Plasma cutter or oxy-acetylene: a UK garage choice

You are choosing a plasma cutter or oxy-acetylene for a length of mild steel that will not fit the angle grinder you already own. The bottle trolley is in the corner, or it is a hire you have not booked, and an amazon.co.uk inverter under £200 claims it can part the same plate. One method burns a fuel gas in oxygen. The other, across the eleven listings in this set, is an air plasma cutter: a power source, a torch and an earth clamp, with compressed air doing the work that oxygen and acetylene do on a gas torch.

The Products Compared editorial team read those amazon.co.uk listings in October 2026, together with the public notes kept for this comparison. There was no lab cut, and nobody here lit a torch. Shelf prices move. A qualifying purchase through our links can earn a commission at no extra cost to you. Links to amazon.co.uk use the tag pcuk26-21. The rows, the review counts, and the prices sit on the Stahlwerk plasma cutter comparison.

In short

An air plasma cutter in this set does not need oxygen or acetylene bottles. It still needs a compressor, a supply that matches the cut, and fume control. It is the home-workshop default for sheet and light plate inside the clean-cut figure, and the wrong stand-in when the steel is thicker than these listings have shown or you have no air and no suitable socket.

Two ways to part steel

Oxy-fuel versus plasma is two kits. An acetylene torch or a plasma cutter can both part mild steel, and they do not share a consumable. Oxy-fuel uses oxygen and a fuel gas. Hand plasma, in the note recorded from Engweld, uses air rather than fuel gas. If you already run a bottle set, a new inverter does not retire it.

Bottles and a torch go where there is no socket, which is why a farm gate still pulls people toward oxy-fuel. The inverters here stop at a plug and a compressor hose. Stahlwerk's three-phase CUT 60, the 400 V machine, is the wrong thicker-cut suggestion for a 13 A garage.

It does not belong on a domestic socket, and it is not one of these eleven ASINs. The manufacturer lines are Reboot, SPRIGHOLLY, PLASMARGON, Haxiaoer and SUSEMSE. Searching Stahlwerk and landing on another brand is an easy way to buy the wrong specification. Prices in the file run from the SPRIGHOLLY CUT50L at £67.83 to the Reboot non-HF 40 A at £199.00. That band leaves out a compressor, and this page will not give gas pressures or a lighting sequence.

What an air plasma cutter still needs

Do you need oxygen bottles for a plasma cutter? For these machines, no. The gas in the torch is compressed air, which is the split Engweld records for hand plasma. What the carton still leaves out is the compressor. Foster's point, kept for this set, is that an onboard compressor changes the machine, and none of these ASINs has one.

Every included-components line stops at the inverter, the torch, a clamp, a hose or regulator, and a few tips. The air figure is not one number. You may see 60 L/min at 0.4 MPa or 90 PSI, 30–70 psi, a minimum of 6 bar, or 0.35–0.5 MPa, and you match the line on the listing you buy.

One Reboot 45 A review used an 8 litre silent compressor for short runs and a 50 litre tank when the cut was longer. The supply is the other half. UK mains are 230 V, and a household plug is a BS 1363 plug fused at 13 A. The 50 A or 60 A on a title is output current at the torch, not wall current.

Several reviewers outran a 13 A fuse. On the Reboot CUT60, one verified review says a 13 A fuse blew, and another buyer moved to a 16 A supply for heavier metal. That limit is on the plasma cutter 13 amp supply page. A welding filter is the third missing item. None of these included lines lists a helmet, and HSE still expects you to control cutting fume if you stand in it.

Where the thickness claims stop

Cutting thick steel at home is where the titles get ahead of the reviews. Clean cut is the thickness that leaves an edge you can use. Severance, or the maximum, is the thickness the arc can part, often with a ragged edge. The plasma cutter buying guide keeps that split before any model name.

Air plasma cutter limits here are printed, and they are not one limit. The Reboot CUT60 lists a 12 mm clean cut and a 16 mm maximum. UK reviews on that ASIN talk about Transit sills, 1.2 mm sheet, holes in 6 mm stainless and the tops of 200 litre barrels. They do not report a measured 16 mm cut. The PLASMARGON CUT65 Pro title says up to 18 mm clean, and a bullet says 16 mm clean and 18 mm severance.

A verified review called the 18 mm pitch false and said 8 mm mild steel was a struggle, with a realistic range around 1.2–4 mm sheet. The 25 mm figure is the Reboot non-HF listing, model RBC4000LF, at £199.00, beside a printed 12 mm clean cut. Reviews in that file do not report 25 mm. One buyer cut 5 mm stainless. A bullet claims a standard UK 13 A socket with no blown fuses, and a review says fuses kept blowing above 22 A.

A plasma cutter for 20 mm steel sits beyond what this set has shown. R-Tech's P32D, which is not an ASIN here, publishes 8 mm clean and 12 mm severance on a stated 13 A input. If the plate is 20 mm and the edge has to be square, these garage inverters are the wrong tool.

Coatings and fume, whichever process you use

Coated steel changes the air you breathe. Engweld's recorded FAQ says galvanised steel can be cut with plasma, and that the zinc fumes need serious filtration. The live page could not be reloaded for this pass, so the claim stops at that sentence. HSE's cutting-metals guidance, as used for this set, still expects cutting fume to be controlled when you stand in it.

Oxy-fuel produces a different fume. That difference is not a reason to skip extraction on the torch or on the plasma cutter. Paint is a start problem as well as a fume problem. The Reboot CUT60 is a touch-arc machine, aimed at bare metal. A long review of another touch-start cutter in this set says paint has to come off at the tip and at the earth clamp before the arc will start.

Pilot-arc listings sell a start on paint and rust. That difference does not add millimetres, and it does not filter zinc. A driveway or a farm track feels easier because you are already outside. Open air helps only if you are not standing in the plume.

Aluminium fails the same test. The PLC65 prints a 16 mm clean cut on aluminium, stainless and copper, and it has no UK review line in the file. One Reboot 45 A review reports aluminium sheet, with mild steel described as clean at 6 mm and near the limit at 12 mm. These sources do not record an oxy-fuel cut on aluminium, so a plasma title is not a torch instruction.

Choosing a cutter from this set

Start with the job, then the air, then the lower thickness figure. Sheet, a vehicle sill, or stainless around the thicknesses reviewers describe can move to an air plasma cutter once you can feed it dry air at the printed pressure. A 20 mm plate, or a socket that has already failed a similar machine, stays with oxy-acetylene.

For occasional bare or corroded steel and stainless in that reviewed range, the top pick is the Reboot CUT60, model RBC6000-29UK, ASIN B0DTG34CST. It was £132.04 on amazon.co.uk, with 4.6 from 28 reviews. The listing says a 12 mm clean cut, touch-arc ignition, and a 16 mm maximum.

It has no compressor and no helmet. One verified review blew a 13 A fuse. Who should skip which machine is on the best plasma cutter page.