Control, and aluminum · review
The first machine on this page that publishes its AC frequency range and pulse frequencies — the controls aluminum actually needs.
Where we come out The first machine here with the aluminum controls written on the label rather than implied.
Every AC/DC machine above this one on the page welds aluminum. This is the first that publishes the numbers that decide how well — AC frequency, pulse frequency on both currents, and a timed spot mode.
Alternating current breaks aluminum’s oxide layer. How fast it alternates changes the shape of the arc: low frequency gives a broad, soft cone that suits heavy sections, high frequency tightens it into a focused point that goes where you aim. A range of 20 to 100 Hz means you can weld a thick base plate and a thin fillet on the same afternoon without fighting the machine.
Machines that omit this figure usually fix it internally at around 50 Hz. That is a reasonable default and it is not adjustable, which you discover on the first job where the arc wanders.
0.1 to 99.9 Hz on DC and 0.5 to 99.9 Hz on AC. The low end is the slow, visible beat used to control a pool on thin material; the high end stiffens the arc. Publishing both ranges rather than the words « pulse function » is a small marker of a specification written by someone who welds.
Time and interval, from 0.01 to 9.99 seconds. Repeatable tacks are what stop thin sheet from pulling as it cools — the resolution is generous, the repeatability is the point.
No duty cycle at a stated temperature, and no AC balance range — the setting that decides how much of each cycle goes to cleaning the oxide rather than to penetration. At €459 both would be reasonable to expect.
Current, processes, pulse and AC frequency ranges, spot timing and warranty come from the manufacturer’s published specification. Market availability was verified per market on the EAN.
Prices quoted in this text were read on 2026-08-13. The live price is at the top of the page.
| Current | 200 A |
|---|---|
| Processes | AC and DC TIG with HF start, MMA |
| Pulse frequency | 0.1–99.9 Hz on DC, 0.5–99.9 Hz on AC |
| AC frequency | 20–100 Hz, adjustable |
| Spot mode | Time and interval adjustable, 0.01–9.99 s |
| Warranty | 7 years (IPO Technik-Handels GmbH, Friedrichshafen, DE) |
| Amazon reference | B0FHWBMLF6 |
| EAN | 4251395117576 |
It narrows and stiffens the arc. At 50 Hz the arc is broad and soft, which suits wide beads on thick aluminum; at 100 Hz it tightens into a focused cone that puts the heat where you point it, which is what you want on a fillet or a thin edge. Being able to set it is the difference between a machine that welds aluminum and one that welds it where you intend.
It is a real control, and the resolution is mostly marketing. What matters is repeatability: a tack of 0.4 seconds every time holds a panel square, where hand-timed tacks vary enough to pull the work as they cool. The hundredths matter less than the fact that the number is a setting rather than your reflexes.
7.8/ 10
The first machine here with the aluminum controls written on the label rather than implied.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 13, 2026.
Aluminum work where the arc has to be steered, not just switched on
Here because the consumable states this machine by name.
Specifications: the manufacturer sheet for welding and metalworking machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
180 A AC/DC · 32-bit control · 7-year warranty · €380
A fully digital AC/DC machine with adjustable pulse, from an importer that publishes an address and a seven-year term.
Best for: Someone who wants aluminum capability and an importer who answers letters
200 A AC/DC · fully digital · 7-year warranty · €570
The top of this page: a fully digital 200 A AC/DC machine with stick as well, and seven years behind it.
Best for: Regular aluminum and stainless work, where the machine has to be right rather than adequate
140 A DC · lift start · no HF · €128
The cheapest way into TIG, and the one machine here that starts without high frequency — which is a feature, not only a saving.
Best for: Finding out whether you like TIG before spending €400 on one
