Plasma cutting (just like welding) starts at the metal.
It sets the rules. The welder builds the lines. So when it’s time to plasma cut your metal, that’s where you start.
You respect the metal. And your plasma cutter should, too.
What Makes a Plasma Cutter Work Better
Plasma cutting is part of the trade. It’s a fundamental skill and tool that metalworkers and fabricators use daily to shape, repair, and build. The purpose of a plasma cutter is simple: create clean, accurate edges when cutting conductive metals.
Plasma cutters take compressed gas and superheat it into ionized plasma. The plasma arc conducts electricity. The intense, focused heat melts and expels the metal, making cuts cleanly and efficiently. (And you feel a little like Luke Skywalker wielding a lightsaber.)
Plasma cutters save time compared to saws or oxy-fuel torches. They reduce cleanup with smoother edges, and they are fast. Different types of plasma cutters handle a wide range and depth of metal cutting with portability and reliable performance.
For a welder or fabricator, plasma cutting is just another day on the job. But at Baker’s Gas, we know and respect metals as much as you do. So here’s a breakdown of the most commonly plasma cut metals and the machines and solutions from Baker’s Gas that help you get the job done right, the first time.
Cutting Mild Steel for Everyday Jobs
When the job calls for mild steel, you’re working with the most commonly cut metal in fabrication. Mild steel is versatile, easy to cut, and it is everywhere. Almost every plasma cutter on the market is rated to handle mild steel. It’s the baseline, standard for “simple” cutting.
Galvanized steel and its toxic, zinc-coated fumes complicate the process. If you’re plasma cutting galvanized steel, you’ll need to get proper ventilation (like a PAPR system) and PPE involved. You also may burn through consumables faster or need to grind more after. But most plasma cutters will handle mild steel, galvanized or not, without much complaint.
Cutting Demands for Mild Steel:
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Jobsite Mobility – Portability and easy travel in a handheld cutter helps you get from shop bench to field work without losing performance.
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Ease of Setup – Quick starts and simple setups that make cutters feel familiar and easy to use for beginners or hobbyists.
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Cut Speed Efficiency – Mild steel is often cut in volume; cutters need to keep up with production demands by producing fast, repeatable cuts that don’t slow under load.
Best Plasma Cutters for Mild Steel:
The Hypertherm Powermax30 XP cuts mild steel cleanly up to ⅝ inch, making it the everyday choice for garages and small shops. Hypertherm’s Powermax lineup scales with your cutting needs — from the compact 30 XP to the 45 XP, 65 SYNC, and 85 SYNC — giving shops a clear upgrade path as material thickness increases.
For contractors who need more power, the Miller Spectrum 625 X‑TREME handles mild steel up to ⅝ inch plate, delivering pro‑grade portability and rugged performance.
The Lincoln Electric FLEXCUT series is the newest disruptor in the plasma market, offering fast cut speeds, competitive pricing, and a 5‑year warranty that makes it a strong alternative for shops wanting performance without the premium price tag.
Cutting Stainless Steel for Demanding Shops
When the job calls for stainless steel, you’re dealing with a tougher metal and stronger corrosion resistance. Stainless is harder to cut and shape cleanly, but its sheer force and durability make it one of the heaviest hitters in fabrication.
Stainless steel is a shop-level metal that pushes plasma cutters hard. Long runs can strain duty cycles. Consumables wear faster under the extra toughness, and without a strong but stable arc, edges risk warping or discoloration. Plasma cutting stainless steel requires endurance, efficiency, and precision to meet the metal’s demands.
Cutting Demands for Stainless Steel:
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Consistent Duty Cycle – Stainless is a tough metal. It requires steady output that won’t overheat mid-job.
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Consumable Efficiency – Harder metal burns through tips faster, so cutters need consumables that last longer and keep costs down.
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Precision Power – Clean stainless edges depend on a stable arc and controlled amperage that maintain accuracy under resistance.
