Miller Electric
Miller Spectrum 625 X-TREME Plasma Cutter
$2508
Best Plasma Cutters · head-to-head
Miller Spectrum 625 X-TREME Plasma Cutter vs ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter
A sourced, side-by-side comparison. ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter is cheaper at $1734. Every spec and price links to its source.
ESAB
ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter
$1734Cheaper
Which is better: the Miller Spectrum 625 X-TREME Plasma Cutter or ESAB (Thermal Dynamics) Cutmaster 40 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 ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter is the cheaper at $1734. Get the Miller Spectrum 625 X-TREME Plasma Cutter for the stronger spec sheet, the ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter to spend less.
See Miller Spectrum 625 X-TREME Plasma Cutter on Amazon See ESAB (Thermal Dynamics) Cutmaster 40 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 | Miller Spectrum 625 X-TREME Plasma Cutter | ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter |
|---|---|---|
| US price | $2508 | $1734 |
| Brand | Miller Electric | ESAB |
| Released | — | — |
| Cutting amperage (A) | 40 | 40 |
| Rated cut thickness | 5/8 in (16mm) | 1/2 in (12mm) |
| Sever cut thickness | — | 1 in (25mm) |
| Duty cycle at rated amps | — | 40% @ 40A, 60% @ 30A, 100% @ 20A |
| Input voltage | 120V/240V, Auto-Line | 110-240V, 1-PH, auto-sensing |
| Pilot arc | Yes | Yes |
| Air requirement | — | 300-500 cfh (5-8.3 CFM) @ 90-125 psi |
| Weight (lb) | 21 | 22 |
Sources — Miller Spectrum 625 X-TREME Plasma Cutter: store.cyberweld.com (verified 2026-08-11). ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter: store.cyberweld.com (verified 2026-08-11).
What's the difference between the Miller Spectrum 625 X-TREME Plasma Cutter and ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Rated cut thickness: Miller Spectrum 625 X-TREME Plasma Cutter 5/8 in (16mm) vs ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter 1/2 in (12mm)
- Input voltage: Miller Spectrum 625 X-TREME Plasma Cutter 120V/240V, Auto-Line vs ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter 110-240V, 1-PH, auto-sensing
- Weight (lb): Miller Spectrum 625 X-TREME Plasma Cutter 21 vs ESAB (Thermal Dynamics) Cutmaster 40 Plasma Cutter 22