Thermal Dynamics Cutmaster 60i
Key Specifications
input voltage
input current
recommended generator
open circuit voltage
output current
duty cycle
How much does the Thermal Dynamics Cutmaster 60i cost?
Estimated price range
Our best estimate for a cnc plasma cutting in this class — not a quote from Thermal Dynamics. Configuration moves it a long way.
Overview
The Thermal Dynamics Cutmaster 60i is a compact air plasma power source with a continuously adjustable output of 10 to 60 A, a recommended cut of 20 mm and a sever capacity of 38 mm. It weighs 16.8 kg in a 536 x 199 x 593 mm case, small enough for one person to carry between a bench and a job.
The three capacity figures answer different questions. 20 mm is both the recommended cut and the pierce capacity, so anything the unit cuts at its recommended thickness it can also start in the middle of the plate. 38 mm is severance only. The published cut speeds show why: 2030 mm/min at 6 mm falls to 660 mm/min at 13 mm, 360 mm/min at 19 mm and 150 mm/min at 25 mm. At 32 mm and at 38 mm the speed is 110 mm/min.
Duty cycle depends on the current chosen. Thermal Dynamics lists 50% at 60 A, 60% at 50 A and 100% at 40 A. The full output is a half-time rating, and cutting that keeps the arc on without breaks should be planned around 40 A.
The supply side is narrow. Input is 400 VAC three-phase at 50/60 Hz, drawing 13.2 A at 400 V, and the recommended generator for full output is 15 kW. Gas is compressed air at 6.2-8.6 bar and 142-235 l/min, so the compressor has to hold that flow for as long as the arc is on.
The Victor Thermal Dynamics PAK 200i, at 222 kg (490 lbs), is a different class of machine. The Cutmaster 60i is the one to look at when the power source has to travel.
Full Specifications
| Parameter | Value |
|---|---|
| Input Voltage | 400 VAC, 400 V, 3 Φ, 50/60 Hz |
| Input Current | 13.2 A @ 400 V |
| Recommended Generator | 15 (full output) kW |
| Open Circuit Voltage | 300 VDC |
| Output Current | 10 - 60 A, Continuously adjustable |
| Duty Cycle | 50 A @ 60 %; 60 A @ 50 %; 40 A @ 100 % |
| Gas Requirements | Compressed Air |
| Gas Pressure | 6.2-8.6 bar |
| Gas Flow | 142-235 l/min |
| Recommended Cut | 20 mm |
| Pierce Capacity | 20 mm |
| Sever Capacity | 38 mm |
| Recommended Cut Speed | 6 mm: 2030 mm/min; 13 mm: 660 mm/min; 16 mm: 480 mm/min; 19 mm: 360 mm/min; 25 mm: 150 mm/min; 32 mm: 110 mm/min; 38 mm: 110 mm/min |
| Floor Space Required | 536 x 199 x 593 mm |
| Machine Weight | 16.8 Kg |
Specifications sourced from esab.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Output is continuously adjustable from 10 to 60 A
- Pierce capacity equals the recommended cut at 20 mm, so those cuts can start away from the plate edge
- Weighs 16.8 kg in a 536 x 199 x 593 mm case
- Runs on compressed air alone, at 6.2-8.6 bar and 142-235 l/min
- 100% duty cycle at 40 A, and 60% at 50 A
- Cut speeds are published for seven thicknesses from 6 mm to 38 mm, which makes cycle times easy to estimate
Limitations
- At the full 60 A the duty cycle is 50%, so long cuts at maximum output need pauses
- Only one input is listed: 400 VAC three-phase at 50/60 Hz
- Above 20 mm the unit is severing, and speed drops to 150 mm/min at 25 mm and 110 mm/min at 32 mm
- Needs up to 235 l/min of compressed air, more than a small workshop compressor may sustain
- The table lists no machine torch or CNC interface, so table use has to be confirmed with the supplier
Best For
Frequently Asked Questions
01
The recommended cut is 20 mm and the pierce capacity is also 20 mm. Sever capacity is 38 mm, which is the thickest material the unit will separate; at that thickness the listed cut speed is 110 mm/min.
02
Thermal Dynamics lists recommended cut speeds of 2030 mm/min at 6 mm, 660 mm/min at 13 mm, 480 mm/min at 16 mm, 360 mm/min at 19 mm, 150 mm/min at 25 mm, and 110 mm/min at both 32 mm and 38 mm.
03
It depends on the output current: 50% at 60 A, 60% at 50 A and 100% at 40 A. For continuous work, set the job up around 40 A. At 60 A the unit is rated to cut for half of the time.
04
The listed input is 400 VAC three-phase at 50/60 Hz, with an input current of 13.2 A at 400 V. It runs on compressed air at 6.2-8.6 bar with a flow of 142-235 l/min. No other input voltage is listed.
05
Thermal Dynamics gives a recommended generator of 15 kW for full output. The generator has to supply 400 VAC three-phase, since that is the only input listed, and the open circuit voltage of the unit is 300 VDC.
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