ✕ | ✓ |
Full Specifications
| Model | TIG-250AC |
|---|---|
| Input voltage | 110V / 220V dual |
| TIG output | 250A AC/DC |
| Stick output | 200A |
| Processes | AC TIG · AC Pulse TIG · DC TIG · DC Pulse TIG · Stick · SYN |
| TIG torch | WP26 (standard WP17-series consumables) |
| Aluminum | Yes — AC TIG |
| Foot pedal | Supported (sold separately) |
| Warranty | 3-Year |
What's in the Box
Torch, holders, and gas fittings included — add shield gas and you are striking arcs the day it arrives.
- 01WP26 TIG torch (runs standard WP17-series consumables)
- 02Stick electrode holder
- 03Ground clamp
- 04Gas tube
- 05220V conversion cord (US / CA)
- 06Operation manual
Genuine SSimder Parts
Know Your Torches — and Their Kits
Every mode on this machine runs a specific torch, and every torch runs its own wear parts. Restock the exact kit yours needs.
WP17 TIG Welding Consumables — 55Pcs
Shop the Kit →
E7018 Welding Rods — 10 lb
Shop the Kit →Genuine SSimder parts matched to this machine’s included torch and holder. Not sure which one you need? A photo of your torch tip is all it takes — service@ssimder.com.
TIG-250 Newest Review
Frequently Asked Questions
What processes does the SSimder TIG-250AC support?
It is a 6-in-1 welder: AC TIG, AC Pulse TIG, DC TIG, DC Pulse TIG, and Stick, with synergic (one-knob) or full manual control — 250A TIG output and 200A Stick.
Can the TIG-250AC weld aluminum?
Yes — AC TIG mode is designed for aluminum, while DC TIG handles stainless steel, titanium, carbon steel, alloys, and copper.
Is the TIG-250AC good for beginners?
Yes — synergic mode automatically sets parameters for beginners, and manual mode gives professionals full control of pulse, slope, and gas timing.
Does the TIG-250AC support a foot pedal?
Yes — a foot pedal is supported as an optional accessory sold separately.
What is included with the TIG-250AC?
It includes a WP26 TIG torch, electrode holder, ground clamp, gas tube, and a 220V conversion cord (US/CA only).
Can SSimder welders weld aluminum?
Yes — the SD-4050Pro (Pulse MIG) and TIG-250AC (AC/DC TIG) are rated for aluminum welding. The MIG-250 cannot weld aluminum, even with the optional spool gun, so choose the SD-4050Pro or TIG-250AC for aluminum projects.
