Cutting without a disc · review
The only machine here that ships with the air treatment unit — the part everyone else leaves you to discover.
Where we come out Expensive per amp, and the only machine here that will not be ruined by your compressor in week one.
Five hundred and twenty dollars for a 40 A machine, when €220 buys 65 A elsewhere on this page. The justification is a component that does not appear on any other listing here: a pre-installed air maintenance unit.
Plasma cutting is an arc blown through a nozzle by compressed air. If that air carries moisture — and air from any ordinary compressor does — the arc becomes unstable, the cut leaves dross that has to be ground off, and the electrode and nozzle erode fast. It is the single commonest reason a new plasma owner concludes the machine is poor.
The fix is a water separator, a regulator, and ideally a dryer. On every other machine here, discovering that is part of the first month. On this one it arrives fitted, with a quick coupling for the hose.
Forty amps with a pilot arc, and a quoted capability up to 25 mm (0.98 in) of material. That figure comes without a named material, which is the one place the specification is thin — 25 mm at 40 A would be a severance figure in mild steel at best, and clean cutting will be far below it. Treat it as an 8 to 10 mm (0.31 to 0.39 in) machine for work you want to weld afterwards.
No such listing: the American Amazon shop answers the reference with a search box rather than a page.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Current, cut figure, ignition, air treatment and warranty come from the manufacturer’s published specification. The 25 mm (0.98 in) figure is quoted without a named material in the listing, and is reproduced here with that limitation stated. 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 | 40 A |
|---|---|
| Cut thickness | Up to 25 mm (0.98 in) material (manufacturer’s figure) |
| Ignition | Pilot arc |
| Air treatment | Pre-installed maintenance unit with quick coupling for the compressed air supply |
| Warranty | 5 years (WELDINGER) |
| Amazon reference | B076DGR7XZ |
| EAN | 4251314215000 |
Because compressed air carries water, and water in a plasma torch is destructive. It makes the arc wander, leaves dross on the underside of the cut, and kills electrodes and nozzles quickly — often within an afternoon. Every plasma cutter needs a separator; this one arrives with it plumbed in, which removes the commonest first mistake in the category.
For most workshop steel, yes — 40 A machines cut 8 to 10 mm (0.31 to 0.39 in) comfortably. What you give up against a 60 or 85 A machine is speed and the top of the thickness range. If your work is sheet, box section and plate up to 10 mm (0.39 in), the current is not what will limit you; the air will be.
7.5/ 10
Expensive per amp, and the only machine here that will not be ruined by your compressor in week one.
A reference exists on these Amazon stores: Germany, Italy. Listed is not the same as in stock — availability changes daily.
Details checked on August 13, 2026.
A first plasma cutter, bought by someone who does not yet know that air quality is the whole game
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.
70 A · PT-80 torch, 5 m (16 ft) · 25 mm (0.98 in) · €522
Sold as a working set — a 5 m (16 ft) torch, earth lead, shield and hammer — with a seven-year warranty behind it.
Best for: A workshop that wants one box, standard consumables and somewhere to send it if it fails
120 V · built-in compressor · 27 lb · inverter · pre-set pressure
A plasma cutter with its own compressor inside — no bottle, no hose, no water trap — and a listing that publishes neither a cut thickness nor an amperage.
Best for: Cutting thin steel anywhere there is a socket, with nothing else to carry
≈ $1085
15–45 A · 15 mm (0.59 in) steel / 8 mm (0.31 in) stainless / 5 mm (0.20 in) aluminum · €330
The first machine here that publishes its cut thickness for three materials instead of one — which is the whole specification.
Best for: A workshop cutting steel plate and section up to about 10 mm (0.39 in), cleanly
