Thermal Dynamics Cutmaster 70+

Last updated: November 2, 2026

Thermal Dynamics Cutmaster 70+
3.5/5#17 of 21 in over 45 A plasma cutters
3.5

A 70 A cutter for farms and fabrication shops that cut thick plate and want a CNC-ready machine. Home shops cutting under 3/4 in can buy smaller.

  • 70 AOutput
  • 1 1/8 inRated cut
  • 40% at 70 ADuty cycle
  • 120/240 VInput
Check price at Amazon$3,485

Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Severs 1-1/2 in steel for heavy farm and trailer repair
  • Also runs from a household outlet at 25 A for light work
  • Built-in CNC port for adding a cutting table later
Cons
  • Full 70 A output runs only 40% of the time on 240 V
  • Needs a 90 A breaker for full output on 240 V
  • 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.

ModelOutputRatingPrice
Thermal Dynamics Cutmaster 30+30 A3.0/5$1,450
Thermal Dynamics Cutmaster 50+50 A3.5/5$2,700
Thermal Dynamics Cutmaster 70+ (this one)70 A3.5/5$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 number1-7000-1
Cutting
Input voltage120/240 V
Maximum output70 A
Rated cut, mild steel1 1/8 in
Sever cut, mild steel1 1/2 in
Rated duty cycle40% at 70 A
Pilot arcYes
Air and build
Air supply8.3 cfm, 90 psi
CNC portYes
Weight38.6 lb
Warranty3 years
Released2024-10

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