How Arcuracy reads a welder

One model per page

Each product page covers one exact model and shows its model number. Output, duty cycle, input power, thickness, wire and electrode sizes, cut capacity, air supply, shade range and the rest come from that model's listing or maker page, with the source passage kept on file.

A rating the maker doesn't give reads 'Not stated'. Figures aren't carried over from a bigger or smaller sibling, because a 140-amp and a 180-amp version of the same machine can share a name and little else.

Duty cycle and thickness, read carefully

• Duty cycle is always shown with the amperage it applies to. A percentage without an amperage is shown as the maker wrote it and never used in a comparison.
• Thickness claims are quoted in the maker's wording ('single pass', 'multi-pass', 'with flux-core'), because makers mean different things by 'welds up to'.
• Plasma cut capacity is quoted as the maker labels it: rated, clean or severance cut.

The rules behind the tools

• Amperage: Miller's rule of thumb of 1 amp of output per 0.001 inch of steel, with Miller's wire-size table and wire-speed multipliers. It's shown as a starting point.
• Lens shade: OSHA 29 CFR 1910.133 minimum protective shades by process and current.
• Duty cycle: a percentage of a 10-minute period (Miller); the calculator uses only the maker's stated rating points and never extrapolates.

Ordering

Buyers' lists state their order: by a maker rating such as output or duty cycle, or in an editor's order for a stated job, with a written reason for each machine.

Safety statements

Safety guidance names its source: OSHA's eye-protection rule and fact sheet for shades, OSHA 1910.252 for fire prevention, OSHA's fume fact sheet for ventilation. It points to the machine's manual and never replaces it.

Updated October 2026.