Hobart
Hobart AirForce 40i Plasma Cutter
$2009Cheaper
Best Plasma Cutters · head-to-head
Hobart AirForce 40i Plasma Cutter vs Miller Spectrum 625 X-TREME Plasma Cutter
A sourced, side-by-side comparison. Hobart AirForce 40i Plasma Cutter is cheaper at $2009. Every spec and price links to its source.
Miller Electric
Miller Spectrum 625 X-TREME Plasma Cutter
$2508
Which is better: the Hobart AirForce 40i Plasma Cutter or Miller Spectrum 625 X-TREME Plasma Cutter?
The Miller Spectrum 625 X-TREME Plasma Cutter wins 1 of the 1 specs we compare head to head; the other wins 0. The Hobart AirForce 40i Plasma Cutter is the cheaper at $2009. Get the Miller Spectrum 625 X-TREME Plasma Cutter for the stronger spec sheet, the Hobart AirForce 40i Plasma Cutter to spend less.
See Hobart AirForce 40i Plasma Cutter on Amazon See Miller Spectrum 625 X-TREME Plasma Cutter on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Hobart AirForce 40i Plasma Cutter | Miller Spectrum 625 X-TREME Plasma Cutter |
|---|---|---|
| US price | $2009 | $2508 |
| Brand | Hobart | Miller Electric |
| Released | — | — |
| Cutting amperage (A) | 40 | 40 |
| Rated cut thickness | 5/8 in (16mm) | 5/8 in (16mm) |
| Sever cut thickness | 7/8 in (22mm) | — |
| Duty cycle at rated amps | 60% @ 40A/240V, 35% @ 27A/120V | — |
| Input voltage | 120V/240V (MVP multi-voltage plug) | 120V/240V, Auto-Line |
| Pilot arc | Yes | Yes |
| Air requirement | 6.0 CFM @ 90-120 psi | — |
| Weight (lb) | 22 | 21 |
Sources — Hobart AirForce 40i Plasma Cutter: store.cyberweld.com (verified 2026-08-11). Miller Spectrum 625 X-TREME Plasma Cutter: store.cyberweld.com (verified 2026-08-11).
What's the difference between the Hobart AirForce 40i Plasma Cutter and Miller Spectrum 625 X-TREME Plasma Cutter?
Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.
- Input voltage: Hobart AirForce 40i Plasma Cutter 120V/240V (MVP multi-voltage plug) vs Miller Spectrum 625 X-TREME Plasma Cutter 120V/240V, Auto-Line
- Weight (lb): Hobart AirForce 40i Plasma Cutter 22 vs Miller Spectrum 625 X-TREME Plasma Cutter 21