Air Plasma Cutting System

On orders over $200.00.
CONUS, Standard Ground Shipping
Prices subject to change

Owner's Manual

Thermal Dynamics introduces CUTMASTER 42, Cutmaster® TRUE™ Series has been designed with the idea that recommended cut capacity should also be the TRUE cut capacity.  The TRUE Cut Series eliminates the concept of having to “buy up”, purchasing a machine larger than you actually need.  With the introduction of the CUTMASTER TRUE Series, a one-half inch recommended capacity machine will cut one-half inch material ALL DAY, EVERY DAY. NO EXCEPTIONS.  The all-new THERMAL DYNAMICS® TRUE™ Series CUTMASTER® 42 is one of the most affordable, highest quality 1/4 plasma machines.
Part Number: 1-4200
Warranty: 4 Years

CUTMASTER 42 - The Next Generation

  • Front Panel LEDs indicate status conditions for maximum efficiency.
  • Storage compartment for convenient access to spare parts and consumables.
  • Versatile torch makes it easy to add lead extensions or convert to a machine torch.
  • Easy transportation and protection for unmatched durability.
  • Auto Pilot Restart feature instantly reignites the pilot arc while cutting expanded metals.
  • Lighter weight design for maximum portability.

Included Features

  • Cutmaster 42 power supply.
  • All new SL40 torch.
  • Safety gloves & glasses.
  • Instructional plasma cutting DVD.
  • Consumables set.
  • Heavy-duty carrying case.
  • Power plug adapters.

Machine Specifications

Processes Manual Air Cutting Plasma
Applications Auto Body / Marine Repair
Plumbing / HVAC
Home Shop
Metal Building & Roof Construction
Maximum Amperage Output 27A @ 120V
40A @ 230V
Output Power 3.8 kW
Recommended Cut - Inches (mm) 1/4" (6mm) @ 120V
3/8" (9.5mm) @230V
Maximum Cut 5/8" (15mm)@ 120V
Pierce Rating 1/4" (6mm) @ 120V
3/8" (9.5mm) @230V
Rated Output 40 Amps
Amperage Draw 29A @ 120V
15 AMps @230V
Input Voltage 120/230V, 1ph, 50/60 Hz
Duty Cycle (@40 deg C) 40% @ 40A @ 230V
Dimensions (H x W x L) Inches (mm) 9.0" (228 mm) x 7" (117 mm) x 18.5" (470 mm)
Weight 26 lbs. (11.8 kg)
Warranty - (Power Source) Parts & Labor 4 Years
Torch Model SL40
Air Pressure 75 psi (5.2 bar)
Flow 3.2 cfm (91 l/m)
Warranty - (Torch) Parts & Labor 1 Year

Cut Quality

Genuine Cut - With 30 amps of available cutting power, CUTMASTER 42 has plenty of power to quickly and precisely cut 1/4" ( 6mm ) steel. Genuine Cut means 10 inches per minute cutting speed, an excellent smooth cut surface, and little or no dross with no need for grinding or rework.

1/4" ( 6 mm ) Genuine Cut


Maximum Cut - CUTMASTER 42 has plenty of power to quickly and smoothly through 5/8" ( 15mm ) mild steel. This is especially important when the cut requires a clean bevel, or when the cut involves several overlapping pieces of thinner material which have been built up to a thicker material to cut.

5/8" ( 16 mm ) Maximum Cut


9-0096 Electrode
9-0097 Start Cartridge
9-0091 Tips, 20A Drag
9-0093 Tips, 40A Drag
9-0094 Tips, 40A Standoff
9-0098 Shield Cup

Stock No.
$31.30 9-0096 Electrode, Sold in a package of 5
$30.15 9-009- Start Cartridge
$20.50 9-0091 Tips, 20A Drag, Sold in a package of 5
$20.50 9-0093 Tips, 40A Drag, Sold in a package of 5
$20.50 9-0094 Tips, 40A Standoff, Sold in a package of 5
$23.10 9-0098 Shield Cup

CutMaster 42:
Buy Price Part # Description
$1,400.00 1-4200 CUTMASTER 42, 120/230 V, w/ SL40 75o hand torch, 15ft.

On orders over $200.00.
Contiguous U.S., Standard Ground Shipping
Prices subject to change
Some products not kept in stock
Last update 24 November 2015

All products subject to availability.
Prices are subject to change.