Matching rule reminder
Smallest class with clean-cut claim ≥ required thickness.
Details
Mild steel · clean cut not severance · PPE.
Reference
Plasma cutter sizing reference
Worked thickness examples and class checks for common US handheld plasma clean-cut screens.
0.25 in → 40 A
0.25 ≤ 0.47 → 40 class.
Details
Enter thickness_in 0.25.
0.48 in → 50 A
Fails 40 (0.48 > 0.47); clears 50 (0.48 ≤ 0.5) → 50 class.
Details
Enter thickness_in 0.48.
0.55 in → 65 A
Fails 40/50; clears 65 (0.55 ≤ 0.625) → 65 class.
Details
Enter thickness_in 0.55.
0.75 in → NO_MATCH
0.75 > 0.625 clean ceiling → NO_MATCH.
Details
Do not force a 65 A class for this thickness.
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