A light dual voltage cutter for farms and shops that cut steel up to 5/8 in, backed by Hobart’s long warranty. Hobby users on a budget can get similar cut ratings for much less.
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Every Hobart Airforce i model we rank, smallest first. Ratings compare each against its own size.
| Model | Output | Rating | Price |
|---|---|---|---|
| Hobart AirForce 27i | 30 A | 3.4/5 | $1,565 |
| Hobart AirForce 40i (this one) | 40 A | 4.1/5 | $2,009 |
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Model number | 500576 |
|---|---|
| Cutting | |
| Input voltage | 120/240 V |
| Maximum output | 40 A |
| Rated cut, mild steel | 5/8 in |
| Sever cut, mild steel | 7/8 in |
| Rated duty cycle | 60% at 40 A, 40 °C |
| Pilot arc | Yes |
| Arc start | Blowback |
| Air and build | |
| Air supply | 6 cfm, 90 psi |
| Weight | 21 lb |
| Warranty | 5 years |
A professional 45 A cutter for fabrication shops and farms with a 240 V circuit that cut 5/8 in steel regularly. Pick it for long consumable life and easy setup, not low price.
Amazon $2,940 Welder Supply $2,785A compact, dual voltage cutter for home shops and repair work that cut up to 1/2 in steel. It costs more than import brands but brings Hypertherm consumable life and a six year warranty.
Amazon $1,595 Welder Supply $1,384A light, dual voltage Miller cutter for shops and job sites that cut up to 5/8 in steel day after day. Worth it for buyers who value Miller build and dealer service; hobby users can pay much less.
Amazon $2,917.20 Cyberweld $2,508Compare the Hobart AirForce 40i with any other plasma cutter →
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