A 230 V shop cutter for farm and fabrication work up to 1/2 in steel, from a big-name maker with dealer support. Buyers who need to cut on household power should look at dual voltage machines.
Amazon $1,639
A light, dual voltage cutter for home shops and auto body work up to 3/8 in steel, from an industrial brand with wide dealer support.
- 30 AOutput
- 3/8 inRated cut
- 40% at 30 ADuty cycle
- 120/240 VInput
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Runs from a household outlet or a 240 V dryer outlet
- Cuts 3/8 in steel cleanly and severs 5/8 in
- Grate mode keeps the pilot arc going over expanded metal
- Full 30 A output runs only 40% of the time
- Costs about as much as cutters that cut 1/2 in
- Three year warranty, half what Hypertherm gives
The Thermal Dynamics Cutmaster+ family
Every Thermal Dynamics Cutmaster+ model we rank, smallest first. Ratings compare each against its own size.
| Model | Output | Rating | Price |
|---|---|---|---|
| Thermal Dynamics Cutmaster 30+ (this one) | 30 A | 3.0/5 | $1,450 |
| Thermal Dynamics Cutmaster 50+ | 50 A | 3.5/5 | $2,700 |
| Thermal Dynamics Cutmaster 70+ | 70 A | 3.5/5 | $3,485 |
How it scores
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.
Specifications
| Model number | 1-3000-1 |
|---|---|
| Cutting | |
| Input voltage | 120/240 V |
| Maximum output | 30 A |
| Rated cut, mild steel | 3/8 in |
| Sever cut, mild steel | 5/8 in |
| Rated duty cycle | 40% at 30 A |
| Pilot arc | Yes |
| Air and build | |
| Air supply | 5.8 cfm, 90 psi |
| Weight | 24.2 lb |
| Warranty | 3 years |
| Released | 2023-02 |
Alternatives in this size
For repair work on 230 V where hauling a compressor is a nuisance, cutting steel up to about 5/16 in. Buyers who already own a compressor get thicker cuts for less from a 40 A machine.
Amazon $1,359For sheet metal, HVAC and body work where carrying a compressor is not practical. Anyone with a compressor gets far more cutting for the money from a 30 to 40 A machine.
Amazon $1,012.99 Cyberweld $1,011Compare
Compare the Thermal Dynamics Cutmaster 30+ with any other plasma cutter →
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