Best Plasma Cutters for Stainless Steel:
The Hypertherm Powermax45 XP is the sweet spot for stainless. Handheld and versatile, it cleanly cuts stainless steel up to ⅝ inch, delivers a 50% duty cycle at 45 amps and 100% at 32 amps, and it uses Hypertherm’s CopperPlus electrodes that extend life when cutting stainless up to ½ inch.
For industrial stainless jobs, the Hypertherm Powermax65 SYNC clean cuts up to ¾ in thick and offers a higher duty cycle and amperage than the 45 XP. It can be configured with a CNC interface for mechanized cutting, and its SmartSYNC® consumables extend life under stainless’s tougher demands. (Read on for a deeper look at how Hypertherm’s SYNC technology is revolutionizing plasma cutting.)
Cutting Aluminum for Garages & Auto Repair
When the job calls for aluminium, you’re cutting a lighter metal with a tendency to warp under heat. Aluminum’s quick reaction and heat sensitivity make it trickier to weld or cut, but its strength‑to‑weight balance makes it a go-to choice for automotive, body work, and structural projects.
This sensitive metal pulls heat away from the cut zone faster than steel. This makes it harder to maintain a stable arc and causes uneven edges. No good. It also melts more quickly and is softer, so plasma arcs, especially on thin sheets, need to have tight heat control and a smooth hand.
Cutting Demands for Aluminum:
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Finesse over brute force – Aluminum’s softness demands delicate arc control; engineered nozzle and swirl ring design keep cuts clean without gumming or distortion.
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Compressor independence – Portability matters in garages and auto shops; consider a cutter that carries its own air supply, eliminating external compressors.
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Amperage flexibility – From thin body panels to thicker structural pieces, cutters need adjustable output that adapts across thicknesses without overpowering the metal.
Best Plasma Cutters for Aluminum: 
The Hypertherm Powermax30 AIR cuts aluminum up to ⅜ inch and carries its own compressor, making it the portable choice for garages and auto repair.
For shops handling thicker aluminum, the Miller Spectrum 375 X‑TREME cuts cleanly up to ⅜ inch, with severance up to ⅝ in. It’s adjustable output and rugged portability, giving operators control across varying aluminum thicknesses without distortion.
Cutting Copper, Brass, or Thick Plate: Bonus Coverage
When the job calls for welding specialty metals, accuracy and precision are crucial. Copper and brass show up in specialty fabrication and electrical work, while thick plate (>1") is the domain of heavy industry. These aren’t everyday shop jobs, but they matter for niche and industrial buyers.
Specialty Metals: The Hypertherm Powermax65 SYNC is powerful and versatile enough to handle specialty metals like copper or brass with precision. Configurable with a CNC interface for mechanized cutting, it uses SmartSYNC® torches and single‑piece cartridge consumables to balance precision with longer life.
Heavy Plate: The Hypertherm Powermax125 is built for heavy industry. With 480V power and a 100% duty cycle, it cleanly cuts up to 1.5 inches by hand and pierces 1 inch mechanized. This is your go‑to plasma cutter for structural steel and industrial plate work.
Baker’s Gas: The Right Cutter for Every Metal
Plasma cutting makes you a fabricator. A welder. A metalworker. A builder. A maker. An artist. You already respect the metal.
Whether you’re working on fabrication floors or garage shops, in construction work, or with industrial-sized cutting demands, Baker’s Gas has a trusted, brand-name, warranty-backed plasma cutting solution built just for your metal.
Hypertherm now backs its Powermax lineup with a 6-year warranty–it’s the strongest in the industry, protecting your investment longer than any other brand. Lincoln’s FLEXCUT series carries a 5-year warranty, and Miller’s tried-and-true Blue warranty covers 3 years. When you buy from Baker’s, you’re getting plasma cutters built to last with warranties that prove it.
At Baker’s Gas, we respect the metal the same way you do. Cut it right.
Discover complete plasma cutting solutions for every metal at Baker’s Gas.
