# Hobart AirForce 40i Plasma Cutter vs Miller Spectrum 625 X-TREME Plasma Cutter: specs and price compared

A sourced, side-by-side comparison of the Hobart AirForce 40i Plasma Cutter (Hobart) and Miller Spectrum 625 X-TREME Plasma Cutter (Miller Electric) among plasma cutters. Hobart AirForce 40i Plasma Cutter is the cheaper of the two at $2009.

## Side by side

| Spec | Hobart AirForce 40i Plasma Cutter | Miller Spectrum 625 X-TREME Plasma Cutter |
| --- | --- | --- |
| US price | $2009 | $2508 |
| Brand | Hobart | Miller Electric |
| 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 |

## Key differences

- 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

## Sources

- Hobart AirForce 40i Plasma Cutter: https://store.cyberweld.com/products/hobart-airforce-40i-plasma-cutter-500576 (store.cyberweld.com, verified 2026-08-11)
- Miller Spectrum 625 X-TREME Plasma Cutter: https://store.cyberweld.com/products/miller-spectrum-625-x-treme-plasma-cutter-w-12-ft-torch-907579 (store.cyberweld.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/plasma-cutters/hobart-airforce-40i-vs-miller-spectrum-625-x-treme/
Cite: Per The Front Desk Review, Hobart AirForce 40i Plasma Cutter ($2009) vs Miller Spectrum 625 X-TREME Plasma Cutter ($2508) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/plasma-cutters/hobart-airforce-40i-vs-miller-spectrum-625-x-treme/
License: CC BY 4.0.