PrimeWeld CUT50DP
#10 in Over 45 AFull review
For a hobby or farm shop that wants a cheap dual voltage cutter with a pilot arc for 1/2 in steel and below. Look elsewhere if it will run on a CNC table.
Amazon $399$399
The PrimeWeld CUT50DP is the better plasma cutter overall, rated 3.6 to 3.5. The PrimeWeld CUT50DP leads on value and duty cycle. The Thermal Dynamics Cutmaster 50+ wins on cut. The PrimeWeld CUT50DP costs $2,301 less ($399 vs $2,700).
Thermal Dynamics Cutmaster 50+
#13 in Over 45 AFull review
A dual voltage 50 A cutter for farm and fabrication shops that want thick-plate capacity and a CNC port in one machine.
Amazon $2,700$2,700
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the PrimeWeld CUT50DP for value ($845.34 per inch of rated cut ($399, 0.472 in) vs $2,700 per inch of rated cut ($2,700, 1 in)) and duty cycle (60% at full output (50 A) vs 50% at full output (50 A)).
- Choose the Thermal Dynamics Cutmaster 50+ for cut (1 in rated cut on mild steel vs 0.472 in rated cut on mild steel).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 45 A plasma cutter; a clear win is highlighted. How we rank explains each one.
| Factor weight | PrimeWeld CUT50DP | Thermal Dynamics Cutmaster 50+ |
|---|---|---|
| Overall rating | 3.6/5 | 3.5/5 |
| Value 30% | 75 $845.34 per inch of rated cut ($399, 0.472 in) | 36 $2,700 per inch of rated cut ($2,700, 1 in) |
| Cut 20% | 0 0.472 in rated cut on mild steel | 67 1 in rated cut on mild steel |
| Duty cycle 15% | 100 60% at full output (50 A) | 75 50% at full output (50 A) |
| Pilot arc 10% | 100 pilot arc | 100 pilot arc |
| Warranty 25% | 50 3-year warranty on the machine | 50 3-year warranty on the machine |
Specifications
| PrimeWeld CUT50DP | Thermal Dynamics Cutmaster 50+ | |
|---|---|---|
| Cutting | ||
| Input voltage | 120/240 V | 120/240 V |
| Maximum output | 50 A | 50 A |
| Rated cut, mild steel | 0.472 in | 1 in |
| Sever cut, mild steel | 0.63 in | 1 1/4 in |
| Rated duty cycle | 60% at 50 A, 25 °C | 50% at 50 A |
| Pilot arc | Yes | Yes |
| Arc start | High frequency | - |
| Air and build | ||
| Air supply | 5 cfm, 75 psi | 8.3 cfm, 90 psi |
| CNC port | - | Yes |
| Weight | 24 lb | 38.6 lb |
| Warranty | 3 years | 3 years |
| Released | - | 2024-10 |